7429f2e389cac58e55b91cad3edee8f3ef5afbc62029cc0c1b971c9208d9eb9d

Analysis

max time kernel
134s
max time network
144s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 16:52

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General

Target

2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe
Size

123KB
MD5

fde77ea14edd4bc45b9b38be150fcf5c
SHA1

b6e013ae317184526831541369f692de286f4aed
SHA256

7429f2e389cac58e55b91cad3edee8f3ef5afbc62029cc0c1b971c9208d9eb9d
SHA512

460b06f839f7b157bafdb24eb1de4c9ed01006156d8c145116a82917ba4d2305d132e3183338f2894cb6c8c080cac9e13fa4b49ba52e3773edba59f586eacd31
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgE3:u6a++OtEvwDpj6z2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001223d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2824	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2076	2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_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 2076 wrote to memory of 2824	2076	2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe	28
PID 2076 wrote to memory of 2824	2076	2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe	28
PID 2076 wrote to memory of 2824	2076	2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe	28
PID 2076 wrote to memory of 2824	2076	2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_fde77ea14edd4bc45b9b38be150fcf5c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2076
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2824

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
123KB

MD5
7063531f831fed1d4b8c64df2ae55240

SHA1
e99a85b86b568e1336878a7a49243687605f920d

SHA256
edad9293ca04d8c6de30a849e6f0f4a426adc05c6589bd74053ecd9cb9a1dbb1

SHA512
4ff037100aae3558ec3f916444673c300124ea9e976aeb26cef14106288fba1b2efa9acf5e6981a211f9c3663e136de48ca7108a2fdec5935681db542d3c80e2

Download Submit
memory/2076-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2076-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2076-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2824-15-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2824-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download