7ea02f3ed324d180c1f50bf5d0e65805b6f7d7b1d086ab1476c00caf4e24bf68

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 16:12

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General

Target

2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe
Size

69KB
MD5

fb1439dcc749a2a9c887bb29c2caed56
SHA1

b71169311aa53f37781a79a7ec49b63e4e49c267
SHA256

7ea02f3ed324d180c1f50bf5d0e65805b6f7d7b1d086ab1476c00caf4e24bf68
SHA512

d15d5684b6afdb563da584ef81a2fe24bd64f3302e81561c96804e4018e680a2569a40183485c9f788ed402e16f845822858dc53985807505b8d2a4f01eaec34
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUsn:DW60sllyWOtEvwDpjwF85W

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2484-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x00090000000122be-11.dat	CryptoLocker_rule2
behavioral1/memory/2484-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3024-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2484-13-0x0000000002240000-0x000000000224B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2484-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x00090000000122be-11.dat	CryptoLocker_set1
behavioral1/memory/2484-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3024-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2484-13-0x0000000002240000-0x000000000224B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3024	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2484	2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_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 2484 wrote to memory of 3024	2484	2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe	28
PID 2484 wrote to memory of 3024	2484	2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe	28
PID 2484 wrote to memory of 3024	2484	2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe	28
PID 2484 wrote to memory of 3024	2484	2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_fb1439dcc749a2a9c887bb29c2caed56_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2484
- 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
70KB

MD5
b012df3bb9a28d78c51306d6946658f9

SHA1
39af9557b1bac312f5865a09c8c5c38fb817cf34

SHA256
d9be5355e423ca48913e1a29c515e136bf23e39017f2299b4d0fc61b18608df4

SHA512
c0e52e991badeab74a2f5d0071de0d7716a497d749d010822eb9a1172aacc2b46e7422511e802a661fd55be4d1d826f55230c185e874992e5f86c566ae427f80

Download Submit
memory/2484-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2484-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2484-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2484-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2484-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2484-13-0x0000000002240000-0x000000000224B000-memory.dmp

Filesize
44KB

Download
memory/3024-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3024-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download