17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b

Analysis

max time kernel
98s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 02:54

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General

Target

17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe
Size

192KB
MD5

6ad35ddb76fc57062bf65671f8539e09
SHA1

2c47593edd825af1b536a0c197d22bf1f402192c
SHA256

17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b
SHA512

0048d26402d908494d7622d84b49c9670ca04ee3657e4468caafa2edde8d46f07ec6a7042219827ac1666f8b1dc0a04467f09df704727d279730a918f56d2da1
SSDEEP

1536:+p9c72Oan2aaaaat031AdQWB5kCFrWszRUOHFlQhzyLwVKftfVBiZHAPloFp5A2:+dO2cW3kCFrWsF2eLbqx2AXFs89

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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe

Executes dropped EXE 1 IoCs

pid	Process
2188	ruudit.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	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ruudit = "C:\\Users\\Admin\\ruudit.exe /i"	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.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
2112	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe
2112	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2112	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe
2188	ruudit.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2188	2112	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe	89
PID 2112 wrote to memory of 2188	2112	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe	89
PID 2112 wrote to memory of 2188	2112	17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe	89

C:\Users\Admin\AppData\Local\Temp\17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.exe
"C:\Users\Admin\AppData\Local\Temp\17124758a34e3d416d860900b22a8363d1f6aa49d87a1af742ff86996886357b.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:2112
- C:\Users\Admin\ruudit.exe
  "C:\Users\Admin\ruudit.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2188

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

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Downloads

C:\Users\Admin\ruudit.exe

Filesize
192KB

MD5
4f8ff9a24a60d2af706eec57ad1c3baa

SHA1
3c45a9135b7d491ce80d03fbe07d8d9178b2935b

SHA256
bc6e47912018ee153023e3e7cbeafb728f6890af12612a01d73b9a06617a9740

SHA512
ad9b11749b26709ae31af681ad762bac06589357a3eb2344aa0fb6d80529db81fe45976be8ce2bc7b4c890241301143b136d3ff236ba73dff0d869160bdd53ae

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C:\Users\Admin\ruudit.exe

Filesize
192KB

MD5
4f8ff9a24a60d2af706eec57ad1c3baa

SHA1
3c45a9135b7d491ce80d03fbe07d8d9178b2935b

SHA256
bc6e47912018ee153023e3e7cbeafb728f6890af12612a01d73b9a06617a9740

SHA512
ad9b11749b26709ae31af681ad762bac06589357a3eb2344aa0fb6d80529db81fe45976be8ce2bc7b4c890241301143b136d3ff236ba73dff0d869160bdd53ae

Download Submit