1c5e131277676c4d465782da0459dab5d3a2a4a7ed779f4d6dd61a755de35857

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
30/05/2024, 12:36

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General

Target

2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe
Size

61KB
MD5

f79691dece111eddd34fb001718b7452
SHA1

ffa62e7fb9ce6c84e7a522985be63229f7b3c254
SHA256

1c5e131277676c4d465782da0459dab5d3a2a4a7ed779f4d6dd61a755de35857
SHA512

9b64e8d256a43759d9c4e5906ea8b40288984a8b63d8d3db761882a0a2a0c285eaa3a0b4d7d7b960c987ef21ec1d46862ac8644f6514e4541b13d1c2fab383e4
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsi0:BbdDmjr+OtEvwDpjM8l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001228a-11.dat	CryptoLocker_rule2
behavioral1/memory/3012-13-0x0000000001DD0000-0x0000000001DE0000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000c00000001228a-11.dat	UPX
behavioral1/memory/3012-13-0x0000000001DD0000-0x0000000001DE0000-memory.dmp	UPX
behavioral1/memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2244	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-05-30_f79691dece111eddd34fb001718b7452_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 3012 wrote to memory of 2244	3012	2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe	28
PID 3012 wrote to memory of 2244	3012	2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe	28
PID 3012 wrote to memory of 2244	3012	2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe	28
PID 3012 wrote to memory of 2244	3012	2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_f79691dece111eddd34fb001718b7452_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2244

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

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Downloads

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

Filesize
61KB

MD5
71aa54c800f57a0797de7e6c23102b38

SHA1
bd6da2a2409130167d61b40c3f31066169fe9ffc

SHA256
6c46a48ee3891e608728e88c9a441c30c48a287ffcf7bf1e86d2a6bd69abbbe2

SHA512
44a1e0f1ec1413a2fbc16edaa9e9086d51889ec32df21f83da348ba7daa81d056964325a9fd008de851188efb8649c83b6daaaf6385d641cc23ceb29a1ce9535

Download Submit
memory/2244-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2244-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/3012-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-13-0x0000000001DD0000-0x0000000001DE0000-memory.dmp

Filesize
64KB

Download
memory/3012-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download