6450e82eea8309e6cf2517170657d7ec5945762950d82b90a2b6cbb015f697f6

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/05/2024, 07:09

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General

Target

2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe
Size

48KB
MD5

f6283fba06d0b7bf46249db49c584da1
SHA1

b44145aa2947d3eedd1b2d5bb451d7206d670219
SHA256

6450e82eea8309e6cf2517170657d7ec5945762950d82b90a2b6cbb015f697f6
SHA512

e6647996d4dfe76c632b31f0a95deb3adaf8b6d683ce2dd09c1668bdd601acdfaa1c742d2a6a6b47d3a80b0c0dbacc31070c4d28faeba355e91a05b57af739f8
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8Lu:79mqyNhQMOtEvwDpjBzckqSuK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015bb9-11.dat	CryptoLocker_rule2
behavioral1/memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3024-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000015bb9-11.dat	CryptoLocker_set1
behavioral1/memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3024-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3024	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1924	2024-05-20_f6283fba06d0b7bf46249db49c584da1_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 1924 wrote to memory of 3024	1924	2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe	28
PID 1924 wrote to memory of 3024	1924	2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe	28
PID 1924 wrote to memory of 3024	1924	2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe	28
PID 1924 wrote to memory of 3024	1924	2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-20_f6283fba06d0b7bf46249db49c584da1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3024

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
48KB

MD5
9cab81fed2b70a8eb8a8ccf14770f7d5

SHA1
4246e04d58e6c495c111b5412c28e5e4b864fed3

SHA256
5a64c327116d891dba6247623f38d8d66c4a8105a55b70bf171f84df87e315ed

SHA512
aee138d9467b3761ef3e815b51675cf24020bb4d90f8e7d7dbeb71969e283437c883a46eb6873e6194b1316d14ef7db0b4f7c4f0cff067acb2a2425916d7f17b

Download Submit
memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1924-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1924-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1924-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3024-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3024-18-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3024-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download