51a4341ce43d90df56468a4a2764fab298f5256312ffee16e80867528f335fd3

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19-02-2024 17:26

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General

Target

2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe
Size

34KB
MD5

2143481eab83e07a291850099fe1c104
SHA1

9db5987590aa9987c92c17697f4f7c8103849dd1
SHA256

51a4341ce43d90df56468a4a2764fab298f5256312ffee16e80867528f335fd3
SHA512

3080002bba98e59ebda6a74fe0e1b0ae28640fe9f7aede84228503dca70c39afe1f9c301d52bb2a3a782ce2b34b2cc7364dc4eaca49c4f33790f34d8007b1bcb
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUqMV6U8zKvGaLigYdO:bA74zYcgT/Ekd0ryfj86U8zbUYdO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014a5b-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1968	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
776	2024-02-19_2143481eab83e07a291850099fe1c104_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 776 wrote to memory of 1968	776	2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe	28
PID 776 wrote to memory of 1968	776	2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe	28
PID 776 wrote to memory of 1968	776	2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe	28
PID 776 wrote to memory of 1968	776	2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_2143481eab83e07a291850099fe1c104_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:776
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1968

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
34KB

MD5
d072812228e71236e81e2a44193f5902

SHA1
b4d7f1639f3833e0aba89ae0120d781440e6d9f3

SHA256
2d1a7d8ac358ecdbd3bdd85650421848ef5d59ca3dcf37ee65381a98e97f8742

SHA512
45dc7d6564f34e7dc9bba0589561172de1468d7a2f7dc135dec514aaabd781791a393f6665286b72d0bc9061d903082ece34193135edeb140ed8da5a906a2766

Download Submit
memory/776-0-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/776-2-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/776-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Filesize
24KB

Download
memory/1968-16-0x0000000001BD0000-0x0000000001BD6000-memory.dmp

Filesize
24KB

Download
memory/1968-15-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download