7cb4f9d1903ee8c4168f0db9ae224ddd3eb5ff0107db52c79fb8b488e25caa86

Analysis

max time kernel
149s
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
09-04-2024 11:07

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General

Target

2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe
Size

60KB
MD5

e716d996f3f0963ef4c8e773dfd20617
SHA1

dca4d89f76a9b8345c25f38d6cb7dbe5f8ae0567
SHA256

7cb4f9d1903ee8c4168f0db9ae224ddd3eb5ff0107db52c79fb8b488e25caa86
SHA512

612ad5fef7f504099d09bfb2b2dcec15e6fcbbb67747e4d0fbd1753500a31e952306e1139a7065b36e2146dabcdee86e58ffa14a07256dbcc62a94efa45792a3
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZw:btng54SMLr+/AO/kIhfoKMHdaw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0010000000023128-12.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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2708	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 1048 wrote to memory of 2708	1048	2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe	86
PID 1048 wrote to memory of 2708	1048	2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe	86
PID 1048 wrote to memory of 2708	1048	2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_e716d996f3f0963ef4c8e773dfd20617_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1048
- 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:2708

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
60KB

MD5
1523781f207fdeab27d7abce58283f82

SHA1
ca9743a9971331c4b61e138c204fdb4f40890334

SHA256
8661248b701aa5bced3884f98b79b6a0b28531deb3cbccfaaf9a0992d5a7bd5e

SHA512
f92feb874f59c79557664fe1f6fdc04b5f40fbbe695f928e17676a43babcd2021554598067bc188ec1c61ebc95a59a43506a552c056c4cec153ff1e831736d85

Download Submit
memory/1048-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/1048-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/1048-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2708-25-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download