8fda2809fc48987b3ef38f9abb63301c8969e67668594d4632172bbf8b65cd46

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 06:18

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General

Target

2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe
Size

32KB
MD5

e89684773dac8e44cb7877d898180ccc
SHA1

fc630ea8b83d82ed875630ac7166fb0e4ff2cab1
SHA256

8fda2809fc48987b3ef38f9abb63301c8969e67668594d4632172bbf8b65cd46
SHA512

d27987f629388bb09ddfb32122a7956c47690d149c447fd6d7e1f0e4f67527d32a2363a987f7bbf5fc61686d6b2c4e1f07130fea5690dd38beab75427d6e2ae1
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8S4N6:bA74zYcgT/Ekd0ryfjQRSNhpSx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023202-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4108	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 752 wrote to memory of 4108	752	2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe	85
PID 752 wrote to memory of 4108	752	2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe	85
PID 752 wrote to memory of 4108	752	2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_e89684773dac8e44cb7877d898180ccc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:752
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4108

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
32KB

MD5
89a8d4ed3c85a978138bd1bbcd125a94

SHA1
b66decd14ceac0528b4e9734fe0cd4556fcaa817

SHA256
b18847c1bda6a4886e8e990a6bc4eef2a7b071ff2f0540078f3145bb6037aca4

SHA512
2233ea474a02c9afab4172985ff18e34ce548431f77b2329ced066d6259e59f518e2f2339e36a7a1e28a9b796a4ff37a89d56f1512a33b1fc8529d18a15ff75c

Download Submit
memory/752-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/752-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/752-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4108-17-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4108-19-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download