f1b68ba10435e560511fad7b9fc1f9e3d194ee4f633dc7f7c5a7c94db86314e0

General

Target

document-05.21.doc
Size

79KB
MD5

a14195c0b5228bdd64f6364af8fce367
SHA1

f27ec771c7b93a4fbef684e38acf9afcc37a1a61
SHA256

f1b68ba10435e560511fad7b9fc1f9e3d194ee4f633dc7f7c5a7c94db86314e0
SHA512

dd693b6573a7bcc01900b143d272613f4729f11fe13e5feb70f6e8bc2bfb826a9e3684b490b9cd20de625e164982a55dcb732b4cec8165073e13055f924e5057

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	3208	3952	explorer.exe	WINWORD.EXE

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3768 created 1320 3768 WerFault.exe mshta.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

3908 1320 WerFault.exe mshta.exe
3768 1320 WerFault.exe mshta.exe

description	pid	process	target process
PID 3768 created 1320	3768	WerFault.exe	mshta.exe

pid	pid_target	process	target process
3908	1320	WerFault.exe	mshta.exe
3768	1320	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
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

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-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings explorer.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3952 WINWORD.EXE
3952 WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe
3908	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3908 WerFault.exe
Token: SeBackupPrivilege 3908 WerFault.exe
Token: SeDebugPrivilege 3908 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	3908	WerFault.exe
Token: SeBackupPrivilege	3908	WerFault.exe
Token: SeDebugPrivilege	3908	WerFault.exe

Suspicious use of SetWindowsHookEx 19 IoCs

Processes:

WINWORD.EXE

pid	process
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE
3952	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WINWORD.EXEexplorer.exe

description	pid	process	target process
PID 3952 wrote to memory of 3208	3952	WINWORD.EXE	explorer.exe
PID 3952 wrote to memory of 3208	3952	WINWORD.EXE	explorer.exe
PID 3876 wrote to memory of 1320	3876	explorer.exe	mshta.exe
PID 3876 wrote to memory of 1320	3876	explorer.exe	mshta.exe
PID 3876 wrote to memory of 1320	3876	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\document-05.21.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:3952

C:\Windows\explorer.exe
explorer c:\users\public\namespaceLinkReference.hta
2⤵
- Process spawned unexpected child process
PID:3208

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3876

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Public\namespaceLinkReference.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
2⤵
PID:1320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1324
3⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1320 -s 1640
3⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
PID:3768

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Public\namespaceLinkReference.hta
MD5
ae2e1dfb7003f9203cb4ee1e140b1303

SHA1
c9de2d6745dbee602f9b099f32baeecbdac98de3

SHA256
bba2347a55441c90a77784b0eaa58646c442ae3ecca6fe1beab644ab5ee770a5

SHA512
80a1823f8143c57efb20f00c8749baf411428438886d835febcf98d4b52372af35c27ecdf1e6e1e406f978de4c497613f5591f47b0bd399770f96ab70c445b5e

Download Submit
memory/1320-182-0x0000000000000000-mapping.dmp

Download
memory/3208-179-0x0000000000000000-mapping.dmp

Download
memory/3952-114-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3952-115-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3952-116-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3952-117-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3952-119-0x00007FFA08250000-0x00007FFA08260000-memory.dmp

Filesize
64KB

Download
memory/3952-118-0x00007FFA29EA0000-0x00007FFA2C9C3000-memory.dmp

Filesize
43.1MB

Download
memory/3952-122-0x00007FFA22F50000-0x00007FFA2403E000-memory.dmp

Filesize
16.9MB

Download
memory/3952-123-0x00007FFA21050000-0x00007FFA22F45000-memory.dmp

Filesize
31.0MB

Download
memory/3952-180-0x0000026D62250000-0x0000026D62254000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads