yunsip | 24bfa02cd43c8bc8b70440d8b92637da31572abe9a077e755e9ad6a9d28bee84

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-02-2025 04:32

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General

Target

JaffaCakes118_10405690b6cdaad419994df13020da43.dll
Size

374KB
MD5

10405690b6cdaad419994df13020da43
SHA1

40a6906819c1407b2426fb0f30d72e96cc4dd8d9
SHA256

24bfa02cd43c8bc8b70440d8b92637da31572abe9a077e755e9ad6a9d28bee84
SHA512

12f2f91bfd22cf46380e1a76e8783f38f40bb83888d9ee1263b1d4291d9d9959de1d599d5fc204d19a2fcc0a391bbf4ae917fe9e5ff4e734386a8b3d3da06061
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0K:jDgtfRQUHPw06MoV2nwTBlhm8i

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 2164 wrote to memory of 2064	2164	rundll32.exe	30
PID 2164 wrote to memory of 2064	2164	rundll32.exe	30
PID 2164 wrote to memory of 2064	2164	rundll32.exe	30
PID 2164 wrote to memory of 2064	2164	rundll32.exe	30
PID 2164 wrote to memory of 2064	2164	rundll32.exe	30
PID 2164 wrote to memory of 2064	2164	rundll32.exe	30
PID 2164 wrote to memory of 2064	2164	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_10405690b6cdaad419994df13020da43.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_10405690b6cdaad419994df13020da43.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2064

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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