97802164ca7ddf47698c335a423e43f33c186fa7817a4bc473c2dc267dd55851

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 23:24

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General

Target

2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe
Size

34KB
MD5

563f5cbd82755c84571357de308eaa0e
SHA1

ca9e107c88b2222aae7ac0a0172ccb8e05a4f53d
SHA256

97802164ca7ddf47698c335a423e43f33c186fa7817a4bc473c2dc267dd55851
SHA512

a568d1f0c6df04549883d755c73f297b089d0115c5382bc5b59864d1c58a4e585825c15cad9af00903bf1771f1fee43ac3d1f0164178ba025ef848b4314208dd
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qc:btB9g/WItCSsAGjX7r3BTc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2384	gewos.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3540 wrote to memory of 2384	3540	2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe	88
PID 3540 wrote to memory of 2384	3540	2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe	88
PID 3540 wrote to memory of 2384	3540	2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_563f5cbd82755c84571357de308eaa0e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2384

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
35KB

MD5
0b1ff225e5e57c9ead0d7c439ec8b666

SHA1
4c35c050ce1410a1b4acd3c2390fce4521c8517c

SHA256
4fbf29df503ddb9b0b1bd8c1fd02167d6e67fa8250e4546eadd2acb38c03c111

SHA512
e5855ea3acc1ee9d52e453c27bb13e406ae1c7faeebbce91659d746f5a599da815725f755a48c1e43d1be15673989a3f4a02f985c407fffe2b1b8f7f28d0c7ce

Download Submit
memory/2384-25-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/3540-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3540-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3540-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download