164f30f3849b54f2e3c1aef75cfc9a9f4c6f39df382656ef3eac9d7d3b1d0f52

General

Target

figures-07.21.doc
Size

68KB
MD5

770a8bde63b2e589403e5ee9f3e4cc1a
SHA1

6e52cb2ffebde22b9a9870a8ea8b4e26922f9f22
SHA256

164f30f3849b54f2e3c1aef75cfc9a9f4c6f39df382656ef3eac9d7d3b1d0f52
SHA512

df95e8d07a4eef860653a9a9ab3272201ccbcba0a67a3ba918880da79df9dbece4ffac7b38ecfca33cf15bb6b2d1a42e93fd9692bbef5af05a40f2664d17e3a3

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:

cmd.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	3964	3908	cmd.exe	WINWORD.EXE

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3636 created 2072 3636 WerFault.exe mshta.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1228 2072 WerFault.exe mshta.exe
3636 2072 WerFault.exe mshta.exe

description	pid	process	target process
PID 3636 created 2072	3636	WerFault.exe	mshta.exe

pid	pid_target	process	target process
1228	2072	WerFault.exe	mshta.exe
3636	2072	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:

cmd.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings cmd.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

3908 WINWORD.EXE
3908 WINWORD.EXE

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

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe
1228	WerFault.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1228 WerFault.exe
Token: SeBackupPrivilege 1228 WerFault.exe
Token: SeDebugPrivilege 1228 WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1228	WerFault.exe
Token: SeBackupPrivilege	1228	WerFault.exe
Token: SeDebugPrivilege	1228	WerFault.exe

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

WINWORD.EXE

pid	process
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE
3908	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 3908 wrote to memory of 3964	3908	WINWORD.EXE	cmd.exe
PID 3908 wrote to memory of 3964	3908	WINWORD.EXE	cmd.exe
PID 3964 wrote to memory of 2072	3964	cmd.exe	mshta.exe
PID 3964 wrote to memory of 2072	3964	cmd.exe	mshta.exe
PID 3964 wrote to memory of 2072	3964	cmd.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\figures-07.21.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:3908

C:\Windows\SYSTEM32\cmd.exe
cmd /c c:\programdata\brI.hta
2⤵
- Process spawned unexpected child process
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3964

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\programdata\brI.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
PID:2072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 1388
4⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 564
4⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Program crash
PID:3636

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

3

T1082

Query Registry

2

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\programdata\brI.hta
MD5
8fcd0dbd0852a211a5e97560a3249f94

SHA1
608b8a74563be8a71d6f8b151fbce12a489cab79

SHA256
6b93a32417bedf141d0dc6488ce1a42f21ae06470eca19983c003a6a3901996f

SHA512
05ccb7739bee5b5563c8f1fb8fd1fe5e2c59dc1cd2a77f54809a27da81cfd6d964462f7da7e7817295ca12dd864b41549330d7d083b205eb19b6fb0fb9f7b757

Download Submit
memory/2072-252-0x0000000000000000-mapping.dmp

Download
memory/3908-117-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-114-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-119-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-118-0x00007FF8458D0000-0x00007FF8483F3000-memory.dmp

Filesize
43.1MB

Download
memory/3908-122-0x00007FF83F100000-0x00007FF8401EE000-memory.dmp

Filesize
16.9MB

Download
memory/3908-123-0x00007FF83D200000-0x00007FF83F0F5000-memory.dmp

Filesize
31.0MB

Download
memory/3908-116-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-115-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-345-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-346-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-348-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3908-347-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/3964-226-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads