e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

General

Target

e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Size

356KB
MD5

79a554823940bc8c9531f604feeb47e7
SHA1

f1890f39483b3f44a0cecbb4bfd47832f0239409
SHA256

e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02
SHA512

ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7
SSDEEP

6144:dlVvgjhQMWekPQRacktlIgAm75bOvGXbPUMp3l8gUAqh+urdA:dl2OMWbQRCjbM6Bq7A

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	boouwud.exe

Executes dropped EXE 1 IoCs

pid	Process
2424	boouwud.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	boouwud.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\boouwud = "C:\\Users\\Admin\\boouwud.exe /r"	boouwud.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\boouwud = "C:\\Users\\Admin\\boouwud.exe /d"	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{35C40125-3034-41EE-9E30-5AA563AA0B2F}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{04E09CAD-A28B-4E82-A278-6F6C3CDFD3FA}.catalogItem	svchost.exe

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

System Information Discovery
T1082

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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\Local Settings	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1544	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
1544	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
2424	boouwud.exe
2424	boouwud.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1544	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
2424	boouwud.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 2424	1544	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	75
PID 1544 wrote to memory of 2424	1544	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	75
PID 1544 wrote to memory of 2424	1544	e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe	75

C:\Users\Admin\AppData\Local\Temp\e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe
"C:\Users\Admin\AppData\Local\Temp\e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Users\Admin\boouwud.exe
  "C:\Users\Admin\boouwud.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2424

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:4588

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\boouwud.exe

Filesize
356KB

MD5
79a554823940bc8c9531f604feeb47e7

SHA1
f1890f39483b3f44a0cecbb4bfd47832f0239409

SHA256
e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

SHA512
ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7

Download Submit
C:\Users\Admin\boouwud.exe

Filesize
356KB

MD5
79a554823940bc8c9531f604feeb47e7

SHA1
f1890f39483b3f44a0cecbb4bfd47832f0239409

SHA256
e1e79a114929928f2dae6a3a7c16a7a4a9f9196a9885105ae0f422ef2acdea02

SHA512
ab75616d1b9d93abeda388caece14bea73747923904582000aec049575e2fc3f376a48055b319470e92536ecec55ac3b249ddfab8556306e8e0ab259e51197f7

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads