146b1f858b0871748d228a23b37c30b2235ce99f224156c46e17eb454562b1cb

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 04:31

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General

Target

2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe
Size

50KB
MD5

18540a33b182171daaf5d583e0855849
SHA1

487034b21adc0e69517c83bc210e3778abd34af7
SHA256

146b1f858b0871748d228a23b37c30b2235ce99f224156c46e17eb454562b1cb
SHA512

bc81c3318eedca71ac40ca4c2c7f821f8527398faa4808a76f608218efdc416589c9d5a624a86662dd55793ddc46d7ec2dd1e836b5bf79dcb13be4fc03a47c4d
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZUB:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLqB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012336-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012336-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2176	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2176	2192	2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe	28
PID 2192 wrote to memory of 2176	2192	2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe	28
PID 2192 wrote to memory of 2176	2192	2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe	28
PID 2192 wrote to memory of 2176	2192	2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_18540a33b182171daaf5d583e0855849_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
51KB

MD5
119367474331ec70c7748f6fe69c1bb4

SHA1
a81233ed885e330257a0d2d76f55802a487bdd83

SHA256
bd683c9bffce948570e0a5efcc0a25f03482ade05b22e0605d260a1f0bb8c3c7

SHA512
06a959baeeb4757f00bb0dcda242dbb02098b7352361c3a3cc340673d50da52c9a0aca11574735d00b996348c476601fdc0638a3e637bef48b85fd50745cd3e9

Download Submit
memory/2176-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2176-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2192-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2192-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2192-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download