yunsip | 4648630889ae4e3ac11ffeb0b7f31e53a0c69e8de90da43d886f482536cfabc0

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 04:12

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General

Target

JaffaCakes118_778d65bdb5b29966600cfe7b030164f0.dll
Size

419KB
MD5

778d65bdb5b29966600cfe7b030164f0
SHA1

f7743932cfeb67885126a53ffa5f8d2583a08451
SHA256

4648630889ae4e3ac11ffeb0b7f31e53a0c69e8de90da43d886f482536cfabc0
SHA512

036640bb477d8a38b38d1e882bd8312268efb959871c47a2785615d394d05d7e32aece6a5409ec8dc5b3b6f0cfe004c65f28a782bc55f88259d689ca34b0bebc
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0R:jDgtfRQUHPw06MoV2nwTBlhm8p

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 2096 wrote to memory of 2592	2096	rundll32.exe	30
PID 2096 wrote to memory of 2592	2096	rundll32.exe	30
PID 2096 wrote to memory of 2592	2096	rundll32.exe	30
PID 2096 wrote to memory of 2592	2096	rundll32.exe	30
PID 2096 wrote to memory of 2592	2096	rundll32.exe	30
PID 2096 wrote to memory of 2592	2096	rundll32.exe	30
PID 2096 wrote to memory of 2592	2096	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_778d65bdb5b29966600cfe7b030164f0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_778d65bdb5b29966600cfe7b030164f0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2592

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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