c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56

Analysis

max time kernel
240s
max time network
281s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 22:48

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General

Target

c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe
Size

88KB
MD5

9bc3a1ad095192159a453fa36e0080d2
SHA1

04af79c9b43d4208b01b4b888e96ab3c981c4ecd
SHA256

c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56
SHA512

3d36d1388aecae93d79d414a93d755709e145513764b54c903fb195b239847aeed9cafa50101c5a141cd0ea847422f78215f4ca6773ab5aecdac1adda2defc26
SSDEEP

768:7Ll9rFEGNu34C/lfQzxKztTp8KS5k+qIYvCdUwY7EqVN14+QCnq/K/7+z:7LlsGGloAztd8HtPY7DN14Oqi/7+z

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe

Executes dropped EXE 1 IoCs

pid	Process
3980	siuaqu.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\siuaqu = "C:\\Users\\Admin\\siuaqu.exe /f"	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.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 2 IoCs

pid	Process
3952	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe
3952	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3952	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe
3980	siuaqu.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3952 wrote to memory of 3980	3952	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe	83
PID 3952 wrote to memory of 3980	3952	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe	83
PID 3952 wrote to memory of 3980	3952	c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe	83

C:\Users\Admin\AppData\Local\Temp\c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe
"C:\Users\Admin\AppData\Local\Temp\c32b69c13858d662c1757234f4441b3c4c895d52e317a837584738eb2039bf56.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3952
- C:\Users\Admin\siuaqu.exe
  "C:\Users\Admin\siuaqu.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\siuaqu.exe

Filesize
88KB

MD5
56ec81c280bcae6a17dfb4842875599a

SHA1
0665d7d2703aafb338eebf74c6cee3ee53dff990

SHA256
3a140120a423f0979e13ebcc58449da17664ed03ba9277e76329d4667e2401f1

SHA512
0c0b1428d6a8ed1076220b13794620b1535bde010042299356550f43a6a54457512f066d988040cf88717836cc23e87302be39685575c07602565c5d0a250850

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C:\Users\Admin\siuaqu.exe

Filesize
88KB

MD5
56ec81c280bcae6a17dfb4842875599a

SHA1
0665d7d2703aafb338eebf74c6cee3ee53dff990

SHA256
3a140120a423f0979e13ebcc58449da17664ed03ba9277e76329d4667e2401f1

SHA512
0c0b1428d6a8ed1076220b13794620b1535bde010042299356550f43a6a54457512f066d988040cf88717836cc23e87302be39685575c07602565c5d0a250850

Download Submit