105d9496d4f80ae5ef3c7642f55117b65a10398afe5ff9c30d706fa9873cfd6a

General

Target

sample.doc
Size

97KB
MD5

356a5c57245204778e4987ca33558603
SHA1

295160cddc9a18dc0809c547908e19e4272e01f3
SHA256

105d9496d4f80ae5ef3c7642f55117b65a10398afe5ff9c30d706fa9873cfd6a
SHA512

27b256f8c7c8eeed8b0bca491e92c75541b53c594e5f1e6f63d923eda9748939ae7aedac3e2be592801a36c6ff56fabb6cdd847116f97fff76422092a15d8670

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	1908	4796	cmd.exe	WINWORD.EXE

Blocklisted process makes network request 3 IoCs

Processes:

WScript.exe

flow pid process

15 4568 WScript.exe
17 4568 WScript.exe
19 4568 WScript.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	pid	process
15	4568	WScript.exe
17	4568	WScript.exe
19	4568	WScript.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-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings cmd.exe
Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

4796 WINWORD.EXE
4796 WINWORD.EXE

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

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

WINWORD.EXE

pid	process
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE
4796	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 4796 wrote to memory of 1908	4796	WINWORD.EXE	cmd.exe
PID 4796 wrote to memory of 1908	4796	WINWORD.EXE	cmd.exe
PID 1908 wrote to memory of 4568	1908	cmd.exe	WScript.exe
PID 1908 wrote to memory of 4568	1908	cmd.exe	WScript.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\sample.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:4796
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start C:\Users\Admin\AppData\Local\Temp\rtbdxsdcb.js
  2⤵
  - Process spawned unexpected child process
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\rtbdxsdcb.js"
    3⤵
    - Blocklisted process makes network request
    PID:4568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\rtbdxsdcb.js

MD5
e9f682952083ebba2e284c940777d659

SHA1
149b2c7ebc25d57132df7839ec2ae113c9fe8a01

SHA256
32437763a96d909d6103e0d374050c94f2f30fb7ce122ebb8dd7819146966438

SHA512
bbf170625271706a3789822073fe4cc79f4e7cd49b03ae840bb5acaec4a90c84492a0ad808aeb1d030eabd69b7f5a47411add3cc3db281a451bbfdb003a163c2

Download Submit
memory/1908-255-0x0000000000000000-mapping.dmp

Download
memory/4568-258-0x0000000000000000-mapping.dmp

Download
memory/4796-114-0x00007FFD6E7C0000-0x00007FFD6E7D0000-memory.dmp

Filesize
64KB

Download
memory/4796-115-0x00007FFD6E7C0000-0x00007FFD6E7D0000-memory.dmp

Filesize
64KB

Download
memory/4796-116-0x00007FFD6E7C0000-0x00007FFD6E7D0000-memory.dmp

Filesize
64KB

Download
memory/4796-117-0x00007FFD6E7C0000-0x00007FFD6E7D0000-memory.dmp

Filesize
64KB

Download
memory/4796-119-0x00007FFD6E7C0000-0x00007FFD6E7D0000-memory.dmp

Filesize
64KB

Download
memory/4796-118-0x00007FFD8FC40000-0x00007FFD92763000-memory.dmp

Filesize
43.1MB

Download
memory/4796-122-0x00007FFD8A4A0000-0x00007FFD8B58E000-memory.dmp

Filesize
16.9MB

Download
memory/4796-123-0x00007FFD885A0000-0x00007FFD8A495000-memory.dmp

Filesize
31.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads