09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa

General

Target

09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe
Size

462KB
MD5

5a45ea4ccb7b60d4a9f953aa07ec3920
SHA1

cec0b356bc0a958bdc217553bedef0a0e9e362cd
SHA256

09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa
SHA512

b61f0e801b3169e69b3ff2c3af582c33c515b687906ca755216227154cfb1bda61b670b33f8aa9345f4e3d61006b8778ed44a4cad68e76c7492b9567c04d32a1
SSDEEP

6144:zRPu8zwNAZYCZrIik3tHZhQQ6r4JzearccP8/Fl1q2OjMKrkwGxzsH5f:zJrIik3pIr4JKarcU8D1q270x9

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1856	6826.tmp

Loads dropped DLL 1 IoCs

pid	Process
1708	09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
844	WINWORD.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1856	6826.tmp

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
844	WINWORD.EXE
844	WINWORD.EXE
844	WINWORD.EXE
844	WINWORD.EXE
844	WINWORD.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1856	1708	09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe	26
PID 1708 wrote to memory of 1856	1708	09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe	26
PID 1708 wrote to memory of 1856	1708	09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe	26
PID 1708 wrote to memory of 1856	1708	09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe	26
PID 1856 wrote to memory of 844	1856	6826.tmp	27
PID 1856 wrote to memory of 844	1856	6826.tmp	27
PID 1856 wrote to memory of 844	1856	6826.tmp	27
PID 1856 wrote to memory of 844	1856	6826.tmp	27

C:\Users\Admin\AppData\Local\Temp\09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe
"C:\Users\Admin\AppData\Local\Temp\09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\6826.tmp
  "C:\Users\Admin\AppData\Local\Temp\6826.tmp" --helpC:\Users\Admin\AppData\Local\Temp\09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.exe F16CCC547E76D9C3D843181D820568CADD8A90140BAE1F6DCAF7B5A067A78343D9E8038E45549D8997D3B955781A088554089E614BE87A67D195F3C168744B11
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:1856
- - C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.docx"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\09a441a07435c5b274bd1703bddc91886e5794ff4fccb2b4746b1c38a4788afa.docx

Filesize
21KB

MD5
7079891932a64f097abafd233055a1e9

SHA1
246d95feafe67689d49a5a4cadba18d3ac1914e5

SHA256
c97189b50e5e92be09966d4732b6d61a2e435b2935d60c09989e555ae442e7a1

SHA512
6e9ee6427d7cc2474dc634b088cf3f35d06dfb734d2b63fbbc794f4083b4b5754379daff4804bf5024b1b430aa5e50fa6d839d3473ceeed3043d373c85e9862a

Download Submit
C:\Users\Admin\AppData\Local\Temp\6826.tmp

Filesize
462KB

MD5
cf3482812ddb13e93c1c21e556d5024c

SHA1
233e1236846ec226e2a66a8e58d66045a30004f9

SHA256
8fb37fe0d06842314dcb90159c66cfd8e1f0d9b653d5667a35e844ec93ad4834

SHA512
20a415db1e87e5b85b53788075691ff9fa18f4f7d3ceaaf3021af79733c6b106996f6af9cc17059414beedcf2b7273c8f06057eb56ea7c7cc1f0f057eea8cd85

Download Submit
\Users\Admin\AppData\Local\Temp\6826.tmp

Filesize
462KB

MD5
cf3482812ddb13e93c1c21e556d5024c

SHA1
233e1236846ec226e2a66a8e58d66045a30004f9

SHA256
8fb37fe0d06842314dcb90159c66cfd8e1f0d9b653d5667a35e844ec93ad4834

SHA512
20a415db1e87e5b85b53788075691ff9fa18f4f7d3ceaaf3021af79733c6b106996f6af9cc17059414beedcf2b7273c8f06057eb56ea7c7cc1f0f057eea8cd85

Download Submit
memory/844-59-0x0000000072781000-0x0000000072784000-memory.dmp

Filesize
12KB

Download
memory/844-60-0x0000000070201000-0x0000000070203000-memory.dmp

Filesize
8KB

Download
memory/844-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/844-62-0x00000000711ED000-0x00000000711F8000-memory.dmp

Filesize
44KB

Download
memory/1856-57-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download

Analysis

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