7562d7167f92e1d8e730e18eeb5ab3af70b7b9f7ad01962f692da3a575fe5093

Analysis

max time kernel
133s
max time network
144s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 13:28

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General

Target

2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe
Size

46KB
MD5

0ebcd28ad9f9f20440cfecfdc28ff34f
SHA1

e39e98d702fa9d81dc2aaa5c301434b0675803ea
SHA256

7562d7167f92e1d8e730e18eeb5ab3af70b7b9f7ad01962f692da3a575fe5093
SHA512

7d95245586dd67c3f2f68bf6571b62b822c495ddf568471459a145192e87fe7829ab0598126c600b7e7bd1f8c13d3767c74eb8a3ce9ed01b50ea0d689c3e8aa1
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvcjpEypAo:79mqyNhQMOtEvwDpjBzck6p3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2772-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000900000001222b-11.dat	CryptoLocker_rule2
behavioral1/memory/2772-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2912-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2772-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000900000001222b-11.dat	CryptoLocker_set1
behavioral1/memory/2772-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2912-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2912	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2772	2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_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 2772 wrote to memory of 2912	2772	2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe	28
PID 2772 wrote to memory of 2912	2772	2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe	28
PID 2772 wrote to memory of 2912	2772	2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe	28
PID 2772 wrote to memory of 2912	2772	2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_0ebcd28ad9f9f20440cfecfdc28ff34f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2912

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
46KB

MD5
ffdf53ff12eb810937106f2a4ad77119

SHA1
9aa5f42d1c32c322738dfcb2e04b76ab74558d64

SHA256
afaca6a3dec0ff79708eb98d4b0bff9888876cd381d6275b988d5176a8da88a5

SHA512
11e5a394821ccf7c14cce23d28f1c654216cad91a9bcd380cbcd504df3e7966dc20eb1f342b795401ff4b837f8e689bde682adbdcd43153fc87227472f7daebc

Download Submit
memory/2772-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2772-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2772-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2772-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2772-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2772-13-0x0000000001EF0000-0x0000000001EFF000-memory.dmp

Filesize
60KB

Download
memory/2912-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2912-19-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2912-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download