1bf82e63849b228968417f340e8fd42f002cd8e0c0cafbcfaadbcd611ea3a640

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/05/2024, 12:51

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General

Target

2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe
Size

41KB
MD5

e5f08bc96f556d5335d94910a598c31d
SHA1

74023bc8151a27b618592f6a2742f539a833dd55
SHA256

1bf82e63849b228968417f340e8fd42f002cd8e0c0cafbcfaadbcd611ea3a640
SHA512

8b317c67a43e7dd79ae2e1b6161cdc0c62f96cb7423ca06e453bea6b03586ae4796eedc265bb8af110ad911e6d84010d0ee1b6853debadc1d68a29cc6da1203c
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCj:X6QFElP6n+gJQMOtEvwDpjBsYK/fo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015d79-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015d79-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2480	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1972	2024-05-17_e5f08bc96f556d5335d94910a598c31d_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 1972 wrote to memory of 2480	1972	2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe	28
PID 1972 wrote to memory of 2480	1972	2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe	28
PID 1972 wrote to memory of 2480	1972	2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe	28
PID 1972 wrote to memory of 2480	1972	2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-17_e5f08bc96f556d5335d94910a598c31d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2480

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

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

Filesize
42KB

MD5
cfe83afa0c90688862bf7ebe5b4aef38

SHA1
fc9b7dd8decae5d0d87e387837f25ee602c4c226

SHA256
be1314a3174eeb82999987704310f97251d64f640efd74b72eddf031f985cccc

SHA512
f8f5549a57559273c6614c7b75bf953d2331b4ec3c4a71cf729d78a111cf119607bb16cc7a7460b542626b1eebb626cf86f9ec64e7c12551b8afa9080445617d

Download Submit
memory/1972-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1972-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1972-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2480-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2480-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download