yunsip | 3b43d8171dea4c2dc9a9c25ddc3f3dad60a38d93a542921025b2651f677817da | Triage

Analysis

max time kernel
3s
max time network
8s
platform
windows7_x64
resource
win7v20201028
submitted
08-11-2020 18:14

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General

Target

3b43d8171dea4c2dc9a9c25ddc3f3dad60a38d93a542921025b2651f677817da.dll
Size

901KB
MD5

6885e2c5bf5cfc0f8aa52b7cb9cbb912
SHA1

837e0a0b0613ea6cfc65e3ce648b48a72397662d
SHA256

3b43d8171dea4c2dc9a9c25ddc3f3dad60a38d93a542921025b2651f677817da
SHA512

ce164db185fec2bd375a873b388875f82fac5f10c5abc8158c48f0221c167f5242b03af09213c767f2cf7ef16a2a0e56f9b02c84c0278c135b9d98d31fa9546d

Score

10^/10

yunsip banker trojan

Malware Config

Signatures

Yunsip
Remote backdoor which communicates with a C2 server to receive commands.
trojan banker yunsip

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe
PID 292 wrote to memory of 1196	292	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b43d8171dea4c2dc9a9c25ddc3f3dad60a38d93a542921025b2651f677817da.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:292

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3b43d8171dea4c2dc9a9c25ddc3f3dad60a38d93a542921025b2651f677817da.dll,#1
2⤵
PID:1196

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1196-0-0x0000000000000000-mapping.dmp

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