yunsip | bd618475bb5698ce992cd42a82815e2880a598c0304ee078cd9919572efe3066

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 08:32

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General

Target

JaffaCakes118_1fad4b1e6d77381ad591222233a3a121.dll
Size

335KB
MD5

1fad4b1e6d77381ad591222233a3a121
SHA1

1fb205ff8415934a8a26f2ca66bc35e036f1b76b
SHA256

bd618475bb5698ce992cd42a82815e2880a598c0304ee078cd9919572efe3066
SHA512

b57cf3615cb999d09528720faf9e155033076dda79bf56a36857d4d53a542fc26e2d5f17ca932ff273be69c5ae72827bcc273a69429e994277d3396cbb16024f
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q06:jDgtfRQUHPw06MoV2nwTBlhm8S

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 2756 wrote to memory of 2768	2756	rundll32.exe	30
PID 2756 wrote to memory of 2768	2756	rundll32.exe	30
PID 2756 wrote to memory of 2768	2756	rundll32.exe	30
PID 2756 wrote to memory of 2768	2756	rundll32.exe	30
PID 2756 wrote to memory of 2768	2756	rundll32.exe	30
PID 2756 wrote to memory of 2768	2756	rundll32.exe	30
PID 2756 wrote to memory of 2768	2756	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fad4b1e6d77381ad591222233a3a121.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1fad4b1e6d77381ad591222233a3a121.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2768

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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