5f41299aeb0b60e2e06bedc6f3f4ddb76328a2b71f424e34afdb2c0d82c31d88

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 23:40

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General

Target

2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe
Size

55KB
MD5

aa158387d7483d5a0e18ecaec2769ad9
SHA1

0c3e253e058910b410bf055fd14727cc93393bb2
SHA256

5f41299aeb0b60e2e06bedc6f3f4ddb76328a2b71f424e34afdb2c0d82c31d88
SHA512

be0e9dc5d5c93900c577433b3095c4b75a0a539628b8e640b1aeb57182dc310ccd77371016fa72f2f6da8b23e769186221f6c586dddb26f21db9e0a287d679f0
SSDEEP

1536:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ0Vs:X6a+BOtEvwDpjBOf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012247-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012247-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3016	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2648	2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_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 2648 wrote to memory of 3016	2648	2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe	28
PID 2648 wrote to memory of 3016	2648	2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe	28
PID 2648 wrote to memory of 3016	2648	2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe	28
PID 2648 wrote to memory of 3016	2648	2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_aa158387d7483d5a0e18ecaec2769ad9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3016

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

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

Filesize
56KB

MD5
3fcf233c56f025488907fe3856dac3d9

SHA1
d1a07f2fe4c194876da96bdb50d3cc14427cf26b

SHA256
90dd8a68c7dd2f2bda1e84b3de021ab72e8ea082116c3e7c112fae3fa7d522f5

SHA512
ce7a9b2282750fa20733c2a818e560c1a3130517365544dcf4e3f48deac417ac7d1b4202e8e93b89b5452610bc16dc5fdb8e1e3a8cb75cdf0805f4b48130bb79

Download Submit
memory/2648-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2648-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2648-2-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/3016-22-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/3016-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download