d2a89f146bf9dc8b01148bcdd11c1850a7ff5576227fd1c8f9f1f4d819a1c86b

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
14/02/2024, 08:37

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General

Target

2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe
Size

56KB
MD5

8008bb571103c179586d81c7d71fc53d
SHA1

8937b7d462171c9556822f8e4bd77000272dd3af
SHA256

d2a89f146bf9dc8b01148bcdd11c1850a7ff5576227fd1c8f9f1f4d819a1c86b
SHA512

e9e3b6667639e9971ae424c72678f4512a4ba277800c3a75c844c2fb22b3311f162f7e2d1954b66f0b632d898b4b6ca82d875ec2530dc49e19ac294957b57a91
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHf:btng54SMLr+/AO/kIhfoKMHdi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4172	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 5668 wrote to memory of 4172	5668	2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe	83
PID 5668 wrote to memory of 4172	5668	2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe	83
PID 5668 wrote to memory of 4172	5668	2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_8008bb571103c179586d81c7d71fc53d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5668
- 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:4172

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
57KB

MD5
bac14330e0c8975a894bce425a2f9203

SHA1
e30a309065a0badca7bae7cfcc69732fb30669b5

SHA256
42fadd94285ce4274a354c2d066689263dad0975b60952b26faf01c6978afb7f

SHA512
da3f198ccd77c7934019907abc042fd44c2effb8b99f8d7eb44bbce867e6f564d2be00039b46234bc961aa66ca0520842b89bce7d5f3451f34fc13016f917c9f

Download Submit
memory/4172-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/5668-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5668-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/5668-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download