ff4f9ba8d526e944f4cee6b97071a4665ce475d9bca449e4f781f0aef242281d

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 16:45

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General

Target

2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe
Size

88KB
MD5

a62e1c288e65a8267ca981061709c2a8
SHA1

4b81b3539413754dfec46bfca20200a0e4101fde
SHA256

ff4f9ba8d526e944f4cee6b97071a4665ce475d9bca449e4f781f0aef242281d
SHA512

9613687af1d4be7cd4d5ff4b7668f71ee7e04b7b940df8856066a97e91883b460e8989cb90f73d3d6736c93287d8bb7095813465a376450b33f5a3ed1b5f64d3
SSDEEP

1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQoY:vCjsIOtEvwDpj5H8zPsz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001232d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001232d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2964	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2556	2024-02-19_a62e1c288e65a8267ca981061709c2a8_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 2556 wrote to memory of 2964	2556	2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe	28
PID 2556 wrote to memory of 2964	2556	2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe	28
PID 2556 wrote to memory of 2964	2556	2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe	28
PID 2556 wrote to memory of 2964	2556	2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_a62e1c288e65a8267ca981061709c2a8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2556
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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\misid.exe

Filesize
88KB

MD5
ece5d26e0e804bb7b08bf01308283bb9

SHA1
db98346c511b5624d12d3922139deba27a54c066

SHA256
f36578122dba707cf48c85ac5a5dd7845dbbc46e11873d8822a8745eff7a59ee

SHA512
8eedf950bf418d698ca86be7f335dd629354c038bae352a1935c92b7c780e0193ade7661e5bf307b58c6ac34e7e0bafb387322a112c8c13449eee2fedcf1405b

Download Submit
memory/2556-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2556-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2556-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2964-15-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2964-22-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download