98d4553864c0b0694dd36d4a084f7580c6106f22216b242cd9ecac30a30e7a4c

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 20:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe
Size

41KB
MD5

949c4b374825e3a25aaabe4624ffe35d
SHA1

f4b4f191e68cad3802036b5518facb3881a4e990
SHA256

98d4553864c0b0694dd36d4a084f7580c6106f22216b242cd9ecac30a30e7a4c
SHA512

507267b90c50fd0d468c41383a9d5a24f44567ca48a650129a3c844657534a2488f1b404eca2e3ab46b1255f688144f117ea84f7e0c2718387bac07dd3f07b3d
SSDEEP

384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/Wcz0BVFHxztr:79inqyNR/QtOOtEvwDpjBKcmfxN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2212-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001226e-11.dat	CryptoLocker_rule2
behavioral1/memory/2212-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1340-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2212-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001226e-11.dat	CryptoLocker_set1
behavioral1/memory/2212-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1340-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1340	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2212	2024-02-19_949c4b374825e3a25aaabe4624ffe35d_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 2212 wrote to memory of 1340	2212	2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe	28
PID 2212 wrote to memory of 1340	2212	2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe	28
PID 2212 wrote to memory of 1340	2212	2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe	28
PID 2212 wrote to memory of 1340	2212	2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_949c4b374825e3a25aaabe4624ffe35d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1340

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
41KB

MD5
b50102938c1f26283aa747bc71eeea09

SHA1
c1c1e6a7006e2757b8a07efb881dab43dd80269b

SHA256
a07803d3084b12fd2c77da5c841cd9636bab6a009fa2d7e211a8e1a5a290d1b5

SHA512
3c6e358a9fed95a2935506d2603fd3bd91f0ae8dbf33285e3fe5325daa57cc63bd8c1d2242c611c8f586a0bdda859f0de23c410fdfd0e123ecbe69056c50813e

Download Submit
memory/1340-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1340-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1340-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2212-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2212-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2212-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2212-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2212-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download