919439028ea11e18e11d0e2a58e7c32e4f1a2c0fa769be638085e955cf260f39

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/05/2024, 04:23

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General

Target

2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe
Size

96KB
MD5

18da331e2d3bb209c53fe606b74584d6
SHA1

f1193dba4d7bf8db3b703a1e5074d4b9613d26fa
SHA256

919439028ea11e18e11d0e2a58e7c32e4f1a2c0fa769be638085e955cf260f39
SHA512

288df3aa7abc142121ca2b1b6a5a6f93b73e8f31ce51d2d0aba1260bb13b9a53d7dc07a5cefba479d9e6b0602023daabe370b79ac0b40cae04ed8fc4ffdb69c6
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgph:V6a+pOtEvwDpjtze

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000016056-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000016056-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2076	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-05-24_18da331e2d3bb209c53fe606b74584d6_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 2924 wrote to memory of 2076	2924	2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe	28
PID 2924 wrote to memory of 2076	2924	2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe	28
PID 2924 wrote to memory of 2076	2924	2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe	28
PID 2924 wrote to memory of 2076	2924	2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_18da331e2d3bb209c53fe606b74584d6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2076

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
96KB

MD5
20ccaf91f6c00674c489a9c4963c2ec0

SHA1
899516033226271124a8d67d4e5a1061a16b0d87

SHA256
07dc8312d9939d6577fe757140a777b69bf001a41c2a8f96d2e4c2c6672d8661

SHA512
17180f9fbac4faa5d987aa8a0ed3006ad600566855046a8b9d2e2461088b75a8577254665b40c590a8985caefdc55dd06a1f2d522ec0b6dc79c90da66200a54c

Download Submit
memory/2076-22-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2076-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2924-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2924-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download