48957683514457bc14b440d8df1c23a9d945c2115e60715db0c1091807e0bd95

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-04-2024 06:32

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General

Target

2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe
Size

40KB
MD5

6d82ae3af24a48b037c000d0c863f4fa
SHA1

437bdbc33e85bcba491613ea63eebcddcda10905
SHA256

48957683514457bc14b440d8df1c23a9d945c2115e60715db0c1091807e0bd95
SHA512

f8b25116b4652f056b933f912b36c3eb1c2fe212bf2be0299f044c7bfa152d32f79dd1de9a90fdfa6bfddf6881e28cabda59850b49107b10a0ca33fd89937eed
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLNWS:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2868-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000013143-11.dat	CryptoLocker_rule2
behavioral1/memory/2868-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2808-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2868-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000013143-11.dat	CryptoLocker_set1
behavioral1/memory/2868-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2808-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2808	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_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 2868 wrote to memory of 2808	2868	2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe	28
PID 2868 wrote to memory of 2808	2868	2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe	28
PID 2868 wrote to memory of 2808	2868	2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe	28
PID 2868 wrote to memory of 2808	2868	2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_6d82ae3af24a48b037c000d0c863f4fa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2808

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
40KB

MD5
aae57781879e818585ec08064a4b933d

SHA1
8415871e32f2bd686843903a4e2ba16ec0dfd259

SHA256
944627b029060459bcb955e244b7c76e26c88533148df22a1fb43ca6159362c5

SHA512
8efecc876c37539f4016aee9e0df4dd89bbf1bda7cfece0db229eebfb060a3cbe38738bab3bb1896b3e6381ef7d3291bd777479e66d54f48852c85869c12b486

Download Submit
memory/2808-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2808-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2808-24-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2868-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2868-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2868-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2868-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2868-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download