49d22793f668ae691847f1dd5dafcbfd70cc92a7ae5468bec2bafc2555451da4

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
01/05/2024, 10:25

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General

Target

2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe
Size

35KB
MD5

617e19ca8da2e49e6b7ee4fd8e099c65
SHA1

121499d04866a205eee73b0f32e814196dcb3a5f
SHA256

49d22793f668ae691847f1dd5dafcbfd70cc92a7ae5468bec2bafc2555451da4
SHA512

b044865561191aab9a1128d55bf12c150a2ddea165f8a6d168e2988a6afa8ee2204f55ce3d5dacd33ede16978d4bae9e265f0c2352ad3382265c1f840f6922a5
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lxJ:bA74zYcgT/Ekd0ryfjPIunqpeNswm6J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122ee-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2860	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_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 1876 wrote to memory of 2860	1876	2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe	28
PID 1876 wrote to memory of 2860	1876	2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe	28
PID 1876 wrote to memory of 2860	1876	2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe	28
PID 1876 wrote to memory of 2860	1876	2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_617e19ca8da2e49e6b7ee4fd8e099c65_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2860

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
35KB

MD5
f6b1d379f01dca31a46ab246dd59e33d

SHA1
c0f4fc31a6fe94b88846bb06b277726a984a23f8

SHA256
55d8b66fa00c07cb1f1430ab990b6c9d143920f66d546116bd62cef184c6bc93

SHA512
925bd9c34a34c9f92cf0c9aece49b0cf19c5f405f7bcc81f7efa3de1bf4b83138e857cbc07c6fb98c81ef95c1caa7d2100219276f57990a70d34dcd5cdb1a8ed

Download Submit
memory/1876-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1876-8-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1876-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2860-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/2860-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download