7890e2eb9882de372d872b61946bb80e7ebfa78e69178b8f81b0fdc78df05887

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-04-2024 08:02

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General

Target

2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe
Size

52KB
MD5

90a46d06ba1d029f110030ee752f5b90
SHA1

b426595b6aa76ae0ff8c1b4af57b612bf021fa99
SHA256

7890e2eb9882de372d872b61946bb80e7ebfa78e69178b8f81b0fdc78df05887
SHA512

a79aa5f5e2f2005cee312fbe4ecf13ad2dbe4de00e873d9ba19f8ce3c784def1e7e03abf7a6c05fdcbed334aedbd56ad8f4b73fbd61f784b4b369eb934e7a437
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CS4Gjj:bgGYcA/53GAA6y37Q6dI+d5QG3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2892	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	2024-04-22_90a46d06ba1d029f110030ee752f5b90_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 2508 wrote to memory of 2892	2508	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	28
PID 2508 wrote to memory of 2892	2508	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	28
PID 2508 wrote to memory of 2892	2508	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	28
PID 2508 wrote to memory of 2892	2508	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2892

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
52KB

MD5
9c55d20a52b74899651a9d2d5d8e85da

SHA1
8fc7298d2ca53d9548d8b7addd0c96c2a30d7e02

SHA256
2c59ccf76b1981ab7cb82baf727c17f76d1a3ece9d452bd98d4fa8bfa8577f83

SHA512
1a3eb13b52b04a43db391b4a41af28970b8fc189ab2c6ee48d62dde75f75995f7d8b72335b89dcd4fbe2c841c980be6813e661cd2a919913f7be21e4dfaa1bcb

Download Submit
memory/2508-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2508-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2508-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2892-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2892-22-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download