ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729

General

Target

ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe
Size

213KB
MD5

6f83316fe200418a9f41da87e22130e0
SHA1

7649b7984725a12ed9e5b58ef01069e53891ee34
SHA256

ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729
SHA512

90528a90cc61c8a97885ce9217b6723d5d66291a4aa5fdbf32e4d743d33b0f45fed1696387ba33802307a483a7da0004def93779a2cfd4e9a5683338bb27d738
SSDEEP

6144:4u2urzh9xu/Xkau8w5ndxT3TK3pAF6p5Mk/5o/:4utrzh9xOXkXJdx323pAMp5MJ/

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
844	ui32.exe
268	ui32.exe

Loads dropped DLL 3 IoCs

pid	Process
1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe
1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe
844	ui32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	ui32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ui32.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ui32.exe"	ui32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 844 set thread context of 268	844	ui32.exe	28

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

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
844	ui32.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 1340 wrote to memory of 844	1340	ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe	27
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28
PID 844 wrote to memory of 268	844	ui32.exe	28

C:\Users\Admin\AppData\Local\Temp\ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe
"C:\Users\Admin\AppData\Local\Temp\ac120fa2467d9a3932f5a86bea24978f8713a4471a72bafb1719686f8f011729.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Users\Admin\AppData\Local\Temp\ui32.exe
  "C:\Users\Admin\AppData\Local\Temp\ui32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:844
- - C:\Users\Admin\AppData\Local\Temp\ui32.exe
    "C:\Users\Admin\AppData\Local\Temp\ui32.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    PID:268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

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\n402.dll

Filesize
27B

MD5
b33236ec368a53794beb8f44c4128f79

SHA1
3eac83232a5a5cd6f42551814aae6df92888b8b6

SHA256
e0f1d608da176665300fcf58467d6bddcbe19fa12600cc0fdbf2ee96b8ed7f37

SHA512
05dd97eefd9fe024cd5bc69bb173105d13de8794bcbfa8bc77d925e7e21435cebdbb77f9a8747eaef4a50dd7276ea48513ea5f26f787242ace4494ebec9683f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\ui32.exe

Filesize
228KB

MD5
728c6f049387e93974a39b1b95ff72e7

SHA1
502b06ca3baa78a5455ae3f361d0a375e7f1b902

SHA256
468a7b9570cab75742ee59489ab1f2ddd861c1214f27524ad0eaecb9ee6b82c4

SHA512
e60eb0ae77384758c42ce128016cc615cbcc33cb71462c1749ad001f00ecdb2afbfa7807eba568700f9bb64bf4940d9354440576acfdb989f2b27371dc68d32c

Download Submit
C:\Users\Admin\AppData\Local\Temp\ui32.exe

Filesize
228KB

MD5
728c6f049387e93974a39b1b95ff72e7

SHA1
502b06ca3baa78a5455ae3f361d0a375e7f1b902

SHA256
468a7b9570cab75742ee59489ab1f2ddd861c1214f27524ad0eaecb9ee6b82c4

SHA512
e60eb0ae77384758c42ce128016cc615cbcc33cb71462c1749ad001f00ecdb2afbfa7807eba568700f9bb64bf4940d9354440576acfdb989f2b27371dc68d32c

Download Submit
C:\Users\Admin\AppData\Local\Temp\ui32.exe

Filesize
228KB

MD5
728c6f049387e93974a39b1b95ff72e7

SHA1
502b06ca3baa78a5455ae3f361d0a375e7f1b902

SHA256
468a7b9570cab75742ee59489ab1f2ddd861c1214f27524ad0eaecb9ee6b82c4

SHA512
e60eb0ae77384758c42ce128016cc615cbcc33cb71462c1749ad001f00ecdb2afbfa7807eba568700f9bb64bf4940d9354440576acfdb989f2b27371dc68d32c

Download Submit
\Users\Admin\AppData\Local\Temp\ui32.exe

Filesize
228KB

MD5
728c6f049387e93974a39b1b95ff72e7

SHA1
502b06ca3baa78a5455ae3f361d0a375e7f1b902

SHA256
468a7b9570cab75742ee59489ab1f2ddd861c1214f27524ad0eaecb9ee6b82c4

SHA512
e60eb0ae77384758c42ce128016cc615cbcc33cb71462c1749ad001f00ecdb2afbfa7807eba568700f9bb64bf4940d9354440576acfdb989f2b27371dc68d32c

Download Submit
\Users\Admin\AppData\Local\Temp\ui32.exe

Filesize
228KB

MD5
728c6f049387e93974a39b1b95ff72e7

SHA1
502b06ca3baa78a5455ae3f361d0a375e7f1b902

SHA256
468a7b9570cab75742ee59489ab1f2ddd861c1214f27524ad0eaecb9ee6b82c4

SHA512
e60eb0ae77384758c42ce128016cc615cbcc33cb71462c1749ad001f00ecdb2afbfa7807eba568700f9bb64bf4940d9354440576acfdb989f2b27371dc68d32c

Download Submit
\Users\Admin\AppData\Local\Temp\ui32.exe

Filesize
228KB

MD5
728c6f049387e93974a39b1b95ff72e7

SHA1
502b06ca3baa78a5455ae3f361d0a375e7f1b902

SHA256
468a7b9570cab75742ee59489ab1f2ddd861c1214f27524ad0eaecb9ee6b82c4

SHA512
e60eb0ae77384758c42ce128016cc615cbcc33cb71462c1749ad001f00ecdb2afbfa7807eba568700f9bb64bf4940d9354440576acfdb989f2b27371dc68d32c

Download Submit
memory/268-65-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/268-68-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/268-70-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/268-74-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/268-72-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/268-75-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/268-77-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/844-62-0x0000000000586000-0x00000000005AC000-memory.dmp

Filesize
152KB

Download
memory/1340-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download

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