f194ca742529b62d5b763cd1b3a9dd2df2a80e545328e8d3ad50df02e6c88fba

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 23:24

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General

Target

2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe
Size

389KB
MD5

54866f2df921dd01f2ad8f0c4e9243b4
SHA1

59774710e8e2dac76bc9b6e6d82cd06ae0164ddf
SHA256

f194ca742529b62d5b763cd1b3a9dd2df2a80e545328e8d3ad50df02e6c88fba
SHA512

159e640bdd09eb4f1f529d33023aa53e9388a3413ff2085e899378247d5719e494bb07c634929a6e8f0beee3af2afe3bbb6d25b053b272de831d91af98024f05
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzX0:nnOflT/ZFIjBz3xjTxynGUOUhX0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3040	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2924	2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_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 2924 wrote to memory of 3040	2924	2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe	28
PID 2924 wrote to memory of 3040	2924	2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe	28
PID 2924 wrote to memory of 3040	2924	2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe	28
PID 2924 wrote to memory of 3040	2924	2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_54866f2df921dd01f2ad8f0c4e9243b4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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\hasfj.exe

Filesize
389KB

MD5
34fb997c7e5892f4781bd311e31ba277

SHA1
efbce1655709fd775b9922bd34c5b91087af09fb

SHA256
568eb3bfad8af24bb4418d383da606d501d10c5a356aceb552d9b080c6131f74

SHA512
b73f8e16e6effea72dad3a7bbe5c3f6f86f1db547fe59996affb44562b414eb1f1811c75d80d02540dde034020add0737c2d52e68724b97dd55a182c622e2ec7

Download Submit
memory/2924-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2924-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2924-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download