7f8981d59103e0ebff39ab711b40b4735b4ad85049750f0ed4d43b43c4abda68

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26-01-2024 02:32

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General

Target

2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe
Size

52KB
MD5

7605649b80373a05198314d80f696a55
SHA1

522b7db1a42c2ffe2d5ce6946cedd8b532529a03
SHA256

7f8981d59103e0ebff39ab711b40b4735b4ad85049750f0ed4d43b43c4abda68
SHA512

e57a3e52a96259d2e770842274f51362516276c5cc65e3368516bbedd995b2f03364b1ed4e7002833a157d313f2d06b340b73576a5a1ddc26538a9f735bb8c43
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2LJP:X6QFElP6n+gJBMOtEvwDpjBtE1yILJP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001650c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001650c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1580	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-01-26_7605649b80373a05198314d80f696a55_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 2224 wrote to memory of 1580	2224	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	28
PID 2224 wrote to memory of 1580	2224	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	28
PID 2224 wrote to memory of 1580	2224	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	28
PID 2224 wrote to memory of 1580	2224	2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_7605649b80373a05198314d80f696a55_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1580

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
53KB

MD5
80ff80c9312b2ded6d0fd1fec76a0518

SHA1
be2762aba6ae43a7dbd66d56f820b9d05bca380c

SHA256
c2864522cfef82ee682fbec2861c380898d23da11a9de1944f29e1bf7d46ecb7

SHA512
ac53bf7f38f15c192ca74fd3f06d7aa921e7bb3aef86d62e84bb9cf8ca1daaa70b89d5e8c4dbdfcc6fae5bc8abea1887cda4eb4be4748234a32c81b8a3e19255

Download Submit
memory/1580-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2224-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2224-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download