yunsip | 9f7709480105bfdc2826a00424e788fe83e8330a6ee924dbdaf7ccb47bd2f6a5

Analysis

max time kernel
111s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2024 10:02

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General

Target

b9106470327831f99ea2f5320587e520N.dll
Size

1.0MB
MD5

b9106470327831f99ea2f5320587e520
SHA1

55906b2dc3cbde262e052ef5cbb44ae8158af46e
SHA256

9f7709480105bfdc2826a00424e788fe83e8330a6ee924dbdaf7ccb47bd2f6a5
SHA512

d123967626068538cd6fb96d0981891ecb614b1cb3719e71856c239e62919f4d66b5f9a0ae9bae80aa4c899c82ef6013222d448f403289b297b72e091ea191fc
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYO:o6RI1Fo/wT3cJYYYYYYYYYYYYO

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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1696 wrote to memory of 2332	1696	rundll32.exe	rundll32.exe
PID 1696 wrote to memory of 2332	1696	rundll32.exe	rundll32.exe
PID 1696 wrote to memory of 2332	1696	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9106470327831f99ea2f5320587e520N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9106470327831f99ea2f5320587e520N.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2332

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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