cd3207fb79da06d3ea21f11dd9d6c8de4bd17750d0f7b79a4bca783d35f1b791

Analysis

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

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 16:03

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General

Target

2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe
Size

61KB
MD5

bf6360a6e6325c31e3f880e8c73ea9cf
SHA1

ef13e530d1c9777f010274a037d93cb8f55128a2
SHA256

cd3207fb79da06d3ea21f11dd9d6c8de4bd17750d0f7b79a4bca783d35f1b791
SHA512

3f3e840e16cac29704df6bccff981c27621687c5eed566b5aca89aa18ed33b3d91810ba9876519e4503ea547cb58653e0b7440d4bceeafff922c86cecb1deee2
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xXcl:X6a+SOtEvwDpjBrO2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013309-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000013309-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2744	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_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 1684 wrote to memory of 2744	1684	2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe	28
PID 1684 wrote to memory of 2744	1684	2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe	28
PID 1684 wrote to memory of 2744	1684	2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe	28
PID 1684 wrote to memory of 2744	1684	2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_bf6360a6e6325c31e3f880e8c73ea9cf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2744

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
61KB

MD5
b267ca661bcb45bc0daa01098a7b99b4

SHA1
1370e04650032377a7824c3eb1472dd36de211d3

SHA256
1180d629d751846227115012f2ff9d41bebc55e6ceb602e16c6e64d455caacf1

SHA512
a766830f4247826e36d309383aaa846a3959eb50e6de1b8af6dae7f0cfa2b6e9a782ce69bed2703980286bbe8d3a6e5f1d15c4da9199bb8e2e6c48ca3a7bdb10

Download Submit
memory/1684-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1684-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1684-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2744-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2744-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download