yunsip | 891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-12-2024 00:19

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General

Target

891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305N.dll
Size

759KB
MD5

3ec1e79a6ad1dba8e56f568a60745350
SHA1

b79fc6ea7996aa4e4e6d33a7641a20d54a38dba2
SHA256

891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305
SHA512

fae3a03d3cbce1dfb3f92ad1602533e6029118fa2560161af61292e24907c626766f507d78e7c6e3b9d25c34151f63d3997aa2df914003987be1af1a3cc73962
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYZ:o6RI1Fo/wT3cJYYYYYYYYYYYYZ

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 2212 wrote to memory of 2444	2212	rundll32.exe	30
PID 2212 wrote to memory of 2444	2212	rundll32.exe	30
PID 2212 wrote to memory of 2444	2212	rundll32.exe	30
PID 2212 wrote to memory of 2444	2212	rundll32.exe	30
PID 2212 wrote to memory of 2444	2212	rundll32.exe	30
PID 2212 wrote to memory of 2444	2212	rundll32.exe	30
PID 2212 wrote to memory of 2444	2212	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\891fddda82d3ec31f8fdfdf9fb6d503ca3dbb254286bcc931816bf6e3e92c305N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2444

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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