yunsip | aa390521729f1865b325672122fb504b559e46e9211b82eb0f0ce43e00a85a08

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 08:16

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General

Target

JaffaCakes118_78a219035ce59321c30c2297fb34dbdf.dll
Size

171KB
MD5

78a219035ce59321c30c2297fb34dbdf
SHA1

7565648f6f8fe67cc0684d39448f1ae8b878259c
SHA256

aa390521729f1865b325672122fb504b559e46e9211b82eb0f0ce43e00a85a08
SHA512

55f398da37f69b538189beb7d1ebcae9bab099ed3103c4d5a1245858f5fce6ec4c3ba3e73ecdf7396d881402ddb1843eb32f328fc9065707bbe56d2e282f0da4
SSDEEP

3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDx:o6C5AXbMn7UI1FoV2gwTBlrIckP/

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
Yunsip family
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

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 2792	4816	rundll32.exe	83
PID 4816 wrote to memory of 2792	4816	rundll32.exe	83
PID 4816 wrote to memory of 2792	4816	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78a219035ce59321c30c2297fb34dbdf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78a219035ce59321c30c2297fb34dbdf.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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