0b29506e188d524b2d287d36ef79e59a924420b2471ee9ed070f555e4ce0d980

Analysis

max time kernel
149s
max time network
154s
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, 01:02

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General

Target

2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe
Size

50KB
MD5

460356ac55449e6f4c3c2d0059c42c90
SHA1

3232616a5cf3a0b15bdfcfb3ed7d2af4e229a220
SHA256

0b29506e188d524b2d287d36ef79e59a924420b2471ee9ed070f555e4ce0d980
SHA512

c36cd0be0a089db28f349bbdd400a57a822781bd247600d246e05717124d47fa41d04ab3c65cd2ee339875aadeda6c8e46d02ecf8189513b4797279926df1ce5
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZWh:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023250-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023250-12.dat	CryptoLocker_set1

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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2136	asih.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 2828 wrote to memory of 2136	2828	2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe	88
PID 2828 wrote to memory of 2136	2828	2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe	88
PID 2828 wrote to memory of 2136	2828	2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_460356ac55449e6f4c3c2d0059c42c90_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2136

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\asih.exe

Filesize
50KB

MD5
7e0cea2fb018f52aa8b9de67fef3cf0c

SHA1
3d1520c13c24153b86aba36e6e8b377ba8335c00

SHA256
084f48d5bdc351545efc468d209b504d2743d55d49a9dca9ddc80a1ee7c7265d

SHA512
94258168f1b481c4ec6bbc926b6f88f9972e57ec477c94c5634a2196ae53805312e237bb890d6082eef3c1bf701d39cd7ab92926f06378f40be1bc52a4e8c488

Download Submit
memory/2136-17-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2136-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2828-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2828-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2828-2-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download