63ed2aaa90a1ed308a83064a3e91340a78feca23d3d971112a68f8041a8d114a

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 08:35

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General

Target

2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe
Size

79KB
MD5

a3073b1436e148d9cb8e336976efb304
SHA1

0bf92921d0bfa4a19709f1b4e8661be2ad8f78e6
SHA256

63ed2aaa90a1ed308a83064a3e91340a78feca23d3d971112a68f8041a8d114a
SHA512

e4d68eed4f6ab22439bb1c95917b289a3756931f660ee5f2760b61a569529250ffda97ccc54565df6c4058f5e181c079376e807f67afefe8a4ee8f5737007a5d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNluiCx:V6a+pOtEvwDpjvpq

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001342e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001342e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2112	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2364	2024-05-05_a3073b1436e148d9cb8e336976efb304_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 2364 wrote to memory of 2112	2364	2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe	28
PID 2364 wrote to memory of 2112	2364	2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe	28
PID 2364 wrote to memory of 2112	2364	2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe	28
PID 2364 wrote to memory of 2112	2364	2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-05_a3073b1436e148d9cb8e336976efb304_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2112

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
79KB

MD5
31a740c7dce309118765df4edfb208a2

SHA1
612664b5e9310a4dc24b783529cd0b8297fee4f7

SHA256
3b3a544ae185da9b11062e7be8f324de073c2428907a35a79bb6060950be25ba

SHA512
2c77df2b62c93bed45c8c2c2198493173332c848824466698208dd37da0035f20f3f020b986f5d1a6b5c83a44c39182369da0a1049027b395fa708bcb389ce05

Download Submit
memory/2112-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2364-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2364-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2364-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download