a181ecdfb5f7f9203e2cffad01055f8e5bc086bc397962466c407ff7c975355e

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 01:18

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General

Target

2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe
Size

38KB
MD5

cfbbaf8bb8222dc111ee9a0c4bf0b209
SHA1

9e08bb2b9ce9b47ec39cf151f43a50019d103b24
SHA256

a181ecdfb5f7f9203e2cffad01055f8e5bc086bc397962466c407ff7c975355e
SHA512

c0e3aeb5d9a3b856925e4b74c16291f4cab3e5853bbdcca6ee277090b2132969a223400c3c143f1e8c5ba31a18da68957a0b24667700f2226f14562b2a153577
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4h6T:fT+hsMQMOtEvwDpjoIHh6T

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014909-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014909-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2440	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1664	2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_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 1664 wrote to memory of 2440	1664	2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe	28
PID 1664 wrote to memory of 2440	1664	2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe	28
PID 1664 wrote to memory of 2440	1664	2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe	28
PID 1664 wrote to memory of 2440	1664	2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_cfbbaf8bb8222dc111ee9a0c4bf0b209_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2440

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
38KB

MD5
28d06653e691865956ed11a1b4ee9829

SHA1
f2f51518fcd44ab7664dffb2eb00e0fecd222d25

SHA256
5d9eb507e54f0ebadbcdba7f6eafb0a172c105521269c9c3635b70b3c8489875

SHA512
b8669368b4476615d7d55dbf0ab15a8f4a2af71694dc87463fc11e6a936af09543e841ebbc6af3e2c765875d142598ef758db4fafc67a2b43794c3443c04c65f

Download Submit
memory/1664-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1664-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1664-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2440-22-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2440-15-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download