71478ac5a1542e20efe00c65a2e126e39149c708d31782cc314dfba869a65a22

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 15:48

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General

Target

2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe
Size

73KB
MD5

e782b6767779f57926d114439b705315
SHA1

5305933a939a89584d7a6a5e54ede6d804b1639b
SHA256

71478ac5a1542e20efe00c65a2e126e39149c708d31782cc314dfba869a65a22
SHA512

fc58a7518bb027d941851e2dc8f3bbdab8b0bf6a8396692fb97268573e241ae7835d01ffed6dbfdf47df494b9e7e6751ea1c072609013fce182b1e6c3541b39b
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1UM:X6a+SOtEvwDpjBZYvQd2H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1836	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2268	2024-03-09_e782b6767779f57926d114439b705315_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 2268 wrote to memory of 1836	2268	2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe	28
PID 2268 wrote to memory of 1836	2268	2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe	28
PID 2268 wrote to memory of 1836	2268	2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe	28
PID 2268 wrote to memory of 1836	2268	2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_e782b6767779f57926d114439b705315_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1836

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
73KB

MD5
78c587ad8133483a5511937e7a6e5774

SHA1
959a6b5689971ddecde41302259ed0fd54fad05a

SHA256
a2e91b399956dd8cb758fa2b86d4d838115a010df9884b3520a29962668b21f3

SHA512
27e8b1c9708d2211fe4831f7429c8d6d2264fa269872e27ffaff2ec99b99e4df4e47bd7e219bc6be14afe8ba867ee79249e0d3ec6c77bc7ed6780368173bf88d

Download Submit
memory/1836-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2268-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2268-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2268-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download