d143de38138355352bfc402be7dcd162ed401a31dc6452791667cde020d92a27

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 21:56

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General

Target

2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
Size

42KB
MD5

d9a26b386a86c1656d1c4a73f07840d1
SHA1

af60219ff56e26d745dd00c1477f50b83ff14320
SHA256

d143de38138355352bfc402be7dcd162ed401a31dc6452791667cde020d92a27
SHA512

e262ad1e17c506abb0a70cf3e14b033144f40d561a8928192d3c26e0b449bb508d4b72fee0b98e36b45fe7dd73f06f3bb9a0ee597dd10e135bb75c59d79aa035
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJPCQ:btB9g/xtCSKfxLIc/X

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1076	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 1432 wrote to memory of 1076	1432	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	87
PID 1432 wrote to memory of 1076	1432	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	87
PID 1432 wrote to memory of 1076	1432	2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_d9a26b386a86c1656d1c4a73f07840d1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1432
- 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:1076

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
42KB

MD5
a8ff3869f113b6a9cf760b382ce1f7f7

SHA1
9a4f0dc35f49d575d704e1840e61f51c3526bf78

SHA256
29b71ba0174abc25d6f12770590de965d325d21e734c8ea220190787e46b9d3d

SHA512
ad14370c645dcabfc66bd6238eb79e2499e4684c91f38b2b201ff78c5d291b64cd91bb95c1cc9ad55fcd7c287d04678ed9ec87496231a1e5b163a371d9eaa8f4

Download Submit
memory/1076-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1432-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1432-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1432-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download