eaba293891f7ce59bfe2454cce2bbe45361147307e3906fcb90fe53a98b069cd

Analysis

max time kernel
88s
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
04-02-2024 03:46

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General

Target

2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe
Size

40KB
MD5

8c98859b30a483bd4ac502a4877429e4
SHA1

eed19cd1423a2e6b7241230a34a0fe66d9c3e3e4
SHA256

eaba293891f7ce59bfe2454cce2bbe45361147307e3906fcb90fe53a98b069cd
SHA512

0eecb5a44bd4caeadd819cc8dba166bf3c9130f2d18142e99f55b29497916ee8a9e2f2d2a4e4c5a8851aab0df4048bd47f78ddc67348c37f619daf687bdd87f4
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bT2:ZzFbxmLPWQMOtEvwDpjLeU3u

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00080000000231cc-13.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4992	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 2060 wrote to memory of 4992	2060	2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe	86
PID 2060 wrote to memory of 4992	2060	2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe	86
PID 2060 wrote to memory of 4992	2060	2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_8c98859b30a483bd4ac502a4877429e4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4992

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
40KB

MD5
d6c26bebac5f8441555e27622981799d

SHA1
1fe1556184c0637c27e38b3da94748c98114fdd3

SHA256
15a0448cdf507999cb42bf30e7e248f3378649905c1658e54fa8955cbaea8674

SHA512
6c1700b6259293879fb8ea6cb04708d7c559702caa1b0b83f5543d7b981904d0fd5b51f8e76b0c5726c4e19749e04d1c560a3802dafc9a2b3bc9f92b02ceb1a9

Download Submit
memory/2060-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2060-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2060-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2060-3-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/2060-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4992-18-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/4992-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4992-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4992-57-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download