a5b28dbc59034309d342cfe245a4ba1bbe0cdb1042c9cd26e5f6857cd48f6e71

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13/06/2024, 00:38

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General

Target

2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe
Size

39KB
MD5

74d15f01ad5d7a8fa37a19f6dd6f20e6
SHA1

0b3cc833d5d250297ecb31c0dd1bfbcc3b1bd948
SHA256

a5b28dbc59034309d342cfe245a4ba1bbe0cdb1042c9cd26e5f6857cd48f6e71
SHA512

818c0544d48b3083a9764ec41f9676a650751b13004c61e811915c11f2f45d12beb077ad7163699cf41b98799c9928e4f076cfe41767d2471d6039ca4026ee33
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4qd:fT+hsMQMOtEvwDpjoIHG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002340c-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002340c-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	misid.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 3688 wrote to memory of 2680	3688	2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe	82
PID 3688 wrote to memory of 2680	3688	2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe	82
PID 3688 wrote to memory of 2680	3688	2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-13_74d15f01ad5d7a8fa37a19f6dd6f20e6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3688
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2680

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\misid.exe

Filesize
39KB

MD5
9ec92e6065d73cf028b40c1aaccfb1a8

SHA1
695af4d568feb2c7feea1c51384649d8b9913e1f

SHA256
568f479764a87b51c81aea3bc118131e0a2810f8702b5a4f3c23fd92b52f5e4b

SHA512
3fcfa9160cf7b648f4062eefec2df3f1f79e5d1033a0725dfa3cb2f2ea4a45bf60b6640b540710591c2d27014948e702652bd8024a198e1eed60298b2c8fd4d5

Download Submit
memory/2680-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2680-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3688-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/3688-1-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3688-8-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download