de5dee408d3ba7f37bddc495cd5381286cb7bab855c3aaa4a4367726fa7510e6

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
08/04/2024, 10:40

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General

Target

2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe
Size

61KB
MD5

bd2603c9403d5f74d84e14351e0d5248
SHA1

4d3cd35d9845c7c8d59761738a3471b8aadcc4ad
SHA256

de5dee408d3ba7f37bddc495cd5381286cb7bab855c3aaa4a4367726fa7510e6
SHA512

43f2b97b6e7434c746f909180d86c55d5e8fa8cd91639d7d69a6ba36a9f1ef0f0c6ff0a504c4297c9bb605bef8c2d96a5b074acc1e59b19afe94213cc6de7d58
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/A:X6a+SOtEvwDpjBrOY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-12.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2556	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_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 2204 wrote to memory of 2556	2204	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	28
PID 2204 wrote to memory of 2556	2204	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	28
PID 2204 wrote to memory of 2556	2204	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	28
PID 2204 wrote to memory of 2556	2204	2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_bd2603c9403d5f74d84e14351e0d5248_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2556

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
61KB

MD5
c9a0702718c3851b35e4355a3d027292

SHA1
f3d90e22fa618ed0d6753ce5edda71840a748f24

SHA256
096c1d8c6a1e1fe09fce999b34d82ec269689bab900048a298a419165f379a0f

SHA512
6743a2e04f36ceea92192081fc121adbe053cd8a4bb0fbf90e577398df7cf396256b5435d4f5c9aea32f50c10d35ba6b03f48a807e43f766f4217b8c4d2b117d

Download Submit
memory/2204-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2204-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2556-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2556-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download