d97689ce98bb86023bfed46c3d636d89b284b4dc74efa816a22eac828fa5707d

Analysis

max time kernel
146s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 06:25

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General

Target

2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe
Size

35KB
MD5

ae035ae5e5a6b1c4ef0d00733213876e
SHA1

5461fcacb23fbac50bdfc580d4b6e3d9f74fd64e
SHA256

d97689ce98bb86023bfed46c3d636d89b284b4dc74efa816a22eac828fa5707d
SHA512

8942697c9c986a7b5c2171cc5ca0ab62d39e8fc54cfb61ea441d18b48271cc93e69d3f146419bbc8f67d4bfd2919257fda69589276421eda9970602f81596a03
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0q8Z:btB9g/WItCSsAGjX7r3BT+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023223-12.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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1796	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 1996 wrote to memory of 1796	1996	2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe	89
PID 1996 wrote to memory of 1796	1996	2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe	89
PID 1996 wrote to memory of 1796	1996	2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_ae035ae5e5a6b1c4ef0d00733213876e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1996
- 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:1796

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
36384fc31e52bb69ada11280ea2da17d

SHA1
4384b1858e5bea02b3e53001921db9081f7054f9

SHA256
5d670dde9605a9eb8ff2184a7e1472bbb5099c70827033c388d6288630a4edb0

SHA512
d2a773268ea7e2e60bb4b2526562134f495b5223dfed6e5ff22a876589204f1e30c6d28d09dc4317e36f320d5f3a9aa41004498a171de06bbcc9befefb457f97

Download Submit
memory/1796-21-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/1996-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1996-1-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/1996-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download