yunsip | f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9

Analysis

max time kernel
93s
max time network
20s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
19-10-2024 22:28

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General

Target

f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9N.dll
Size

444KB
MD5

4d4646425c10b7e0433b65c420798360
SHA1

ffa035a651c61311eb3693b1d9c604c6a13236e6
SHA256

f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9
SHA512

b8a7967ffb78264a6374b3fed4f84c70f84773b8cf0333209c825d424336416b2cac8873be541a56dfb9011d0e3386af0a89bf5e39933b7ecd90dcf5918cbaf5
SSDEEP

3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0:jDgtfRQUHPw06MoV2nwTBlhm8

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 1232 wrote to memory of 1940	1232	rundll32.exe	30
PID 1232 wrote to memory of 1940	1232	rundll32.exe	30
PID 1232 wrote to memory of 1940	1232	rundll32.exe	30
PID 1232 wrote to memory of 1940	1232	rundll32.exe	30
PID 1232 wrote to memory of 1940	1232	rundll32.exe	30
PID 1232 wrote to memory of 1940	1232	rundll32.exe	30
PID 1232 wrote to memory of 1940	1232	rundll32.exe	30

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f37574357ff5b9765d08bbf757f003dded796f4664cbc6b764a4e9d6292196e9N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1940

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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