9de856cc4215d7c6db58e9a8f18803ac185b3f7340dc99d55589c04fab1543f6

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30/05/2024, 06:50

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General

Target

2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe
Size

41KB
MD5

8a946abc7d6c1bb027ca7f495c6183e8
SHA1

dcd64294a39f167ab6af5563afe402d00d7db6dc
SHA256

9de856cc4215d7c6db58e9a8f18803ac185b3f7340dc99d55589c04fab1543f6
SHA512

4be29150e70b647b1f6fcae76ee3ffc4a625cb85d27e2e89ce25dfaae6c5b19a4e9b91e52aeaaf38b3f5e48bc64e2200566c52af4b1d3e071eec4b72a3a146d7
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCO:bA6YcA/X6G0W143Qd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023400-12.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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2540	hasfj.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 4224 wrote to memory of 2540	4224	2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe	81
PID 4224 wrote to memory of 2540	4224	2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe	81
PID 4224 wrote to memory of 2540	4224	2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_8a946abc7d6c1bb027ca7f495c6183e8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4224
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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\hasfj.exe

Filesize
41KB

MD5
cabf27845630886f5ac6e70394f69e5d

SHA1
9d673f3b7bfbd6cc7f14fe58a4a00cbef0ec9d04

SHA256
62cb44f3cdfc29b23ff59b69030ad9418bb6005c9799969cda64d4989a9d4aa4

SHA512
6db9e65c0b5fa90a4097552ef46da99f35f9813f0c6ce55f7a241f0b2d4593d0650f157b968684fa3c1e6d372e6e17d85089a72bf5b6e82febaa792485793fdc

Download Submit
memory/2540-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/2540-23-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4224-0-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4224-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4224-8-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download