yunsip | a77c439c265313896c2cabb563e9f4d11bcfb1dfbf78c4a33b057dd548076453

Analysis

max time kernel
15s
max time network
21s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
25-07-2024 16:52

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General

Target

e33ab28db6091f8e60ad1be46cca8a40N.dll
Size

1.1MB
MD5

e33ab28db6091f8e60ad1be46cca8a40
SHA1

d07438d002724f3b4558346e6bef4918eb65dd06
SHA256

a77c439c265313896c2cabb563e9f4d11bcfb1dfbf78c4a33b057dd548076453
SHA512

6bace81f8eb91bd14052f9e6034f2081c9ae97e116c912ecf7cf895ea5f7015174371652044ab9a329328d5a99af46d3b52f653db132d0800357d5e1864c592d
SSDEEP

3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDo:o6C5AXbMn7UI1FoV2gwTBlrIckPu

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

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 1220 wrote to memory of 2068	1220	rundll32.exe	30
PID 1220 wrote to memory of 2068	1220	rundll32.exe	30
PID 1220 wrote to memory of 2068	1220	rundll32.exe	30
PID 1220 wrote to memory of 2068	1220	rundll32.exe	30
PID 1220 wrote to memory of 2068	1220	rundll32.exe	30
PID 1220 wrote to memory of 2068	1220	rundll32.exe	30
PID 1220 wrote to memory of 2068	1220	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e33ab28db6091f8e60ad1be46cca8a40N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e33ab28db6091f8e60ad1be46cca8a40N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2068

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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