yunsip | 24a6418763849403333220016ed2641bb25bff1c0b2ec8396c87cba849e3aae1

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
16-08-2024 15:59

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General

Target

9f065c7ca12cfe1c25c3e9ee8c47b768_JaffaCakes118.dll
Size

139KB
MD5

9f065c7ca12cfe1c25c3e9ee8c47b768
SHA1

2b2e89553017946bfbf13ed11159d475b230c267
SHA256

24a6418763849403333220016ed2641bb25bff1c0b2ec8396c87cba849e3aae1
SHA512

b6355f56344e6bb0fc49b35df45ef18db66d4f5ef14441766539ef29898e2b41cab39743b452a44acac07188e3facd1bf3abdcb0dfb95c0bb200d1a6a0176a12
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0Z:jDgtfRQUHPw06MoV2nwTBlhm8B

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
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe
PID 1620 wrote to memory of 2096	1620	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f065c7ca12cfe1c25c3e9ee8c47b768_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1620

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9f065c7ca12cfe1c25c3e9ee8c47b768_JaffaCakes118.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2096

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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