644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811

Analysis

max time kernel
94s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 06:53

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General

Target

644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe
Size

53KB
MD5

004e4ef66887ced58bfb878c30803730
SHA1

ae2ce774aedff69a9dd9eab6791dcc658e7e1900
SHA256

644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811
SHA512

23770719f5a80111d468f5ab98d708aacc87516598b4fbc6b08dce72736b4ed37e98d6af8e034267d55efa98b9ee22002683f18547dd340894b5ab9e95cb1353
SSDEEP

1536:aNTg8r8QJR+kGFdO7Kp3StjEMjmLM3ztDJWZsXy4JzxPMk:C+kHJJjmLM3zRJWZsXy4JN

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe

Executes dropped EXE 1 IoCs

pid	Process
3548	youijeg.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4608	4896	WerFault.exe	81
3632	3548	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 2 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	644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	youijeg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4896	644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe
3548	youijeg.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 3548	4896	644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe	82
PID 4896 wrote to memory of 3548	4896	644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe	82
PID 4896 wrote to memory of 3548	4896	644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe	82

C:\Users\Admin\AppData\Local\Temp\644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe
"C:\Users\Admin\AppData\Local\Temp\644b08d376383fffa19d8fa60cf0dbbf5705fae34940c4ed9d52c50a04f28811N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4896
- C:\Users\Admin\youijeg.exe
  "C:\Users\Admin\youijeg.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3548
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 672
    3⤵
    - Program crash
    PID:3632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4896 -s 924
  2⤵
  - Program crash
  PID:4608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4896 -ip 4896
1⤵
PID:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3548 -ip 3548
1⤵
PID:3424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\youijeg.exe

Filesize
53KB

MD5
58d59e5435a0e49d520ba2ba1a20337a

SHA1
065080beac0dfa06576adad57f0c65640be4044b

SHA256
c7e9f214d2cac16830d1a3f494e89c9d5c4ced8c2a46f5ce94477dbda11b5a60

SHA512
4054ba970c63f618f8324c74884c9aee08b2b38782f41fbdf8b1bb0f4068be17ae68b6cd068a7bf9b0751588b6d26de4a3b20409ee909818f5f893f5b986ea8f

Download Submit
memory/3548-33-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3548-38-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4896-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4896-37-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download