1a2f823fb70771604658099829781215e74da70e532fd8540f6be2afb7cd5df6

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 06:00

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General

Target

2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe
Size

41KB
MD5

66e48d958cf1df75e189b5981a0707ed
SHA1

65f168787552b3b77a0f194e6fbf770b0a25458a
SHA256

1a2f823fb70771604658099829781215e74da70e532fd8540f6be2afb7cd5df6
SHA512

b48d79686a6789f1ee0dc2e1284fc03a987b76e9362e1493739b2389c8e6a04b0a18f0a6821f17661b99b86844c5c2dad63cea91c24fb52a63eb47040608d03f
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZnzh+:btB9g/WItCSsAGjX7e9N0hunrknY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1764	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 3364 wrote to memory of 1764	3364	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	90
PID 3364 wrote to memory of 1764	3364	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	90
PID 3364 wrote to memory of 1764	3364	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3364
- 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:1764

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
41KB

MD5
63e6a9838d812a5b5e854800806c5127

SHA1
ff264894bcc8b2c350cab089076e9af8c7042884

SHA256
d149fa2312b0327c9df255ebcd24afd1f127d0884be2ef6fa2def8e10e606f14

SHA512
e10e99f9f59c128040323a5f498ea0ae31128f278a7feb504ecd6539ca8cbe118f0ba85706443aa08da8eafc3a9ef39752ae92e1c44f08eef394e21035b494b8

Download Submit
memory/1764-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3364-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/3364-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/3364-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download