yunsip | 891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07/12/2024, 00:19

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General

Target
891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305N.dll
Size 759KB
Sample241207-ame2asvrfx
SHA256 891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305
MD5 3ec1e79a6ad1dba8e56f568a60745350
SHA1 b79fc6ea7996aa4e4e6d33a7641a20d54a38dba2
SHA512 fae3a03d3cbce1dfb3f92ad1602533e6029118fa2560161af61292e24907c626766f507d78e7c6e3b9d25c34151f63d3997aa2df914003987be1af1a3cc73962
SSDEEP 6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYZ:o6RI1Fo/wT3cJYYYYYYYYYYYYZ
MD5 SHA1 SHA512 SSDEEP

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 3 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 2844	4300	rundll32.exe	82
PID 4300 wrote to memory of 2844	4300	rundll32.exe	82
PID 4300 wrote to memory of 2844	4300	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844

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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