21905e3b19ea3c56637b8c5315cbe422c78d7d8fa48ff6358057b305e748cbfb

General

Target

a60f00b0_by_Libranalysis.doc
Size

79KB
MD5

a60f00b085daf1454fc229164be49862
SHA1

71adf78e05ff5af07d9dd6154c1ea0695a013eb6
SHA256

21905e3b19ea3c56637b8c5315cbe422c78d7d8fa48ff6358057b305e748cbfb
SHA512

5194f26b1428ba7de66682bf9907c303024faed51797e8d6f4aefe0daf5b8a78727777930e00c1bed015477a4195f9d12cf84de320c7905596e99c17960394f8

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:

explorer.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	2184	624	explorer.exe	WINWORD.EXE

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4052 3208 WerFault.exe mshta.exe

pid	pid_target	process	target process
4052	3208	WerFault.exe	mshta.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\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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

Modifies registry class 1 IoCs

Processes:

explorer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

624 WINWORD.EXE
624 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe
4052	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 4052 WerFault.exe
Token: SeBackupPrivilege 4052 WerFault.exe
Token: SeDebugPrivilege 4052 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	4052	WerFault.exe
Token: SeBackupPrivilege	4052	WerFault.exe
Token: SeDebugPrivilege	4052	WerFault.exe

Suspicious use of SetWindowsHookEx 18 IoCs

Processes:

WINWORD.EXE

pid	process
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE
624	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WINWORD.EXEexplorer.exe

description	pid	process	target process
PID 624 wrote to memory of 2184	624	WINWORD.EXE	explorer.exe
PID 624 wrote to memory of 2184	624	WINWORD.EXE	explorer.exe
PID 2556 wrote to memory of 3208	2556	explorer.exe	mshta.exe
PID 2556 wrote to memory of 3208	2556	explorer.exe	mshta.exe
PID 2556 wrote to memory of 3208	2556	explorer.exe	mshta.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\a60f00b0_by_Libranalysis.doc" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:624

C:\Windows\explorer.exe
explorer c:\users\public\sizeTitleVariable.hta
2⤵
- Process spawned unexpected child process
PID:2184

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2556

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Public\sizeTitleVariable.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
2⤵
PID:3208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3208 -s 1320
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4052

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\sizeTitleVariable.hta
MD5
89839109321fbc3a3fe65e7ac7a2d04d

SHA1
70d35025dc06c3cfaae47b0ce3cd4883531afca2

SHA256
854714aa6bb0d8bd26a5c7ffbc3bcb394c828fdaa169711656e8349979e8b404

SHA512
2f6a6567b2743575b594f1f06382aed996b7d19aca0946a5828bdf294a6c4ed8e04703eba61344a4a99e0110ba2190d0ae2d1e06cc6eced79cbd565e0f0df740

Download Submit
memory/624-114-0x00007FFC8B990000-0x00007FFC8B9A0000-memory.dmp

Filesize
64KB

Download
memory/624-115-0x00007FFC8B990000-0x00007FFC8B9A0000-memory.dmp

Filesize
64KB

Download
memory/624-116-0x00007FFC8B990000-0x00007FFC8B9A0000-memory.dmp

Filesize
64KB

Download
memory/624-117-0x00007FFC8B990000-0x00007FFC8B9A0000-memory.dmp

Filesize
64KB

Download
memory/624-119-0x00007FFC8B990000-0x00007FFC8B9A0000-memory.dmp

Filesize
64KB

Download
memory/624-118-0x00007FFCAC400000-0x00007FFCAEF23000-memory.dmp

Filesize
43.1MB

Download
memory/624-122-0x00000271A1A60000-0x00000271A2B4E000-memory.dmp

Filesize
16.9MB

Download
memory/624-123-0x00007FFCA56C0000-0x00007FFCA75B5000-memory.dmp

Filesize
31.0MB

Download
memory/624-179-0x00000271B0B20000-0x00000271B0B24000-memory.dmp

Filesize
16KB

Download
memory/2184-180-0x0000000000000000-mapping.dmp

Download
memory/3208-182-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads