yunsip | 2a5f208afb67407aae50f1115ccc8f396a173f6a65ad057dead4ab403b08b14e

Analysis

max time kernel
115s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20-08-2024 00:33

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General

Target

7da5ac387a411f06224a59ee4053a530N.dll
Size

708KB
MD5

7da5ac387a411f06224a59ee4053a530
SHA1

4674f3e7b9853f71bf56341ad1b92ed1b087bd49
SHA256

2a5f208afb67407aae50f1115ccc8f396a173f6a65ad057dead4ab403b08b14e
SHA512

6b746f53ffe436b3d01a4c37b2923f83c2556e014a555b272972fc37363a8b61023569f44c14dd61225ce5ac85a21bb44b3538b872e25003afbb76d9841328a6
SSDEEP

6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYn:o6RI1Fo/wT3cJYYYYYYYYYYYYn

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 3 IoCs

description	pid	Process	procid_target
PID 3316 wrote to memory of 2440	3316	rundll32.exe	91
PID 3316 wrote to memory of 2440	3316	rundll32.exe	91
PID 3316 wrote to memory of 2440	3316	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7da5ac387a411f06224a59ee4053a530N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7da5ac387a411f06224a59ee4053a530N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3264,i,3210801877307184477,8078594481454001567,262144 --variations-seed-version --mojo-platform-channel-handle=4180 /prefetch:8
1⤵
PID:4160

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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