yunsip | d39861a14bd85387dc733617dc8158313d713a68ac8644ee4aea78a2fb2499e0

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 11:54

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General

Target

d39861a14bd85387dc733617dc8158313d713a68ac8644ee4aea78a2fb2499e0N.dll
Size

708KB
MD5

dfa0e4f24ca431aeb56360775acf0910
SHA1

e9a94e0e145ae58eba6a39ac583b8b77f0ab0627
SHA256

d39861a14bd85387dc733617dc8158313d713a68ac8644ee4aea78a2fb2499e0
SHA512

693b5cf97bd83f8b630e916b796136b782fe9c39dcff4e3f0a883bb560500fea14a6aed4bcd17928315b663972cbae64b1cdffc543e0c86e3bdc055a12e39436
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 1948 wrote to memory of 288	1948	rundll32.exe	30
PID 1948 wrote to memory of 288	1948	rundll32.exe	30
PID 1948 wrote to memory of 288	1948	rundll32.exe	30
PID 1948 wrote to memory of 288	1948	rundll32.exe	30
PID 1948 wrote to memory of 288	1948	rundll32.exe	30
PID 1948 wrote to memory of 288	1948	rundll32.exe	30
PID 1948 wrote to memory of 288	1948	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d39861a14bd85387dc733617dc8158313d713a68ac8644ee4aea78a2fb2499e0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1948
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d39861a14bd85387dc733617dc8158313d713a68ac8644ee4aea78a2fb2499e0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:288

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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