yunsip | feb0b3426cae63c3fb8dee24101741ed65c366948e2494eeb161f2a790cf1e8b

Analysis

max time kernel
100s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 09:19

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General

Target

b7b83f78ec33ccaa600deb9fa1a3fe20N.dll
Size

509KB
MD5

b7b83f78ec33ccaa600deb9fa1a3fe20
SHA1

92c5b3131748995aa6a4657d5783143f657f9b3b
SHA256

feb0b3426cae63c3fb8dee24101741ed65c366948e2494eeb161f2a790cf1e8b
SHA512

71720dea439c18ce56d0777fe13cb486db70ad415eb55358f51bdbedae6539708746955d1b61f50d2dd9b9f280d386a19bc5e07cd83486049dd56cbc4253527c
SSDEEP

3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZD+:o6C5AXbMn7UI1FoV2gwTBlrIckPo

Score

10^/10

yunsip banker discovery trojan

Malware Config

Signatures

Yunsip
Remote backdoor which communicates with a C2 server to receive commands.
trojan banker yunsip
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2032 wrote to memory of 3424	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 3424	2032	rundll32.exe	rundll32.exe
PID 2032 wrote to memory of 3424	2032	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7b83f78ec33ccaa600deb9fa1a3fe20N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b7b83f78ec33ccaa600deb9fa1a3fe20N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:3424

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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