cfc3b89924427ebfbc3239ee201b66050b2d8fbd6365b842563dff86ec7cd7da

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24-06-2024 09:53

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General

Target

2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe
Size

45KB
MD5

e7538291ce50edb0de475e58a2d97425
SHA1

fbca3b9150a7f93638f0706f120d4ff9a4fe8433
SHA256

cfc3b89924427ebfbc3239ee201b66050b2d8fbd6365b842563dff86ec7cd7da
SHA512

96d2cff8a1ea7b5f97ba96e989b92cdf18b8d55c2e303b4b4ced1ef2308dd1fb5356e28e4cbafa6b9141c52770ab4a24050244647503740dc72a25844994d2db
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk3b+NY:bm74zYcgT/EkM0ryfjd3WY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1992-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000013adc-11.dat	CryptoLocker_rule2
behavioral1/memory/1992-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2880-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2880-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2880	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	2024-06-24_e7538291ce50edb0de475e58a2d97425_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 1992 wrote to memory of 2880	1992	2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe	28
PID 1992 wrote to memory of 2880	1992	2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe	28
PID 1992 wrote to memory of 2880	1992	2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe	28
PID 1992 wrote to memory of 2880	1992	2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-24_e7538291ce50edb0de475e58a2d97425_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2880

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
45KB

MD5
8efd323a871d258e216107f1c5e8f212

SHA1
750147f4c7b026a4dc49d1853b76fd2d90c2b4f0

SHA256
903c4bb9b14a1e6e87f5360f7a7b34788790fd9c7a6d09f1b82bdaea662757e5

SHA512
34d1ba604fab4a745da9e0e515563ac0a08570bf7f6cac2a75392ce6972ba097cc0258d425a577bd49ca367f920262aa9adbc3d21e10b7171147fe228c881c39

Download Submit
memory/1992-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/1992-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1992-9-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1992-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2880-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2880-25-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2880-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download