1c3aef30bf2bf78113e6ff202e29d6fc86173ab8ba1d6af07488b0fc72cfd76a

Analysis

max time kernel
152s
max time network
160s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 03:54

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General

Target

2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe
Size

46KB
MD5

c4f3e8c37d10adb34b1e5cddaac9aff1
SHA1

d35807966830f65cfdd6844fa9b265f2ecc3dedb
SHA256

1c3aef30bf2bf78113e6ff202e29d6fc86173ab8ba1d6af07488b0fc72cfd76a
SHA512

d311ef330a1ac5efa60bde8850739bae29bef4309933cc6f0871b4a409a476af204ac0fb826a57df4766307a121269051650c30445c7ffe989fc1df564d09d77
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blvu:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012245-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012245-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2508	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2104	2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_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 2104 wrote to memory of 2508	2104	2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe	28
PID 2104 wrote to memory of 2508	2104	2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe	28
PID 2104 wrote to memory of 2508	2104	2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe	28
PID 2104 wrote to memory of 2508	2104	2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_c4f3e8c37d10adb34b1e5cddaac9aff1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2508

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
46KB

MD5
43ab81e8f76258e601697d840c4c8f65

SHA1
1a2f68d9fe9d4b0a6e9810d34ba0a5a3333c8829

SHA256
48d971f19da5f8db4d260803009e508122bf2509fd6f4c826c6c7be178e22e1f

SHA512
fc66e75c0f8b6922dd4c875420bcca17fff206e295fe8199ab52f54968060e52d6a24122ea3a23878b7f081295e08e3fb9704698df50b6a79ac6184ae25bf3e6

Download Submit
memory/2104-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2104-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2104-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2508-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2508-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download