yunsip | 66b3baa6408193b5119a4ee5a91499437a0b4ce8c1bab0509960a3ee465f2760

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 02:26

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General

Target

66b3baa6408193b5119a4ee5a91499437a0b4ce8c1bab0509960a3ee465f2760.dll
Size

600KB
MD5

973730150a09e74de859791756936365
SHA1

19b2661f358e1ac0b252c5028448287635d53191
SHA256

66b3baa6408193b5119a4ee5a91499437a0b4ce8c1bab0509960a3ee465f2760
SHA512

37e0ddc22aea9c20e2825adee5d9dd01f1aca8026f45742e880ed2eae3e4dea0c4b95dde2a5026abc57090f624e5adb51b369136503771cda1369ca9d038d160
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q07:jDgtfRQUHPw06MoV2nwTBlhm8j

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 2256 wrote to memory of 2696	2256	rundll32.exe	30
PID 2256 wrote to memory of 2696	2256	rundll32.exe	30
PID 2256 wrote to memory of 2696	2256	rundll32.exe	30
PID 2256 wrote to memory of 2696	2256	rundll32.exe	30
PID 2256 wrote to memory of 2696	2256	rundll32.exe	30
PID 2256 wrote to memory of 2696	2256	rundll32.exe	30
PID 2256 wrote to memory of 2696	2256	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\66b3baa6408193b5119a4ee5a91499437a0b4ce8c1bab0509960a3ee465f2760.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\66b3baa6408193b5119a4ee5a91499437a0b4ce8c1bab0509960a3ee465f2760.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2696

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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