yunsip | 4d5af04f1429871f086073d3a493fbe50282bbe537d90d8efa1777d7cafe6da8

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
15-01-2025 00:15

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General

Target

4d5af04f1429871f086073d3a493fbe50282bbe537d90d8efa1777d7cafe6da8.dll
Size

1005KB
MD5

a7819b2c075a7bfb82200dc24bfaac13
SHA1

3dfe444361c8fea6b55661ecf917e6061a7664a3
SHA256

4d5af04f1429871f086073d3a493fbe50282bbe537d90d8efa1777d7cafe6da8
SHA512

0ca4b41e759a1455b5f3bf49aeb3691133f655824ab6329fd91e587dbc451c1bc3575c77d1c8f7fdbf54317c7d619a90049e9563b5e55e0fa1bb0e5b09bf17cf
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0Q:jDgtfRQUHPw06MoV2nwTBlhm84

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 2380 wrote to memory of 2272	2380	rundll32.exe	30
PID 2380 wrote to memory of 2272	2380	rundll32.exe	30
PID 2380 wrote to memory of 2272	2380	rundll32.exe	30
PID 2380 wrote to memory of 2272	2380	rundll32.exe	30
PID 2380 wrote to memory of 2272	2380	rundll32.exe	30
PID 2380 wrote to memory of 2272	2380	rundll32.exe	30
PID 2380 wrote to memory of 2272	2380	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d5af04f1429871f086073d3a493fbe50282bbe537d90d8efa1777d7cafe6da8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4d5af04f1429871f086073d3a493fbe50282bbe537d90d8efa1777d7cafe6da8.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2272

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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