46d5ce51339c5d18213b39e71b2df30e4cfcf5de850160ca77bd05813407c38b

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12/03/2024, 08:23

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General

Target

2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe
Size

38KB
MD5

0bdcb1d3d6aa99cbeac61ff42036b856
SHA1

51b277859086faff66e4f9a5ae578652337d329d
SHA256

46d5ce51339c5d18213b39e71b2df30e4cfcf5de850160ca77bd05813407c38b
SHA512

49d085e1d69447161f1d38f59619392a373f537d61af2f83e6b557f6b899d4f28082627550e37bb26b7ab6ea2c5f394918d6317b8a68669004b8eba726053cf0
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfX2K:bgX4zYcgTEu6QOaryfjqDDw3sCu5mX1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2632	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 2060 wrote to memory of 2632	2060	2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe	91
PID 2060 wrote to memory of 2632	2060	2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe	91
PID 2060 wrote to memory of 2632	2060	2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_0bdcb1d3d6aa99cbeac61ff42036b856_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2632

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
38KB

MD5
c84a6357db0517bfed8ded1f5244c23a

SHA1
ffa5d9f52586d22293a25482e440ef5cd14b821f

SHA256
a3a39e7c5cc46e9524c42d7e44289b410c3f99c54a4697afb79775b515385aea

SHA512
a020adf14f0c4ce83b6ac0c76c6f5a0919b4ffe8137f4264f8ae951484055cf5a9fcb5b671f1c46b3173545d9d2939b2178998502294ac1347947a5c261dbe2c

Download Submit
memory/2060-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2060-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/2060-2-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2632-17-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/2632-20-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download