c2a6a49a0bd7fd98926b2d07a2069aa243107410ca36a890ae200cb0e97fce17

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 00:38

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General

Target

2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe
Size

82KB
MD5

fd0f62ea6036d0f667ad9e5192d3f7cd
SHA1

ebf8081130342e29c6c8779c835e8b7702d54568
SHA256

c2a6a49a0bd7fd98926b2d07a2069aa243107410ca36a890ae200cb0e97fce17
SHA512

52c64ee4eff128f2cc8418a31552f828f71f0ff52db50ae4ca603b39745170088a92b90c5c237a175bf180eff1a8a1a1dc3474cea960c08b32faa95a287b2a35
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPFH+V:V6QFElP6n+gMQMOtEvwDpjyaLccVNle

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014826-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014826-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2228	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_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 2356 wrote to memory of 2228	2356	2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe	28
PID 2356 wrote to memory of 2228	2356	2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe	28
PID 2356 wrote to memory of 2228	2356	2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe	28
PID 2356 wrote to memory of 2228	2356	2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_fd0f62ea6036d0f667ad9e5192d3f7cd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2228

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

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

Filesize
82KB

MD5
238b5c1c48ca2584846df61be73f2a59

SHA1
017a324a968adfc1be8b246b8636d9a38669bc10

SHA256
ccc27208628a98c823789cb39f92c81884f73a2f44b1662b48da6b40d65c01b5

SHA512
fbc7e479a6623e8f6dc9ebd88fc7f2a6e178895a9d985da80a0d34e21e0428630102a0f82c7f6843d4c442efa0f5ec8e97b4b2ebf844b4f46ad270c8480361ae

Download Submit
memory/2228-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2228-19-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2356-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2356-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download