e12e18289caaa5a9bd2d4d7b6acb59f5d5f60e824c4b4e454fb58cde0f1db10d

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:50

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General

Target

2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe
Size

96KB
MD5

cf3eaace859fbe02845560114ef7b236
SHA1

52af03efca73c71d92fbec44c30132bae2ad64b7
SHA256

e12e18289caaa5a9bd2d4d7b6acb59f5d5f60e824c4b4e454fb58cde0f1db10d
SHA512

61a15abaf8b555d86fb44494a9635761063356587f4c8ee30018be0dfc61ac1d4580cc87849e3e78ed875f6cd78808367438067389d46ce86f217daa8fd6e4c7
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp4:V6a+pOtEvwDpjtz7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2364 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe

pid process

1700 2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2364	asih.exe

pid	process
1700	2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe

description	pid	process	target process
PID 1700 wrote to memory of 2364	1700	2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe	asih.exe
PID 1700 wrote to memory of 2364	1700	2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe	asih.exe
PID 1700 wrote to memory of 2364	1700	2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe	asih.exe
PID 1700 wrote to memory of 2364	1700	2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_cf3eaace859fbe02845560114ef7b236_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1700

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2364

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\asih.exe

Filesize
97KB

MD5
a576f05e002de540f2de122f2f555a27

SHA1
048b94d7ddc807e0376435489ea236e8d4769e30

SHA256
09596099284e12922817f94cca6582148a60055f4c8cfd5d737f93474d277abc

SHA512
a6854801d229ac545ef735a5a1304f133e00ad77c60334d8cea16b4bf465433718aea891c7f222fe4f0fb925c0e64e102e3dfb4267c67f9ca0182a08a96c6990

Download Submit
memory/1700-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1700-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1700-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2364-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2364-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download