2a7ebd822999ee3d8603461679b5f8ae69add72355e8d3e54a21538d5b2e9b3d

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe
Size

36KB
MD5

95ee53b6ece64b988d7dd1874ed28094
SHA1

a7707d8e020bb7e4bca6994b4c8a912675978c87
SHA256

2a7ebd822999ee3d8603461679b5f8ae69add72355e8d3e54a21538d5b2e9b3d
SHA512

5632ac38e76ffc1155884c5ec2357851f12f70f1bf9e1791c874c0a60a9dd0fad35d8747abaf5c9d88421b146cd9a0d064f535f3874e131fa11ff3c8b6c10579
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLJ:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2664-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2664-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2084-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001225c-15.dat	CryptoLocker_rule2
behavioral1/memory/2664-13-0x0000000001E60000-0x0000000001E6B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2664-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2664-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2084-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001225c-15.dat	CryptoLocker_set1
behavioral1/memory/2664-13-0x0000000001E60000-0x0000000001E6B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid	Process
2084	asih.exe

Loads dropped DLL 1 IoCs

Processes:

2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe

pid	Process
2664	2024-01-25_95ee53b6ece64b988d7dd1874ed28094_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

Processes:

2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe

description	pid	Process	procid_target
PID 2664 wrote to memory of 2084	2664	2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe	28
PID 2664 wrote to memory of 2084	2664	2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe	28
PID 2664 wrote to memory of 2084	2664	2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe	28
PID 2664 wrote to memory of 2084	2664	2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_95ee53b6ece64b988d7dd1874ed28094_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2084

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

Loading Replay Monitor...

Downloads

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

Filesize
36KB

MD5
012118ea313f71797ee301da5c9feebe

SHA1
923da2abff53dccdbf6b741e17f58213eed4bc58

SHA256
0ce648058bedc42c5544fc454762f0cf086bebf5b29097d96321ad559ba0eca6

SHA512
ec389b4ce30343b22f1da391eebc0fce2af1ef6701e9a7cff7d28e05363318f4ba9d1cb3459bbeb83888763afe853ef1aca44034d7a4324f249deb7aefe0dfb1

Download Submit
memory/2084-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2084-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2084-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2664-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2664-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2664-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2664-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2664-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2664-13-0x0000000001E60000-0x0000000001E6B000-memory.dmp

Filesize
44KB

Download