yunsip | c3d64e13f0686dcda0c914794db98c6ca2e181395ba397ca5d500d4ce8a572a1

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24/02/2025, 13:36

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General

Target

c3d64e13f0686dcda0c914794db98c6ca2e181395ba397ca5d500d4ce8a572a1N.dll
Size

707KB
MD5

760be2ae93324fcda54009f7e2b843f0
SHA1

06e8113bd3bb8b4be748a4733d14bba9d3ad12dc
SHA256

c3d64e13f0686dcda0c914794db98c6ca2e181395ba397ca5d500d4ce8a572a1
SHA512

ff077a5702d793d2cb2c7f7a90058de0f93cb81d30f822f73249568c847fcbfef5b16017c6baa86166308e4cafa0ef2fb4563d56cd96ca41cdef64e85dcae05b
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYo:o6RI1Fo/wT3cJYYYYYYYYYYYYo

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 1284 wrote to memory of 2560	1284	rundll32.exe	30
PID 1284 wrote to memory of 2560	1284	rundll32.exe	30
PID 1284 wrote to memory of 2560	1284	rundll32.exe	30
PID 1284 wrote to memory of 2560	1284	rundll32.exe	30
PID 1284 wrote to memory of 2560	1284	rundll32.exe	30
PID 1284 wrote to memory of 2560	1284	rundll32.exe	30
PID 1284 wrote to memory of 2560	1284	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c3d64e13f0686dcda0c914794db98c6ca2e181395ba397ca5d500d4ce8a572a1N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c3d64e13f0686dcda0c914794db98c6ca2e181395ba397ca5d500d4ce8a572a1N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2560

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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