d06bf745229ba795476d5d3330efbab652677818fa12c79ad541176645353b0f

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/04/2024, 23:33

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General

Target

2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe
Size

36KB
MD5

c36d8a4d25cf403dd2bd352720953201
SHA1

ef7de340e4543e8ffb2143cd73d2f58a808c58bd
SHA256

d06bf745229ba795476d5d3330efbab652677818fa12c79ad541176645353b0f
SHA512

8b3dcf86290372218d71e92b4aedba5f34cbdeb7d29cf588cd77e009d5fd685b3f1fb28d7e52261adb6f0fb4e1ea2396954745bb2f56686fa9d1d13b1dcfae48
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkY8:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012247-11.dat	CryptoLocker_rule2
behavioral1/memory/2696-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012247-11.dat	CryptoLocker_set1
behavioral1/memory/2696-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2540	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2696	2024-04-23_c36d8a4d25cf403dd2bd352720953201_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 2696 wrote to memory of 2540	2696	2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe	28
PID 2696 wrote to memory of 2540	2696	2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe	28
PID 2696 wrote to memory of 2540	2696	2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe	28
PID 2696 wrote to memory of 2540	2696	2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_c36d8a4d25cf403dd2bd352720953201_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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
36KB

MD5
1ffc104be943f2d54a6c018d92faa833

SHA1
906c255cde470d3d61c675571f89abf8a72edb7d

SHA256
bfa49db22685849da11e624d728c2e3c1afdf24bd884beaae1abbd618eeb366c

SHA512
980e009d9f1d530f74e813d87ab1358b4051bdb9f1ee8b925928159f3c8f5e771d0679b9b4307b16cfee1410101afd9fc207429c60a9e559c4d24cd3f7e7c47c

Download Submit
memory/2540-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2540-18-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2540-24-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2696-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2696-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2696-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2696-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download