4828703513c5c741ebee3c838339ddec3df36ab8e46529221c6cae79b6eda616

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10-03-2024 19:58

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General

Target

2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe
Size

386KB
MD5

dfe2f8a8857feee9152eaccf68c8776a
SHA1

4d41187b0b94451058acc10c14faf0b5c29db1c4
SHA256

4828703513c5c741ebee3c838339ddec3df36ab8e46529221c6cae79b6eda616
SHA512

45ebc9ef5144bac6142a2ba8426cfa29ff9b1c7fb959e3f6130d9602cc69b1126f4c002508e5d421f4f15c7bab32cbc89f899f80f082391e75606366a143471c
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXG:nnOflT/ZFIjBz3xjTxynGUOUhXG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002322e-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2412	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 2696 wrote to memory of 2412	2696	2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe	89
PID 2696 wrote to memory of 2412	2696	2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe	89
PID 2696 wrote to memory of 2412	2696	2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_dfe2f8a8857feee9152eaccf68c8776a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2412

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
387KB

MD5
e0a4a498d14badc30507fece306abe90

SHA1
df2b291c77091fc3a794e572d87342ee67151e66

SHA256
5945c06bdc93bb8e5752241f249ff6d3d910330efe654043c43c8996919880bb

SHA512
82d1dcb1236972129614385cb9f53e07c1571ff87625b35d2bc94530bbea0207925b43f2c9b635d64de84a507dbb8255a01f961800b243b8faa3ead4cb735eaa

Download Submit
memory/2412-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2412-20-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2696-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/2696-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download