yunsip | e022ed15357fc4f55e33ead08a5ffcb384b65d0f9e4a08ad0f0d51131931615a

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-08-2024 03:17

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General

Target

e022ed15357fc4f55e33ead08a5ffcb384b65d0f9e4a08ad0f0d51131931615a.dll
Size

1.0MB
MD5

8e945420f1eeacafdce88036a2577867
SHA1

aa0202476e58c2de8e7fe2b177562c26f4e5dbcf
SHA256

e022ed15357fc4f55e33ead08a5ffcb384b65d0f9e4a08ad0f0d51131931615a
SHA512

bd50738f58569e9daf7b4391c46572c63c08ee945e49f1b861a701e3731aa2a3f8a1df938e4b3d7bafd7896a45c8a494060465adaf1086e3514ac87c7cf8ec29
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYY3:o6RI1Fo/wT3cJYYYYYYYYYYYY3

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 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe
PID 816 wrote to memory of 2824	816	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e022ed15357fc4f55e33ead08a5ffcb384b65d0f9e4a08ad0f0d51131931615a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e022ed15357fc4f55e33ead08a5ffcb384b65d0f9e4a08ad0f0d51131931615a.dll,#1
2⤵
- System Location Discovery: System Language Discovery
PID:2824

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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