yunsip | 9571be501940f969655d0090d08299fe6e8e49c4f29e6319958ec971b793ab25

Analysis

max time kernel
17s
max time network
18s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
05-08-2024 05:53

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General

Target

578c4720235fc7990143115192444d10N.dll
Size

669KB
MD5

578c4720235fc7990143115192444d10
SHA1

1ff97e1b91b177019437282e2fc3047e6b9cc8f6
SHA256

9571be501940f969655d0090d08299fe6e8e49c4f29e6319958ec971b793ab25
SHA512

1bdbeb1a4252a8dc907e9098339914bdf39ee03184ba7d1f5027610fe89bf021bd14985cd817171952cbce761ed6e7fb576f313940a95fa763fedf28f8f8b60d
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYU:o6RI1Fo/wT3cJYYYYYYYYYYYYU

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 2504 wrote to memory of 1072	2504	rundll32.exe	29
PID 2504 wrote to memory of 1072	2504	rundll32.exe	29
PID 2504 wrote to memory of 1072	2504	rundll32.exe	29
PID 2504 wrote to memory of 1072	2504	rundll32.exe	29
PID 2504 wrote to memory of 1072	2504	rundll32.exe	29
PID 2504 wrote to memory of 1072	2504	rundll32.exe	29
PID 2504 wrote to memory of 1072	2504	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\578c4720235fc7990143115192444d10N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\578c4720235fc7990143115192444d10N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1072

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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