8a732c045288710bd82c8133329103f3e141ae266c7d455a11687a2b8accf913

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 07:43

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General

Target

2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe
Size

75KB
MD5

cb88277afe215a053c4cfe621d32f00e
SHA1

7694d6fba42a84c586a9a2ea0204000612b9edce
SHA256

8a732c045288710bd82c8133329103f3e141ae266c7d455a11687a2b8accf913
SHA512

74a816dc52a9ab8ab173974f29990aaa4036b18319293c1811a4ee37a04595f57d36cbe3e3698c50da2bcec7f9f540d22f57def8501ce488c5c5d59f81431445
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkE:X6a+SOtEvwDpjBZYvQd2r

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012324-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012324-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2652	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2948	2024-05-05_cb88277afe215a053c4cfe621d32f00e_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 2948 wrote to memory of 2652	2948	2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe	28
PID 2948 wrote to memory of 2652	2948	2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe	28
PID 2948 wrote to memory of 2652	2948	2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe	28
PID 2948 wrote to memory of 2652	2948	2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_cb88277afe215a053c4cfe621d32f00e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2652

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
75KB

MD5
25e3b8e6c9570283ea48d966caa03b73

SHA1
150b935b9ef34720e1f0307107ca823a88435952

SHA256
c4b8a2dcebfcdd06fa7d4b8f0e08a6eb318ca4a1483a30765011c9b2c3b41868

SHA512
6a251eba068ce00c41e331b014940af179d82f941579c0130188513122dd770f2b0d8d55b4c18f48c2433915b3bd5ac55200b5177d62d38c13e6ce794b9db469

Download Submit
memory/2652-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2652-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2948-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2948-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2948-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download