yunsip | cbb7adffb3c49563956c1a7911ec6e10489145fe83b6d285ceebde6c65b3d803

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 16:04

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General

Target

JaffaCakes118_7a93dd0ee1d818a710285ca820b7da40.dll
Size

643KB
MD5

7a93dd0ee1d818a710285ca820b7da40
SHA1

0c0014829a2c81c28fbb7ade008112a25bbaaaa6
SHA256

cbb7adffb3c49563956c1a7911ec6e10489145fe83b6d285ceebde6c65b3d803
SHA512

af2f0f27777b20ce03dbff3c7e09b68fe96e811321f3774f3b1a468cb2db75a5416f7be88271deb6b37e349a98e7350497f1d4a11466d029cf1ca429fa67f76f
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 2188 wrote to memory of 2308	2188	rundll32.exe	30
PID 2188 wrote to memory of 2308	2188	rundll32.exe	30
PID 2188 wrote to memory of 2308	2188	rundll32.exe	30
PID 2188 wrote to memory of 2308	2188	rundll32.exe	30
PID 2188 wrote to memory of 2308	2188	rundll32.exe	30
PID 2188 wrote to memory of 2308	2188	rundll32.exe	30
PID 2188 wrote to memory of 2308	2188	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a93dd0ee1d818a710285ca820b7da40.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a93dd0ee1d818a710285ca820b7da40.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2308

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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