38e51cb6f45035f3476780d726fe058e588cc32a74a1d9427ac7ad53794036c9

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 04:03

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General

Target

2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe
Size

47KB
MD5

e7ca1c48b7765b3b42487307fc9a69e2
SHA1

105c529c42e86db3b7e08a0443d5d8066a61dad1
SHA256

38e51cb6f45035f3476780d726fe058e588cc32a74a1d9427ac7ad53794036c9
SHA512

a21b6d39aa7b3e5fd925d552aa34f07683d6d8cad155482aba17370a77d00ffd2ee05d7e657455d63d8d7a5e37ce5cf21a540ba37c8c6d3ac92dd060ef7e56d1
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRhI:xj+VGMOtEvwDpjy+TRhI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001228a-23.dat	CryptoLocker_rule2
behavioral1/memory/1232-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1232-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3064-24-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001228a-23.dat	CryptoLocker_set1
behavioral1/memory/1232-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1232-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3064-24-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001228a-23.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1232-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1232-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3064-24-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3064	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1232	2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_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 1232 wrote to memory of 3064	1232	2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe	28
PID 1232 wrote to memory of 3064	1232	2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe	28
PID 1232 wrote to memory of 3064	1232	2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe	28
PID 1232 wrote to memory of 3064	1232	2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_e7ca1c48b7765b3b42487307fc9a69e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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

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Downloads

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

Filesize
47KB

MD5
a3e12d1843cacbde57830a8114fb46d0

SHA1
07ef195df0b8f21c9885fc3e828ac815d45da9ae

SHA256
0ebbdd4662371d54c03379e934195be8fdbae4078e67577f2dfb351e1a5d8816

SHA512
6058eaebb69960fc6749307710afa30a0792cf2fcd15776220a1b75d6793f5a1c972f696834c523c74fafdb99e78fbeaa2b7de77969d7efa00114aa425608ed5

Download Submit
memory/1232-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1232-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1232-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1232-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1232-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3064-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3064-24-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download