50779de236ed193b90d5ae419ebad078d806eed5264958ba8956e05b828b6462

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/04/2024, 10:59

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General

Target

2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe
Size

131KB
MD5

cdd6f44c7dd3a1131108ba7e58a3d675
SHA1

c693421d2d0644d102b48412f8d33921c58ce21a
SHA256

50779de236ed193b90d5ae419ebad078d806eed5264958ba8956e05b828b6462
SHA512

68ff50c26d5c94029bbc0725168077b2d68ae3bce863c78ecab5e6734a3f41e2b80d806654b449a790ce1fe5211ad8a6aa59646c6f6b75094f80a41b4bf9ba31
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp699GNtL1eaa6:V6a+pOtEvwDpjtzU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001227d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001227d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2296	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_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 1732 wrote to memory of 2296	1732	2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe	28
PID 1732 wrote to memory of 2296	1732	2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe	28
PID 1732 wrote to memory of 2296	1732	2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe	28
PID 1732 wrote to memory of 2296	1732	2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-06_cdd6f44c7dd3a1131108ba7e58a3d675_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2296

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
132KB

MD5
250dfb35b429fdb438f198174c904b3c

SHA1
ef79be13cfe6a897366d2b1279749cdaac9941bc

SHA256
e577d0b6ace90f6ea307abe11675b21002ad63d4afb80729b88dbdf54116ee4b

SHA512
465cf63eea3e62a27f8accd2732cc0c4a8e56d23d02308a4f19587046e7248ac52c15d26cbac29b7ba68058b30d7589741207acaad6f51081a7825100572f22a

Download Submit
memory/1732-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1732-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1732-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2296-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2296-16-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download