c69afd4d8b9d2eeae9c5448122df45039b0e18cc6bb424fb904b9ce99a53ec32

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 06:08

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General

Target

2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe
Size

38KB
MD5

856c8668bf2508d7342c668825d54d1e
SHA1

1a2697ecff9a70c8bb3267d6b0b368879130889b
SHA256

c69afd4d8b9d2eeae9c5448122df45039b0e18cc6bb424fb904b9ce99a53ec32
SHA512

2b6b67e98be177bf6a6cffe322646134b72dc37a271983e30aa24de047bbe3a08aecb476ef77aab86ae561901682ea3492166897d208da4fc4cf4004cb0762e6
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLp1:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkL7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1368-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1368-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014b70-14.dat	CryptoLocker_rule2
behavioral1/memory/3004-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1368-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1368-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014b70-14.dat	CryptoLocker_set1
behavioral1/memory/3004-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3004	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1368	2024-04-15_856c8668bf2508d7342c668825d54d1e_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 1368 wrote to memory of 3004	1368	2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe	28
PID 1368 wrote to memory of 3004	1368	2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe	28
PID 1368 wrote to memory of 3004	1368	2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe	28
PID 1368 wrote to memory of 3004	1368	2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_856c8668bf2508d7342c668825d54d1e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

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
39KB

MD5
82e5b6c6f2d33a875cbcbe54eab77602

SHA1
74f1a892e9109cabc9e48fcd8c961b22cf7ee564

SHA256
33c0850bdf5173398b8dc0a1e9506c447c415900a84c565894d86ec0e4c4cc1d

SHA512
bd7472a6fae0f19fc87f347f58cfd1ac05f5b88769746250e82ce99865c8710167c78c6261468967a8dfa04fdfaf27e6d26377b30707c7b3c3934acf85ce206f

Download Submit
memory/1368-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1368-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1368-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1368-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1368-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3004-18-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3004-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3004-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download