080a67d131facb8ce1207b2f2ac65d336aa328903f88ed8498ca3c0090a95205

Analysis

max time kernel
121s
max time network
160s
platform
windows10_x64
resource
win10-en
submitted
19/09/2021, 16:50

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General

Target
28765434580654245678098--0986545.exe
Size 514KB
Sample210919-vcan2sehcp
SHA256 080a67d131facb8ce1207b2f2ac65d336aa328903f88ed8498ca3c0090a95205
MD5 63cbb6adf270a32b4db26384ff31602a
SHA1 75a2a6b198005bfe3b9ac8f3f10cd3a9377de0f8
SHA512 67d3ca05c14ad9275f2ea687c16443db6f15e84c11560e6a4f77b1476ddf0cdc2321c36c4b1dca17a55bbee7922eca56f8e142875460bb6cff5b96f578e32965
MD5 SHA1 SHA512

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
4812	28765434580654245678098--0986545.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	MSBuild.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	MSBuild.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
9	freegeoip.app
10	freegeoip.app
7	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4812 set thread context of 4844	4812	28765434580654245678098--0986545.exe	69

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	MSBuild.exe
File created	C:\Windows\assembly\Desktop.ini	MSBuild.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	MSBuild.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 1 IoCs

pid	Process
4844	MSBuild.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4812	28765434580654245678098--0986545.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4844	MSBuild.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4844	4812	28765434580654245678098--0986545.exe	69
PID 4812 wrote to memory of 4844	4812	28765434580654245678098--0986545.exe	69
PID 4812 wrote to memory of 4844	4812	28765434580654245678098--0986545.exe	69
PID 4812 wrote to memory of 4844	4812	28765434580654245678098--0986545.exe	69

C:\Users\Admin\AppData\Local\Temp\28765434580654245678098--0986545.exe
"C:\Users\Admin\AppData\Local\Temp\28765434580654245678098--0986545.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\28765434580654245678098--0986545.exe"
  2⤵
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4844

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4844-117-0x00000000027C0000-0x00000000027C1000-memory.dmp

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