91df75fefa6f723a3d4414d1c52ff035d2195f73c07328bc8dfed8bd0cea750f

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 16:57

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General

Target

2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe
Size

75KB
MD5

b3b10edc9e19a61c8fcabfaf15b67858
SHA1

8204267f51bead7baa170aeb955b99953440097b
SHA256

91df75fefa6f723a3d4414d1c52ff035d2195f73c07328bc8dfed8bd0cea750f
SHA512

224ee29848924c3ca9d1205f8f1d796452b3f7dc424ee2fbe92693b7224f171f7c69b5158fbb1c957bd0846bf6d3f74429a9b56c5e8557afcf9582a626f6de3c
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siz:X6a+SOtEvwDpjBZYvQd25

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2116	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_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 2368 wrote to memory of 2116	2368	2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe	28
PID 2368 wrote to memory of 2116	2368	2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe	28
PID 2368 wrote to memory of 2116	2368	2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe	28
PID 2368 wrote to memory of 2116	2368	2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_b3b10edc9e19a61c8fcabfaf15b67858_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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\asih.exe

Filesize
75KB

MD5
b754ba5c6336dd8520cc389e47ef92bb

SHA1
b0fde6f6cef2ddc8589d0960f8bce1820044bba9

SHA256
6a8596b86e41395cf077cffba1ec4a3772268e4e9caa1c350f7fa553000ac7d8

SHA512
1868b300f9ae93f2bcf87a850b31b5aed50d554f2f752f9e3a2e970127cdb22f35b6467e792f6abb5c80a1eb4d8978d3fdd5f253653b890ac118363c83b14dbf

Download Submit
memory/2368-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2368-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download