3693a6db09ed856b8ed76a2bcf662998d5262c3c52116ce97c66361a310c04d6

Analysis

max time kernel
144s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 11:25

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General

Target

2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe
Size

35KB
MD5

1b3d0a704a32d69aeab4788008ef21f7
SHA1

0cdfb37c1dd535dee6d8daaec9ef31c9f061622f
SHA256

3693a6db09ed856b8ed76a2bcf662998d5262c3c52116ce97c66361a310c04d6
SHA512

df8bc0abf5d2dc5d3f9dfc5c764e254f2cf307a894b454d1689f9d504e7df11d147eb65ff6f579a059b4d05fb1408295b4c4a7d9b08f1226b02d0be5dbb57be5
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKjb:btB9g/WItCSsAGjX7e9N0hunKP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023237-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
680	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 4820 wrote to memory of 680	4820	2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe	86
PID 4820 wrote to memory of 680	4820	2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe	86
PID 4820 wrote to memory of 680	4820	2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_1b3d0a704a32d69aeab4788008ef21f7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4820
- 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:680

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

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Downloads

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

Filesize
35KB

MD5
0787ec59db67b63e203e033d15d513c4

SHA1
50b8bc5c181ce4ead1459002fc159f5beb0c2ede

SHA256
b5121e2cf68b14b64211f2433e250a6187852c91d10de577761bfd86b6ba7ef1

SHA512
e9d111b2aa6eb44d49b80768504bd3721cf190340e04fa3234cac0e5ebe9b816d71302c6dd985898fdc8a630992e49939998baf4362bf72f23b1ecb1a02ce285

Download Submit
memory/680-25-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/4820-0-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4820-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/4820-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download