5261d38d8be4a4bed151149826950a2d9fccf70b5a1acec92bea5825ec30ef5c

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 15:47

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General

Target

2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe
Size

83KB
MD5

8ee06708a2db40e643e36c7133463ec6
SHA1

877ef1387003bee860c76efef024d77b4b2aea88
SHA256

5261d38d8be4a4bed151149826950a2d9fccf70b5a1acec92bea5825ec30ef5c
SHA512

0b035c0dade9ec6fe2315d667143e30be003555b0f45d4d921e512754078722a32f314db7eda76b05330841b53920f9733a6fec4d63f22330b26175f491dec9c
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrpW:TCjsIOtEvwDpj5HE/OUHnSMK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2848-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2564-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2848-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2564-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2848-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2564-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2848-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2564-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2564 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe

pid process

2848 2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2564	misid.exe

pid	process
2848	2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe

description	pid	process	target process
PID 2848 wrote to memory of 2564	2848	2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe	misid.exe
PID 2848 wrote to memory of 2564	2848	2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe	misid.exe
PID 2848 wrote to memory of 2564	2848	2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe	misid.exe
PID 2848 wrote to memory of 2564	2848	2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_8ee06708a2db40e643e36c7133463ec6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2848

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2564

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
84KB

MD5
e94a90239525154421d6a858ef659582

SHA1
e1f9fd10ff9998e10a5125b79113b5e8d4cf3865

SHA256
4b4d0b488e54b03a7684dfbb58b64cedab41491e7f33b1b0a06ba9c9d78473a1

SHA512
1074293ff8a946702b9377acd027fd105cc413724c5d72448e5dfc5de84faa140e170fffdb8ee0475b859c744c184f3a91fe7a1863579ca0224ef51900b53515

Download Submit
memory/2564-18-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2564-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2564-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2564-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2848-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2848-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2848-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2848-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2848-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download