0a787667864ef384d3c4b6b7c70f4c91718527e3792eaaf8dbbe12fff0d92235

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-02-2024 18:54

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe
Size

44KB
MD5

e5b36f5189801918e515302eec3a7ef6
SHA1

746aa18f5289386714b65cd7134d146028b42fec
SHA256

0a787667864ef384d3c4b6b7c70f4c91718527e3792eaaf8dbbe12fff0d92235
SHA512

6eace2135d862ce6bd2dfcd7a5d421f99aad04b0c1747362c86fb5f55dfdf9defea005ebae090839521a8644efc6434f3db426fc4e8849a4155e5c2b813828b0
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhXSZ:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1916-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0007000000012281-11.dat	CryptoLocker_rule2
behavioral1/memory/1916-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1916-13-0x0000000000650000-0x000000000065B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2240-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1916-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0007000000012281-11.dat	CryptoLocker_set1
behavioral1/memory/1916-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1916-13-0x0000000000650000-0x000000000065B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2240-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2240	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1916	2024-02-18_e5b36f5189801918e515302eec3a7ef6_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 1916 wrote to memory of 2240	1916	2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe	28
PID 1916 wrote to memory of 2240	1916	2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe	28
PID 1916 wrote to memory of 2240	1916	2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe	28
PID 1916 wrote to memory of 2240	1916	2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_e5b36f5189801918e515302eec3a7ef6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2240

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

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

Filesize
44KB

MD5
d79ca7ed63d57002478b21ab8e187b48

SHA1
3967700d36caf2eafeb86f672fcbb5a9f5f4f11c

SHA256
ef71c3c0ca7f33b83d8407a4a51ffd68963fd11d789982283167b5b8891d1ad4

SHA512
024ea1878c7a47e1be5f6141fcc985aa854d591c507e6679ae84fe4fea14c394dbe81a20cb8c12a72aed83254b377d51359a57d21856b15fbe3e4c14b79508fc

Download Submit
memory/1916-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1916-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1916-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1916-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1916-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1916-13-0x0000000000650000-0x000000000065B000-memory.dmp

Filesize
44KB

Download
memory/2240-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2240-19-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download