caef1c1bf021d8a6adbf6032e999aa68e1052014bdc8691dfbf182eeadc338f1

Analysis

max time kernel
119s
max time network
119s
platform
windows10_x64
resource
win10v20210410
submitted
26/05/2021, 20:32

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General

Target
betalingafvist.exe
Size 265KB
Sample210526-e27jdqh37e
SHA256 caef1c1bf021d8a6adbf6032e999aa68e1052014bdc8691dfbf182eeadc338f1
MD5 7aaa1f9e29bb36a06876c358699c9b9b
SHA1 3aca978ae25d6d48bd6e3cb8b840ac31e4e413a9
SHA512 8757c4875c929a2f1c9192dda5995bf65410c52197b5e1db4d7d83e28c345a7c85e045a95d209167f83fe3e9e55b150271030e14bbdf4975ab65faccc9db42e4
MD5 SHA1 SHA512

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
3948	betalingafvist.exe
3948	betalingafvist.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\tolevthxxsdr = "C:\\Users\\Admin\\AppData\\Roaming\\jhjlyke\\uogxqnlglnupp.exe"	betalingafvist.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3948 set thread context of 2424	3948	betalingafvist.exe	75

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
2424	MSBuild.exe
2424	MSBuild.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3948	betalingafvist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2424	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2424	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 2424	3948	betalingafvist.exe	75
PID 3948 wrote to memory of 2424	3948	betalingafvist.exe	75
PID 3948 wrote to memory of 2424	3948	betalingafvist.exe	75
PID 3948 wrote to memory of 2424	3948	betalingafvist.exe	75

C:\Users\Admin\AppData\Local\Temp\betalingafvist.exe
"C:\Users\Admin\AppData\Local\Temp\betalingafvist.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\betalingafvist.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2424

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

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Downloads

memory/2424-118-0x00000000032F0000-0x00000000032F1000-memory.dmp

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memory/2424-119-0x00000000032F1000-0x00000000032F2000-memory.dmp

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memory/2424-120-0x00000000032F2000-0x00000000032F3000-memory.dmp

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memory/3948-116-0x00000000004E0000-0x000000000058E000-memory.dmp

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