yunsip | c63bfdfe17bfea3b460e88d83fe1a5332c70f1cdf6fb10bcbfdf307e65c65bc0

Analysis

max time kernel
15s
max time network
20s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 16:07

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General

Target

JaffaCakes118_6dd18a4151348b84c1c4d428a6231e70.dll
Size

642KB
MD5

6dd18a4151348b84c1c4d428a6231e70
SHA1

26cee3aee8d2c5393a52472122ee8baeaa40cd18
SHA256

c63bfdfe17bfea3b460e88d83fe1a5332c70f1cdf6fb10bcbfdf307e65c65bc0
SHA512

bd1f8ede9cc48ac208f5e179e27267658853691ad463cd17d65ef2fbe5ef1e6552c479fa692e8d2f962fea72c6d1829eda1b9c9f504ebf8d4572d24cb3ec8e06
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0h:jDgtfRQUHPw06MoV2nwTBlhm85

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 1176 wrote to memory of 2028	1176	rundll32.exe	29
PID 1176 wrote to memory of 2028	1176	rundll32.exe	29
PID 1176 wrote to memory of 2028	1176	rundll32.exe	29
PID 1176 wrote to memory of 2028	1176	rundll32.exe	29
PID 1176 wrote to memory of 2028	1176	rundll32.exe	29
PID 1176 wrote to memory of 2028	1176	rundll32.exe	29
PID 1176 wrote to memory of 2028	1176	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dd18a4151348b84c1c4d428a6231e70.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1176
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6dd18a4151348b84c1c4d428a6231e70.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2028

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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