859af5b84c5765827259d66c4b75a467c815703a4545b043e961ca99424f91e0

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/04/2024, 08:34

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General

Target

2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe
Size

40KB
MD5

eb9c4268b5afa193fb6baad2275c5be4
SHA1

e38e65a993d4a195a68206524ed9e6081c884321
SHA256

859af5b84c5765827259d66c4b75a467c815703a4545b043e961ca99424f91e0
SHA512

b9400ee5b3e13c2aa7a84b8417dd698216b17bbef3cf1d1f9297e9cd19129a1fa76c2e536835fe4c2abe6ffe75176d00ee52a27143adab6a462efbdef5a3fc0d
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuG:X6QFElP6n+gJQMOtEvwDpjBsYK/f

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012240-22.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012240-22.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2584	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1368	2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_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 1368 wrote to memory of 2584	1368	2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe	28
PID 1368 wrote to memory of 2584	1368	2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe	28
PID 1368 wrote to memory of 2584	1368	2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe	28
PID 1368 wrote to memory of 2584	1368	2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_eb9c4268b5afa193fb6baad2275c5be4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2584

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
40KB

MD5
538d028e2180e354705c4d9f003fae6c

SHA1
46335d09d36567b91bf52c02e59dff1e77232141

SHA256
d72a5064aa6b0abcaee8b5232ac8e167b90f7790568082d18f2abf3ea801e90b

SHA512
dedca9c67cdb1a59dd47e2c6bcaaee1428d818d5db7d8b301c3452efa2daaa3474caf185fe57021cee31196ff444c3e21cd6f442fa3d2a4d7e15f33e2c277ed9

Download Submit
memory/1368-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1368-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1368-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2584-20-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2584-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download