6f9813abec8acb8b5522d235a8f5e076eeea0eff6389e4b9fbab642f760bc500

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 00:32

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General

Target

2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe
Size

65KB
MD5

23ff47b71922543d356dbb35045022f0
SHA1

d715d6c0039416312e3d15bf4e3a8717029fbad2
SHA256

6f9813abec8acb8b5522d235a8f5e076eeea0eff6389e4b9fbab642f760bc500
SHA512

03e1aceedae1fde0fba337d936606d635c1079714f19baa22b87dddb3314ad44e259a1c288858f35e44a1ab99a7ffe7a7b0d84f4c7385936d4d8bfd9f4c98ffd
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEMoNUxc:6j+1NMOtEvwDpjr8ox8UDEh2c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2004-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2004-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001224f-15.dat	CryptoLocker_rule2
behavioral1/memory/2540-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2004-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2004-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001224f-15.dat	CryptoLocker_set1
behavioral1/memory/2540-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2004-1-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2004-14-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c00000001224f-15.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2540-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2540	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	2024-03-19_23ff47b71922543d356dbb35045022f0_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 2004 wrote to memory of 2540	2004	2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe	28
PID 2004 wrote to memory of 2540	2004	2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe	28
PID 2004 wrote to memory of 2540	2004	2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe	28
PID 2004 wrote to memory of 2540	2004	2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_23ff47b71922543d356dbb35045022f0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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\misid.exe

Filesize
65KB

MD5
ce31216557e8b5dab01ba169bb86315b

SHA1
e94bf394ae439f4cab79ab1272af84a507bf99ae

SHA256
2facd24ed96f4141a65e0c89fb72c9736b7d888ce102850723cafa356678f1fd

SHA512
4c971eb50b19c303451e361ec7a5d9725ca1f9918a493b7c0a205476d874819c450e41d20557a6c89f4e5b6b246fd8eef11b82a5a5da8c06cc9b5eb2dc54f249

Download Submit
memory/2004-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2004-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2004-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2004-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2004-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2540-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2540-21-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2540-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2540-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download