c10f7768814ce30aedb8bc4e8380c0a32d42412933bd3a0e09e2d90932a8337b

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 04:38

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General

Target

2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe
Size

62KB
MD5

3da78bf9b64b9d60610ede65e1b0cc45
SHA1

023de9c9ab3bca890b170b2320b9bcc2bb409c68
SHA256

c10f7768814ce30aedb8bc4e8380c0a32d42412933bd3a0e09e2d90932a8337b
SHA512

6dfe02f3d417afb0def3b420fe6bca2e004c9a38704e3b98e5311d6d654ee41a18ab5430ba086184fac858d98cf20af6ceee63243b1b3f905a77b17b29184e71
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaF:btng54SMLr+/AO/kIhfoKMHdb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1044	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 2452 wrote to memory of 1044	2452	2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe	82
PID 2452 wrote to memory of 1044	2452	2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe	82
PID 2452 wrote to memory of 1044	2452	2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_3da78bf9b64b9d60610ede65e1b0cc45_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2452
- 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:1044

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
62KB

MD5
5e722d5482fcad74ba47b1420d3a5bfb

SHA1
3fa859780f5152929fd22ed35802cfbe80a313d0

SHA256
e34e51cebc8f063c56da814565308a4bd7e79551d76496db9f1d38471794adc4

SHA512
17f3c5bd3b0498d1c9631c7264a1d6b034e95b03048f17215849d50e9c74cf194bf889ddf51ad5ae76dd5f22b94ece634e94dedd524a37b3afbedb770923ee62

Download Submit
memory/1044-25-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2452-0-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2452-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2452-8-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download