1d1244b1de201da94d7d1cf6923e059c681baa2b0edcd48be69f4d548a13871f

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2024, 22:32

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General

Target

2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe
Size

39KB
MD5

847d8a42f17da8c6c33fcf823bf7901b
SHA1

e93812d567015be1a5ca5619aa13a8038bbb278d
SHA256

1d1244b1de201da94d7d1cf6923e059c681baa2b0edcd48be69f4d548a13871f
SHA512

65bbde56fc1bc623c9cf9192f6a1ee3bfb4d0c5614c8212049d0d45c848778f48056c3334460ef8c07efa4aac05d870b72c845290488aef95b18cdd57f8e925f
SSDEEP

768:bA74zYcgT/Ekd0ryfjPIunqpeNswmxT4HmQ:bA6YcA/X6G0W1BGQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e970-11.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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	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 2876 wrote to memory of 2892	2876	2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe	84
PID 2876 wrote to memory of 2892	2876	2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe	84
PID 2876 wrote to memory of 2892	2876	2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_847d8a42f17da8c6c33fcf823bf7901b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2892

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
39KB

MD5
b51e2a349ab4166508ed865cbae554eb

SHA1
fd4da9fd2d2edea3cebd4405e385528e460c7b99

SHA256
8de6f792cce0ac7bfb478e1f37a13c82214e5dfb634063e5e6891f8f8f57cf2b

SHA512
5b9f80f721e5efb7f7b062e603912477d5111cb7914e8c276c473eb8e72f401b3fd5bdccc0d522c75f3b623ee7f6b48a5e672b87dd3db84c7ea29585489f19e0

Download Submit
memory/2876-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2876-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2892-17-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2892-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download