57bcdee4cc181db0c6671ccdd70a978bc4fa752bd6bfc9557be713539127baee

Analysis

max time kernel
102s
max time network
112s
platform
windows10_x64
resource
win10v20210410
submitted
16/06/2021, 10:56

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
090000090.exe
Size 488KB
Sample210616-7z9ntn3g4e
SHA256 57bcdee4cc181db0c6671ccdd70a978bc4fa752bd6bfc9557be713539127baee
MD5 c006190fa78ccb993ec371958b78ab54
SHA1 1001769cdccd9470c8e627c8fc4027540b649a95
SHA512 76edca41b4fd9a5df1424ec0ebc8d550c09a1f41a001d139cb7fed5698c5eca64c93465ba659ba0d00d5bbf077796da58f25f7efdb47771cae7985089ce0e5e4
MD5 SHA1 SHA512

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
3560	090000090.exe
3560	090000090.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\wchisvvncbwlg = "C:\\Users\\Admin\\AppData\\Roaming\\ydwuhieedqhgjq\\xcccmoavpvojii.exe"	090000090.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	checkip.dyndns.org
12	freegeoip.app
13	freegeoip.app

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3560 set thread context of 992	3560	090000090.exe	73

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 9 IoCs

pid	Process
3560	090000090.exe
3560	090000090.exe
3560	090000090.exe
3560	090000090.exe
3560	090000090.exe
3560	090000090.exe
3560	090000090.exe
3560	090000090.exe
992	MSBuild.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3560	090000090.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	992	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3560 wrote to memory of 992	3560	090000090.exe	73
PID 3560 wrote to memory of 992	3560	090000090.exe	73
PID 3560 wrote to memory of 992	3560	090000090.exe	73
PID 3560 wrote to memory of 992	3560	090000090.exe	73

C:\Users\Admin\AppData\Local\Temp\090000090.exe
"C:\Users\Admin\AppData\Local\Temp\090000090.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3560
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\090000090.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/992-117-0x0000000002D30000-0x0000000002D31000-memory.dmp

Download