013f303a3eb05dd3625678c6c2ad16ac0557881467b7a748daba2f45bc0e3aaf

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 01:45

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General

Target

2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe
Size

67KB
MD5

597a0fd175b78346e4fa34306b2fd580
SHA1

819d97a8c9a13bfe1bd07736bf2aa9b4ff790156
SHA256

013f303a3eb05dd3625678c6c2ad16ac0557881467b7a748daba2f45bc0e3aaf
SHA512

5179ce6d432f2c9397b30e76869e37297851b9f1c0315d332f7bdf77e1412982b757eae37bd2978631ea7956f1a868399d0dea1f45b557f03b7b15f04abc31ca
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFIf:6j+1NMOtEvwDpjr8ox8UDEpN/jW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2232-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2232-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2232-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2232-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2232-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2232-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2944 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe

pid process

2232 2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2944	misid.exe

pid	process
2232	2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe

description	pid	process	target process
PID 2232 wrote to memory of 2944	2232	2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe	misid.exe
PID 2232 wrote to memory of 2944	2232	2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe	misid.exe
PID 2232 wrote to memory of 2944	2232	2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe	misid.exe
PID 2232 wrote to memory of 2944	2232	2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_597a0fd175b78346e4fa34306b2fd580_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2944

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
68KB

MD5
ffbfb6782198901944bbcd94e81ed627

SHA1
704c0a1a39395a229f850a300e96cfa4786ba344

SHA256
e7d44dd7bc3ee9346e252c798477e4ccaf08de217edee4c254ef096f8784e75f

SHA512
710ed360b0b2757ead5ebc7c158f16901fe77d719d88d1ee97e9c57894e4a9b7156237dc842c38e28d42131519c0cff1e1ee5bd6f4e13f9c4cec8a5159f8685f

Download Submit
memory/2232-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2232-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2232-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2232-9-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2232-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2944-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2944-25-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2944-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2944-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download