1341998e05d084071fa18472aad8b3f86b0f356da6146107768438b5c87b4b33

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
27/04/2024, 06:32

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General

Target

2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe
Size

40KB
MD5

813eb11087333f67a7aa4827f5207e31
SHA1

1c59dee05e8b9827abfc6849f523a5a2cfe665e3
SHA256

1341998e05d084071fa18472aad8b3f86b0f356da6146107768438b5c87b4b33
SHA512

212c3e5cdcf7626065fb81bcdd52e336db744015872b27747172f3ee4023393c9b683792b667a7034b09bc5c99c47e49430f28a5b94b6ee92a33bf344bc3113c
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/EZ/:btB9g/WItCSsAGjX7e9N0hunKLY4/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b37-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4488	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 4928 wrote to memory of 4488	4928	2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe	88
PID 4928 wrote to memory of 4488	4928	2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe	88
PID 4928 wrote to memory of 4488	4928	2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_813eb11087333f67a7aa4827f5207e31_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  PID:4488

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
40KB

MD5
2ccca32b76c034c24b234004b2861a9a

SHA1
ab71fed84c2b74e5c24b5dc49f2136d398181b13

SHA256
d272d3159c7ebd9e0740ffe5c4cb49d7f3bd33cfd15044e06c03eacbe959d7d9

SHA512
ceea64d3afdbd3fa158172bf8c4b02f62c93c1477cf060174f64001beceeaca37536d45c97211072c7b42156fd2b39650784cd1dce9359dae289fee3f3ddab96

Download Submit
memory/4488-25-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/4928-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4928-8-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/4928-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download