331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8

General

Target

331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
Size

809KB
MD5

4de339ceceaaecbaa3d7d9ee12774ec0
SHA1

d9b8919c0868b7e34cbd7853486482cd805e4912
SHA256

331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8
SHA512

3f1339abea21f027380e9ae8671529e63472487b7f5cc376a5e6cbc027d5302e1637f2075871d7335163d6c02d2e4333ccb1f811aa9d54122dccdd009da1ff64
SSDEEP

12288:0H7Wcjdc/r2sxxiPGGAOOPSXDV8ClgVYhX5FSsf8QI6raeH4lviM3Z7b:0bCj2sObHtqQ4QI6lH4lqM3Z7b

Score

8^/10

persistence

Malware Config

Signatures

Adds policy 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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\39645 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msohuunq.com"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1112	svchost.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1620 set thread context of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\msohuunq.com	svchost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28
PID 1620 wrote to memory of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28
PID 1620 wrote to memory of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28
PID 1620 wrote to memory of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28
PID 1620 wrote to memory of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28
PID 1620 wrote to memory of 732	1620	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	28
PID 732 wrote to memory of 1112	732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	29
PID 732 wrote to memory of 1112	732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	29
PID 732 wrote to memory of 1112	732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	29
PID 732 wrote to memory of 1112	732	331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe	29

C:\Users\Admin\AppData\Local\Temp\331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
"C:\Users\Admin\AppData\Local\Temp\331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Users\Admin\AppData\Local\Temp\331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe
  "C:\Users\Admin\AppData\Local\Temp\331dfdf31cd1f922b8d15b20dd53e36101dd664db71ea79d290e91d6f8fe98b8.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:732
- - C:\Windows\syswow64\svchost.exe
    C:\Windows\syswow64\svchost.exe
    3⤵
    - Adds policy Run key to start application
    - Deletes itself
    - Drops file in Program Files directory
    PID:1112

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

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/732-56-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/732-55-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/732-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1112-61-0x00000000008B0000-0x00000000008B8000-memory.dmp

Filesize
32KB

Download
memory/1112-62-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1112-63-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1620-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download

Analysis

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