35f8a4328b35a6f226e8865038b607f29ef28d2bd6e2059c07161447ccf2d54f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 07:36

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe
Size

122KB
MD5

8e15acd883955f8c2b6d84a8ed8d9676
SHA1

ab4d477aac7429bbf5881de67bbe984d9c262212
SHA256

35f8a4328b35a6f226e8865038b607f29ef28d2bd6e2059c07161447ccf2d54f
SHA512

43727f1803f9bcf405412874c8e2caa5acd089116d55b6356f2f71214efbc9778a5936706e467a14f68ea03f86865884040d72f0fb0fc5bba3adffa379f75177
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMg5:u6a++OtEvwDpj6zt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001224d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001224d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_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 3028 wrote to memory of 3012	3028	2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe	28
PID 3028 wrote to memory of 3012	3028	2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe	28
PID 3028 wrote to memory of 3012	3028	2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe	28
PID 3028 wrote to memory of 3012	3028	2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_8e15acd883955f8c2b6d84a8ed8d9676_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
122KB

MD5
9a1ba50004a44b18752f02202d968340

SHA1
357292ef4e020cad2caddb257330bbbc85ea49a8

SHA256
2f79652305ca68c53607f3e0ac91df6f0ba990df3e1dba4351cc6ea878b969c5

SHA512
ea8fdefc20d90d7eb037dc919c5cbf4f9d6962641893443ad17d14660550e0ea35bf27bb4d422b9bd01c65153fa80bcb804a9ce164ffe269b8617946fa053bd7

Download Submit
memory/3012-15-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/3012-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3028-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3028-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download