cd9efc0eebd4f7eb532723f9c21d888bfe81053a81abb7261660269275c64cae

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/04/2024, 08:28

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General

Target

2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe
Size

36KB
MD5

9749a6f1af1757b24651132caa3e1f51
SHA1

85e84b994589decce315152c971c2706bcc9a1c5
SHA256

cd9efc0eebd4f7eb532723f9c21d888bfe81053a81abb7261660269275c64cae
SHA512

8b5a61f7ad6bdca2e80824417829b6366243ed0ff5177c3de6fbf089112d4145cec81ee2ef032888d30ab79fa7445a91fbe55e18f3a449d1a560bc5a0914b978
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4/u:fT+hsMQMOtEvwDpjoIHm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2392	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2736	2024-04-26_9749a6f1af1757b24651132caa3e1f51_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 2736 wrote to memory of 2392	2736	2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe	28
PID 2736 wrote to memory of 2392	2736	2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe	28
PID 2736 wrote to memory of 2392	2736	2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe	28
PID 2736 wrote to memory of 2392	2736	2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_9749a6f1af1757b24651132caa3e1f51_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2392

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\misid.exe

Filesize
36KB

MD5
183403d0ecb563df81a23011ccaed13d

SHA1
2644a635b2ecdd90ea1d176bb98ad4be1da62e24

SHA256
fb9a3645d372b15b7f7c56e36b78b3c3f330a5ad61ee6135a09d80d0450b9896

SHA512
2a48f22295b607095bfbf2c47b9d057512c2a937183b927d45d2908dc69f56d3ca53fdb5fe699df84a78893afcb0f16fbf41d7b54ccbfb9cdb0f6817871edc01

Download Submit
memory/2392-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2392-20-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2736-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2736-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2736-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download