yunsip | b1b4f45e8f27d0f47a7223ea634e580a7a4dc358d729d403449770dda4b44b43

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 02:49

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General

Target

b1b4f45e8f27d0f47a7223ea634e580a7a4dc358d729d403449770dda4b44b43.dll
Size

1.0MB
MD5

926db2a86506f6c54cfd301085f0842c
SHA1

31a8210df5339f7ae00ec470c6ac50c7095c98ce
SHA256

b1b4f45e8f27d0f47a7223ea634e580a7a4dc358d729d403449770dda4b44b43
SHA512

b9eac0d52212e1d1578106e93ddc025f7b03a5ad93266433bbf3dd17a6ea85910df22ee343fbdfea4d76ee055955857dd38b54563ca80d72a8f290e4709ef1eb
SSDEEP

3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDy:o6C5AXbMn7UI1FoV2gwTBlrIckPE

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 2420 wrote to memory of 1748	2420	rundll32.exe	30
PID 2420 wrote to memory of 1748	2420	rundll32.exe	30
PID 2420 wrote to memory of 1748	2420	rundll32.exe	30
PID 2420 wrote to memory of 1748	2420	rundll32.exe	30
PID 2420 wrote to memory of 1748	2420	rundll32.exe	30
PID 2420 wrote to memory of 1748	2420	rundll32.exe	30
PID 2420 wrote to memory of 1748	2420	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1b4f45e8f27d0f47a7223ea634e580a7a4dc358d729d403449770dda4b44b43.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1b4f45e8f27d0f47a7223ea634e580a7a4dc358d729d403449770dda4b44b43.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1748

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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