5c91cbf86402c88f8215388b378866d3a13a5a6ef2f1d3950f84c40b9bfcf6a9

Analysis

max time kernel
132s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 03:22

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General

Target

2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe
Size

34KB
MD5

1344fa54d91fdf900a1ff989af04d93e
SHA1

202ed2b033aa45c4a2b3b184233d208b19bf873a
SHA256

5c91cbf86402c88f8215388b378866d3a13a5a6ef2f1d3950f84c40b9bfcf6a9
SHA512

9f401af1e0c42c10107f4bbfbdc9cf846e460033cebcb41b9d570d049e5e1ded6781ff882690a19b1ba4cb70d90144a5c2315941a7f5e30417a5a088335c6b44
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qPU:btB9g/WItCSsAGjX7r3BTc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	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 1132 wrote to memory of 5048	1132	2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe	89
PID 1132 wrote to memory of 5048	1132	2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe	89
PID 1132 wrote to memory of 5048	1132	2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_1344fa54d91fdf900a1ff989af04d93e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1132
- 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:5048

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
7a5c1469b069441db5450a0f247b029f

SHA1
f298d8a37fb847fedb751e72af586b454506e7b9

SHA256
b9a307cd326dbe38e6832412466e10ac5fca84f48de81d5305b143a9d3457924

SHA512
29459fe3e7435bfc294db5e37f1df5eefbfc0c8f9b4ac9ad1a2787f211596c1710aac4a3629bb155b265583649f2d7bdcea11dac228fa699e9895a37ac2369cd

Download Submit
memory/1132-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1132-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1132-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5048-21-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download