374463855868fb431821515cbb163e10158ce9117267d5565887b6918595d9fd

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
27/04/2024, 18:12

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General

Target

2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe
Size

34KB
MD5

5e6fadf9d0f8d873513f7e6ac36e5853
SHA1

9780c14ec61b76387293e1d3e5722edde1d57969
SHA256

374463855868fb431821515cbb163e10158ce9117267d5565887b6918595d9fd
SHA512

d0f737edc01f2e783fa70785544ff56101436613b8640d15a820155bcafa03e36a4909fbdce9a954ccc7f7ff4c33fc41bd3cd5ed2b98606ad01c13d9ed3a8737
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lxo:bA74zYcgT/Ekd0ryfjPIunqpeNswm6o

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023ba0-12.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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2228	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 4468 wrote to memory of 2228	4468	2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe	83
PID 4468 wrote to memory of 2228	4468	2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe	83
PID 4468 wrote to memory of 2228	4468	2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_5e6fadf9d0f8d873513f7e6ac36e5853_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4468
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2228

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
34KB

MD5
4692178554697fed99b8929520c10c14

SHA1
b2ba21d484087d6415383c9e1906741460678b7c

SHA256
6aea566dcc7e8a2dc104ce97ed8ad034b7f081fe31c65db1d178edf25a052b94

SHA512
6df5cb74d8cfebb37f6f448cc909bc0953022a8f7c3649f93296b44b6283fab4d48f650da23bbbfd6ad82752c22f75259bf71416d3fc3e49ac3af599650c8b0d

Download Submit
memory/2228-17-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/2228-23-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4468-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4468-1-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4468-8-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download