46708536747b6d711950bc3a6a632f7084ba29445ab14f67f012924731aca445

Analysis

max time kernel
151s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 04:53

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General

Target

2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe
Size

47KB
MD5

2aa2568022c7de0c425a20d9089fc3fb
SHA1

21fd0f7ad409568dc0e17ea26c051cda790e3365
SHA256

46708536747b6d711950bc3a6a632f7084ba29445ab14f67f012924731aca445
SHA512

eff7308f4f49f9dc5964e485bc6326301aa39b5b00131dc6a3eb00706c505a58acbcd3c668e609d312d96a1c32688744d988d641ce080ec982067d2b1d72bac0
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dmv:bgGYcA/53GAA6y37Q6dmv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023233-12.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-1-5-21-1790404759-2178872477-2616469472-1000\Control Panel\International\Geo\Nation	2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4800	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 3636 wrote to memory of 4800	3636	2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe	83
PID 3636 wrote to memory of 4800	3636	2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe	83
PID 3636 wrote to memory of 4800	3636	2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_2aa2568022c7de0c425a20d9089fc3fb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4800

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
47KB

MD5
bf8773151928555816378f92aeb4daf4

SHA1
25283c361982e87d78eadd554daecbddc840196f

SHA256
b34456838249b4cf08848d0d91beb290f59d15079cad5a7afc3260e579669da9

SHA512
f36ea78e8f3547714fadca3866fed138ff684194bcb379ec58a562259ffa076ea1129c43b9e2e19b7ab9df2a9a028ea4f31f8e96a8770ac0e9d9aba97ef0f9f0

Download Submit
memory/3636-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3636-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/3636-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4800-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/4800-20-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download