yunsip | a402fbca905611db3b8d3e0e518ed70edcc71dd3703ed6594f244aad5e5ec309 | Triage

Analysis

max time kernel
8s
max time network
48s
platform
windows7_x64
resource
win7v20210408
submitted
18-05-2021 07:47

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General

Target

a402fbca905611db3b8d3e0e518ed70edcc71dd3703ed6594f244aad5e5ec309.dll
Size

741KB
MD5

7c883afb9db0ab9dc3eda06afdfab410
SHA1

9bc87095631020e6facf6d7544e8cb4354b5ba4b
SHA256

a402fbca905611db3b8d3e0e518ed70edcc71dd3703ed6594f244aad5e5ec309
SHA512

7ac83d5ae8a45c4bea6c1f5b179926fe12881105c7e6531f7d4774197782304d87ab007aa078649f1ff5aba25c26ebf5c2d19d9e9c3ebd861a701fcf31263a86

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 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe
PID 1860 wrote to memory of 2040	1860	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a402fbca905611db3b8d3e0e518ed70edcc71dd3703ed6594f244aad5e5ec309.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1860

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a402fbca905611db3b8d3e0e518ed70edcc71dd3703ed6594f244aad5e5ec309.dll,#1
2⤵
PID:2040

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2040-60-0x0000000000000000-mapping.dmp

Download
memory/2040-61-0x0000000075B31000-0x0000000075B33000-memory.dmp

Filesize
8KB

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