ff70cb7fbe9723660b9a8e46ca828b31432be1abcd6fa372f934f0c702cfaeae

General

Target

comn701bul.dotm
Size

23KB
MD5

12f938b403dc7d335c21703b67d23f81
SHA1

24a2355e905f6f6328830506077033e789941fa4
SHA256

ff70cb7fbe9723660b9a8e46ca828b31432be1abcd6fa372f934f0c702cfaeae
SHA512

e37f7a0aecfbe4aedd2171f878a232f193643c8870dd1ba5aa3a121c8ad284f4181a3d45ff6a0b1856961699aa7a6795a6694dac803fe83bb7123781fb8c69cf
SSDEEP

384:tmt4EDRI4j9hk9Z2Z5Yt2vE9Ar6Fjle+gq1ei+4Nxt/ZtNNTNKXY1/Ln4Whcjqhm:q4uphhcXAr6Fjle+f7ZxllN/ddOWHg

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1420	MsUpdate.cpl

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

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

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

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

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1440	WINWORD.EXE
1440	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1420	MsUpdate.cpl
1420	MsUpdate.cpl

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE
1440	WINWORD.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 1420	1440	WINWORD.EXE	84
PID 1440 wrote to memory of 1420	1440	WINWORD.EXE	84
PID 1440 wrote to memory of 1420	1440	WINWORD.EXE	84
PID 1420 wrote to memory of 3588	1420	MsUpdate.cpl	86
PID 1420 wrote to memory of 3588	1420	MsUpdate.cpl	86
PID 1420 wrote to memory of 3588	1420	MsUpdate.cpl	86
PID 3588 wrote to memory of 3580	3588	cmd.exe	87
PID 3588 wrote to memory of 3580	3588	cmd.exe	87
PID 3588 wrote to memory of 3580	3588	cmd.exe	87

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\comn701bul.dotm" /o ""
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Users\Admin\AppData\Roaming\Microsoft\MsUpdate.cpl
  C:\Users\Admin\AppData\Roaming\Microsoft\MsUpdate.cpl
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c schtasks -create -tn "MicrosoftUpdateStatisticCore Task-S-1-5-21-2629973501-4017243118-3254762364-1000" /XML C:\Users\Admin\AppData\Roaming\Microsoft\Tsk.xml
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3588
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks -create -tn "MicrosoftUpdateStatisticCore Task-S-1-5-21-2629973501-4017243118-3254762364-1000" /XML C:\Users\Admin\AppData\Roaming\Microsoft\Tsk.xml
      4⤵
      PID:3580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\MsUpdate.cpl

Filesize
87KB

MD5
f512ab1d4a38bdfe39451bf678f6bbae

SHA1
f4d0be2ed6febb20b16e3cd0807a58c5efed7ea1

SHA256
601243aef0e2f9e945dc5ae5324517d31726f452acd54543cc106d691687710e

SHA512
d9c84b35f9b3504ca2214113e1325b44f13fd9b5171f8475789b935241316f335c14c9c80ef20aabc7236a21cb17e11ad5ebccff4f08d56f6c75f4c8e19c7bad

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\MsUpdate.cpl

Filesize
87KB

MD5
f512ab1d4a38bdfe39451bf678f6bbae

SHA1
f4d0be2ed6febb20b16e3cd0807a58c5efed7ea1

SHA256
601243aef0e2f9e945dc5ae5324517d31726f452acd54543cc106d691687710e

SHA512
d9c84b35f9b3504ca2214113e1325b44f13fd9b5171f8475789b935241316f335c14c9c80ef20aabc7236a21cb17e11ad5ebccff4f08d56f6c75f4c8e19c7bad

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Tsk.xml

Filesize
1KB

MD5
8d503de4bfa7a3df51772667b00c7720

SHA1
768de237b92796ad74f5aeb392ebe4302a32feab

SHA256
1ddc33fbec13a39e53946a319ac045908a28d191f326b600e81cf69e88d87488

SHA512
8e5de4984001cb2784f39d033b321fe537ecd376530748e0e7a4225eec1e907cdc181b0da529cee90ce70b52da06e42c2037f5f0be67950d7fb86a471fdbf349

Download Submit
memory/1440-133-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-137-0x00007FFBF3960000-0x00007FFBF3970000-memory.dmp

Filesize
64KB

Download
memory/1440-138-0x00007FFBF3960000-0x00007FFBF3970000-memory.dmp

Filesize
64KB

Download
memory/1440-136-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-134-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-135-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-132-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-146-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-147-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-148-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download
memory/1440-149-0x00007FFBF61B0000-0x00007FFBF61C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads