825d4bb20575e0b3aeec3736dcf8ec27a475581edab12f1a8218ac1553b77aa2

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-05-2024 03:40

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General

Target

2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe
Size

61KB
MD5

8fb0a5f776aabcb7ac415bf5c438b48a
SHA1

d2c5caba5edd697c9fc8fdb28f6e1818cde32d63
SHA256

825d4bb20575e0b3aeec3736dcf8ec27a475581edab12f1a8218ac1553b77aa2
SHA512

5ca5cabad12b931dbbd2ec88ff8bdf4af27f79ceb167e5fe762726347368d4214f9cab6328fedc8fca8424c04c6d909e82986f1e175f64a7d950e4306abd1b6e
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xXc6:X6a+SOtEvwDpjBrOh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001450b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001450b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1252	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2928	2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_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 2928 wrote to memory of 1252	2928	2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe	28
PID 2928 wrote to memory of 1252	2928	2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe	28
PID 2928 wrote to memory of 1252	2928	2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe	28
PID 2928 wrote to memory of 1252	2928	2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_8fb0a5f776aabcb7ac415bf5c438b48a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1252

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
62KB

MD5
b0b4d0f2cdc8fadd7382489c60505e0e

SHA1
d1918ff9bb7f290d7b050d363979812196198852

SHA256
52840a0851cdd439e76cf7444818b2dd56579aa1f9f45852ade92e7723f1cb83

SHA512
f9b89d855e43e0813070f60f371c6a0c6f27a67d5dda3f77ace9f1f1f7f444c6acd60a24e4987422e0211e7c592daed12817c69e1606726020944557bd61c51f

Download Submit
memory/1252-22-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1252-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2928-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2928-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2928-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download