6c669073bc4850de3923b22e82f754a62f6b620b291618dfb00669100381e751

General

Target

6331.case-11830.xls
Size

146KB
MD5

c0b97d7ef4029e093271c362794fccb7
SHA1

df568590ec942e44923d76793c92e8418e40a55f
SHA256

3409c35ec3fc7cb56d75a790fd4693fdd7935e426676d72df67d234007f593e1
SHA512

0e9bb2a3831a8a1d96e15631a8b20c39986fa207d7f229537c3c537fe7b46a3b7a4546f3f3289b7e9333d9cf0b07e7616e7895a823cb77c9ddd93216568d720c
SSDEEP

3072:Vk3hOdsylKlgxopeiBNhZFGzE+cL2kdAvDiKHjEtpbDZEOrkeGPfJ0s3Tq48L/iy:Vk3hOdsylKlgxopeiBNhZF+E+W2kdAvk

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2672	1832	explorer.exe	27
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2996	1832	explorer.exe	27

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1832	EXCEL.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1832	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1832	EXCEL.EXE
1832	EXCEL.EXE
1832	EXCEL.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2672	1832	EXCEL.EXE	28
PID 1832 wrote to memory of 2672	1832	EXCEL.EXE	28
PID 1832 wrote to memory of 2672	1832	EXCEL.EXE	28
PID 1832 wrote to memory of 2672	1832	EXCEL.EXE	28
PID 2736 wrote to memory of 2468	2736	explorer.exe	30
PID 2736 wrote to memory of 2468	2736	explorer.exe	30
PID 2736 wrote to memory of 2468	2736	explorer.exe	30
PID 1832 wrote to memory of 2996	1832	EXCEL.EXE	31
PID 1832 wrote to memory of 2996	1832	EXCEL.EXE	31
PID 1832 wrote to memory of 2996	1832	EXCEL.EXE	31
PID 1832 wrote to memory of 2996	1832	EXCEL.EXE	31
PID 2628 wrote to memory of 2472	2628	explorer.exe	33
PID 2628 wrote to memory of 2472	2628	explorer.exe	33
PID 2628 wrote to memory of 2472	2628	explorer.exe	33

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\6331.case-11830.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:1832
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe C:\Users\Admin\AppData\Local\Temp\pQRrErz.vbs
  2⤵
  - Process spawned unexpected child process
  PID:2672
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe C:\Users\Admin\AppData\Local\Temp\AcWROBlN.vbs
  2⤵
  - Process spawned unexpected child process
  PID:2996

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\pQRrErz.vbs"
  2⤵
  PID:2468

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\AcWROBlN.vbs"
  2⤵
  PID:2472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\AcWROBlN.vbs

Filesize
721B

MD5
615b8b8121bf66bd099fcdc65df12ead

SHA1
05bad3328fc421244ea321e58a3ce7dcc04ef14b

SHA256
bd5ec9558ddf0c24701e640af810ed767b4979b1b75b17f85437582485eef5e2

SHA512
523066a2129d353aebfbb5c65529f4a835d58428c6dfa494212889118310f9fcd1973fee2aaacb005b6667b2b9f545970959611a467a0765a98e3d88405a16fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\pQRrErz.vbs

Filesize
315B

MD5
cfb9a4c1aee86d97074eae82ee87e917

SHA1
b04623afa5e81eae8a0b205ce4349dbed3fb4004

SHA256
02c2eb3ce251cbec0035017aff09448562f765c2d782065df5f85d226f17b35f

SHA512
184ff9fae5f3bd9d76ceb7c21fb20eaf993a77ab47a1d615f5ae8fe61db19009cd394ee3edc5d952be6d8e2f48fc1e2935d4359ad5af6221ac04acfad97986e0

Download Submit
C:\Users\Admin\AppData\Local\Temp\v5fu.txt

Filesize
3B

MD5
21438ef4b9ad4fc266b6129a2f60de29

SHA1
5eb8e2242eeb4f5432beeec8b873f1ab0a6b71fd

SHA256
13bf7b3039c63bf5a50491fa3cfd8eb4e699d1ba1436315aef9cbe5711530354

SHA512
37436ced85e5cd638973e716d6713257d692f9dd2e1975d5511ae3856a7b3b9f0d9e497315a058b516ab31d652ea9950938c77c1ad435ea8d4b49d73427d1237

Download Submit
memory/1832-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1832-1-0x000000007278D000-0x0000000072798000-memory.dmp

Filesize
44KB

Download
memory/1832-8-0x000000007278D000-0x0000000072798000-memory.dmp

Filesize
44KB

Download

Analysis

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