yunsip | 22b7593345ea726ac8525d0f39f9d4a685625fc2e97ad681e2b8244f4c0b90e9

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
24-07-2024 02:12

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General

Target

14cbbedf75fd1bed3fbbc4f3c3c13970.dll
Size

805KB
MD5

14cbbedf75fd1bed3fbbc4f3c3c13970
SHA1

4a4f6820f20f507479d55785aad83f28c8a88e3e
SHA256

22b7593345ea726ac8525d0f39f9d4a685625fc2e97ad681e2b8244f4c0b90e9
SHA512

7bd52e3b9d6360c80acc6c3181ce63fe0408e30502a2464b57953a6b7ff01263749399dee37fb8f4c002cf257e3c658e2bcaa3d72391b08a71b4723449d1db57
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYF:o6RI1Fo/wT3cJYYYYYYYYYYYYF

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

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 1432 wrote to memory of 1832	1432	rundll32.exe	30
PID 1432 wrote to memory of 1832	1432	rundll32.exe	30
PID 1432 wrote to memory of 1832	1432	rundll32.exe	30
PID 1432 wrote to memory of 1832	1432	rundll32.exe	30
PID 1432 wrote to memory of 1832	1432	rundll32.exe	30
PID 1432 wrote to memory of 1832	1432	rundll32.exe	30
PID 1432 wrote to memory of 1832	1432	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\14cbbedf75fd1bed3fbbc4f3c3c13970.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1432
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\14cbbedf75fd1bed3fbbc4f3c3c13970.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1832

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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