393b5f45419f795de89c44941234b26dd1db575169f17fd98961020d2e0f64b6

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 06:45

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General

Target

2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe
Size

84KB
MD5

cfd53fb030e1cd621d2536b896623128
SHA1

5834421d63f4699ba807a708a25bffaedd10bc27
SHA256

393b5f45419f795de89c44941234b26dd1db575169f17fd98961020d2e0f64b6
SHA512

7b974cfbc0a331b575f8e06f99404166f3bfc83f85df4989ab6f913cce091089bd46fc0ae9bd6df90c8cb0c5f55b4516bff05e80bada64e8e7e906336a07a36d
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNlVSLQsM:V6a+pOtEvwDpjvp1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2796	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
856	2024-03-16_cfd53fb030e1cd621d2536b896623128_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 856 wrote to memory of 2796	856	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	28
PID 856 wrote to memory of 2796	856	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	28
PID 856 wrote to memory of 2796	856	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	28
PID 856 wrote to memory of 2796	856	2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_cfd53fb030e1cd621d2536b896623128_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2796

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
85KB

MD5
7b3f282e2eedab9e64e034bf4043bf78

SHA1
c8cd7d6a2a91335dc037f62dccc0bd015b22ef95

SHA256
49a1a154a8df8b84bf311107eeccb3a5c96e16bc12d2521f9967da8a19ba3e41

SHA512
7da1b2606fe55958972af2f37a7da832d2f5e2a769690f354f0c84d628e80267111b3cee686553694129b6fe40f41cab537d1c227d99eefdf10499930faf1f43

Download Submit
memory/856-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/856-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/856-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2796-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2796-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download