6cd76e8f33a945b51d20b909495bbc613f78151dbea6c3a7a3a235bfd2167cdf

General

Target

0112_91448090.doc
Size

735KB
MD5

6a86a3f2527f8b42089108b78763e3ea
SHA1

18d2deff4bd27da46897ea93dace03e7dca71084
SHA256

6cd76e8f33a945b51d20b909495bbc613f78151dbea6c3a7a3a235bfd2167cdf
SHA512

ba4a3c88140b4f475300a75dc3e15f74a245ad2cfe0285b3ea515bde7ca6d8f87e4d8e6bce8d5ed095cd4660b08bc960fc34e743cb6b4d6f38c744e269168f1e

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process	1376	988	rundll32.exe	WINWORD.EXE

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

30 512 rundll32.exe
35 512 rundll32.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

512 rundll32.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

29 api.ipify.org
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2116 512 WerFault.exe rundll32.exe

flow	pid	process
30	512	rundll32.exe
35	512	rundll32.exe

flow	ioc
29	api.ipify.org

pid	pid_target	process	target process
2116	512	WerFault.exe	rundll32.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

NTFS ADS 1 IoCs

Processes:

WINWORD.EXE

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\{11A997A0-82E0-41A7-ACFC-FC2A52288388}\0fiasS.tmp:Zone.Identifier	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

988 WINWORD.EXE
988 WINWORD.EXE

pid	process
988	WINWORD.EXE
988	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

rundll32.exeWerFault.exe

pid	process
512	rundll32.exe
512	rundll32.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe
2116	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 2116 WerFault.exe
Token: SeBackupPrivilege 2116 WerFault.exe
Token: SeDebugPrivilege 2116 WerFault.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

988 WINWORD.EXE
988 WINWORD.EXE
988 WINWORD.EXE
988 WINWORD.EXE
988 WINWORD.EXE
988 WINWORD.EXE
988 WINWORD.EXE

description	pid	process
Token: SeRestorePrivilege	2116	WerFault.exe
Token: SeBackupPrivilege	2116	WerFault.exe
Token: SeDebugPrivilege	2116	WerFault.exe

pid	process
988	WINWORD.EXE
988	WINWORD.EXE
988	WINWORD.EXE
988	WINWORD.EXE
988	WINWORD.EXE
988	WINWORD.EXE
988	WINWORD.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

WINWORD.EXErundll32.exe

description	pid	process	target process
PID 988 wrote to memory of 3480	988	WINWORD.EXE	splwow64.exe
PID 988 wrote to memory of 3480	988	WINWORD.EXE	splwow64.exe
PID 988 wrote to memory of 1376	988	WINWORD.EXE	rundll32.exe
PID 988 wrote to memory of 1376	988	WINWORD.EXE	rundll32.exe
PID 1376 wrote to memory of 512	1376	rundll32.exe	rundll32.exe
PID 1376 wrote to memory of 512	1376	rundll32.exe	rundll32.exe
PID 1376 wrote to memory of 512	1376	rundll32.exe	rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0112_91448090.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:3480

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\Microsoft\Templates\W0rd.dll,DllUnregisterServer
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1376

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\Microsoft\Templates\W0rd.dll,DllUnregisterServer
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 1364
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2116

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Templates\W0rd.dll
MD5
c2654475646c54ffa05986289fd568d2

SHA1
92a53864e8b9f9192d0721ed7692232f94b40e78

SHA256
00b2312dd63960434d09962ad3e3e7203374421b687658bd3c02f194b172bfe3

SHA512
087e71e48bf3e015c0394dea37db5bb551db140302de3409eeac4b6e5253351aa47e57ad95ebcff4d104b583ac81273a9b18dd866bcd3004a22b52e90d8a48cc

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Templates\W0rd.dll
MD5
c2654475646c54ffa05986289fd568d2

SHA1
92a53864e8b9f9192d0721ed7692232f94b40e78

SHA256
00b2312dd63960434d09962ad3e3e7203374421b687658bd3c02f194b172bfe3

SHA512
087e71e48bf3e015c0394dea37db5bb551db140302de3409eeac4b6e5253351aa47e57ad95ebcff4d104b583ac81273a9b18dd866bcd3004a22b52e90d8a48cc

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memory/512-7-0x0000000000000000-mapping.dmp

Download
memory/988-2-0x00007FFA0F720000-0x00007FFA0FD57000-memory.dmp

Filesize
6.2MB

Download
memory/1376-5-0x0000000000000000-mapping.dmp

Download
memory/2116-9-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

Filesize
4KB

Download
memory/3480-3-0x0000000000000000-mapping.dmp

Download
memory/3480-4-0x0000000002640000-0x0000000002641000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads