yunsip | 33c2fbbd37618977a004cb8d1094c0b30f9b986edc4cc91b86472daa8a85dcae

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 19:00

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General

Target

JaffaCakes118_1045795c737ffb0359ddc80529422419.dll
Size

233KB
MD5

1045795c737ffb0359ddc80529422419
SHA1

658cae2e0a6576ed9f72b70600018f163823f1e7
SHA256

33c2fbbd37618977a004cb8d1094c0b30f9b986edc4cc91b86472daa8a85dcae
SHA512

5e5f7bb123cff5b35940b8c0e288d833c5248e56d490a8c4dc1bc62581139cd7b3d073409c4229554a1e94d40b1e986bd843e6e288f8daeedbcff2f72de81a8d
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0m:jDgtfRQUHPw06MoV2nwTBlhm8O

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 7 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30
PID 2596 wrote to memory of 1460	2596	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1045795c737ffb0359ddc80529422419.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1045795c737ffb0359ddc80529422419.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1460

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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