yunsip | 1fc6c675f6c2b3a884e6ace4ce3126cb20261f92919e26ed781955aecdf9da16

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-01-2025 17:47

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General

Target

1fc6c675f6c2b3a884e6ace4ce3126cb20261f92919e26ed781955aecdf9da16N.dll
Size

687KB
MD5

23f2d25504d64a1ff6076e6b5ae41120
SHA1

a9115a85617b6b682da1a562ebf8f5309622a8cb
SHA256

1fc6c675f6c2b3a884e6ace4ce3126cb20261f92919e26ed781955aecdf9da16
SHA512

862c087a2edb9f13470d16aea8a8fbfc62f9f6f0801dfb48ec73e11d6e5f645f8bcc9506ab86843d45d5f3e092b9a43581731f6cad9b9949e2dc42d7b408ce53
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYE:o6RI1Fo/wT3cJYYYYYYYYYYYYE

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 3 IoCs

description	pid	Process	procid_target
PID 3932 wrote to memory of 5052	3932	rundll32.exe	83
PID 3932 wrote to memory of 5052	3932	rundll32.exe	83
PID 3932 wrote to memory of 5052	3932	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1fc6c675f6c2b3a884e6ace4ce3126cb20261f92919e26ed781955aecdf9da16N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3932
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1fc6c675f6c2b3a884e6ace4ce3126cb20261f92919e26ed781955aecdf9da16N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5052

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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