yunsip | 8f74a17dfcb760be10089972da2b355916654e32dfa05d0d2d0c5fda0731462e

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-01-2025 01:01

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General

Target

JaffaCakes118_26e5a798b9ada7ec30e5827233420289.dll
Size

295KB
MD5

26e5a798b9ada7ec30e5827233420289
SHA1

60612dd00fc809443e08d311e91b49562a9b2e19
SHA256

8f74a17dfcb760be10089972da2b355916654e32dfa05d0d2d0c5fda0731462e
SHA512

f961f02c8ed1baf7404cdf387f1c074b54a65ab5795c74e68c3016766072736900e49674d37b80eb53daae46d3a13618f3b2990b8075ebf192a2ec1da483ddca
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0P:jDgtfRQUHPw06MoV2nwTBlhm83

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 1668 wrote to memory of 2108	1668	rundll32.exe	31
PID 1668 wrote to memory of 2108	1668	rundll32.exe	31
PID 1668 wrote to memory of 2108	1668	rundll32.exe	31
PID 1668 wrote to memory of 2108	1668	rundll32.exe	31
PID 1668 wrote to memory of 2108	1668	rundll32.exe	31
PID 1668 wrote to memory of 2108	1668	rundll32.exe	31
PID 1668 wrote to memory of 2108	1668	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26e5a798b9ada7ec30e5827233420289.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_26e5a798b9ada7ec30e5827233420289.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108

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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