yunsip | be492a754e33e397f73d7a692e7e93c534f73f674d501e417bae77507557c042

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 12:54

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General

Target

be492a754e33e397f73d7a692e7e93c534f73f674d501e417bae77507557c042N.dll
Size

807KB
MD5

49dcdd8d01bbc85d5a731f7be71671e0
SHA1

10d6a9891fff4a3f1a62bdf21597b11502b96030
SHA256

be492a754e33e397f73d7a692e7e93c534f73f674d501e417bae77507557c042
SHA512

f276251f5e3a40f37343e9920922731aa3457b2457ace9bf29b356f73b401591ec01cf11e7d7d6d4c1bc536c48605cd65882595f73754e0be73caa24fb45153e
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYS:o6RI1Fo/wT3cJYYYYYYYYYYYYS

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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe
PID 2712 wrote to memory of 3044	2712	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\be492a754e33e397f73d7a692e7e93c534f73f674d501e417bae77507557c042N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\be492a754e33e397f73d7a692e7e93c534f73f674d501e417bae77507557c042N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044

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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