yunsip | e8e77a06f36f5d73276e0ec3e524ddc0c3aaab6163444b29de5cf6ae159159a9

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 03:13

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General

Target

e8e77a06f36f5d73276e0ec3e524ddc0c3aaab6163444b29de5cf6ae159159a9.dll
Size

503KB
MD5

f6d76de5156f141d516c74a20ed26859
SHA1

a5bd0da8fd9ac1afa6ff51c4496eebbf144dfe01
SHA256

e8e77a06f36f5d73276e0ec3e524ddc0c3aaab6163444b29de5cf6ae159159a9
SHA512

8a34ffb272db70e7981e653803a68287c1a854b33248efa4b6590da7c3c0a96d229a7066f70b1b64e5dcc598b02a694658bd3b12b8f03b1b825828432fb926ac
SSDEEP

3072:o6pU5Y1DXnbMn7Uzkop61/dAzV2O3XwTBftrm2YedGf3QKZDp:o6C5AXbMn7UI1FoV2gwTBlrIckPr

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 2308 wrote to memory of 1932	2308	rundll32.exe	31
PID 2308 wrote to memory of 1932	2308	rundll32.exe	31
PID 2308 wrote to memory of 1932	2308	rundll32.exe	31
PID 2308 wrote to memory of 1932	2308	rundll32.exe	31
PID 2308 wrote to memory of 1932	2308	rundll32.exe	31
PID 2308 wrote to memory of 1932	2308	rundll32.exe	31
PID 2308 wrote to memory of 1932	2308	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e8e77a06f36f5d73276e0ec3e524ddc0c3aaab6163444b29de5cf6ae159159a9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e8e77a06f36f5d73276e0ec3e524ddc0c3aaab6163444b29de5cf6ae159159a9.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1932

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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