16ce6c2d93a27d1b49da26169b427db9f9a55573f6969694fc2bf0b81df427d2

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 15:31

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General

Target

2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe
Size

60KB
MD5

8d40df93e712d5605bb25cf4ea477b73
SHA1

95097d771631df7b0de6622e35bb61dc64d59093
SHA256

16ce6c2d93a27d1b49da26169b427db9f9a55573f6969694fc2bf0b81df427d2
SHA512

f925511c0c759ed7f97df4ec76c6b3578d46b0ca99949b92fbd62d67b89e4d6f738d63ae346745dcbd04cc98135f46f94ef3bbe08e4813804735495bcb905a4c
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCY8EQMjpi/Wpi3B3URiLnuoUwUsfqB1l:vj+jsMQMOtEvwDpj5Hy7B3gG8xzUc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023226-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3556	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 5380 wrote to memory of 3556	5380	2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe	84
PID 5380 wrote to memory of 3556	5380	2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe	84
PID 5380 wrote to memory of 3556	5380	2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_8d40df93e712d5605bb25cf4ea477b73_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5380
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3556

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
60KB

MD5
abfa9054cab361553d53250b283bc54b

SHA1
0462a5e0beb2702014f7d55a0cd963ff70b22d45

SHA256
c7b99fe394d28e287e19b9d276edb85cbfec8fd0ce712a4e222fcadaa8d60c5b

SHA512
fe2324602149a70a4c5e712fda8c644642fb902e34bdb51bb029b2653e30f1944d118b88079d59820c81c95e1882d1c9327b2091ae19ec0befcf5f8a8b3fcd24

Download Submit
memory/3556-18-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/3556-17-0x0000000000800000-0x0000000000806000-memory.dmp

Filesize
24KB

Download
memory/5380-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/5380-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/5380-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download