b3b17d1295687faebf3c022e64421a44f85ee7975a152ef7508372e1e3395c4a

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:35

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General

Target

2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe
Size

38KB
MD5

616793b5b559223bfe9895bd287f215d
SHA1

a5f30df2848a138fd6a34bed7961e051be1029c4
SHA256

b3b17d1295687faebf3c022e64421a44f85ee7975a152ef7508372e1e3395c4a
SHA512

5d8eab074841257ff554f69b75d78e54030cd9086c32c983b41648198b3b0d1e1df0625b1971c7c97fdfc361bd5227c9bfd8e6af890182a2fffd323966f8a2ff
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4qa8:fT+hsMQMOtEvwDpjoIH/8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Detection of Cryptolocker Samples 1 IoCs

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

3064 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe

pid process

2400 2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3064	misid.exe

pid	process
2400	2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe

description	pid	process	target process
PID 2400 wrote to memory of 3064	2400	2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe	misid.exe
PID 2400 wrote to memory of 3064	2400	2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe	misid.exe
PID 2400 wrote to memory of 3064	2400	2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe	misid.exe
PID 2400 wrote to memory of 3064	2400	2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_616793b5b559223bfe9895bd287f215d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2400

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 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
38KB

MD5
f7bb0f022a50da3e535f304172dec2f6

SHA1
8af5ff8dd5e7b7b3841d5d27f3af84e5d180a334

SHA256
a6ed817cd039ae4a54438d3bdc7f35b2bde39ee70bbbef96067907152a30234b

SHA512
513aa658e4d7cb3083a90d55e5a2868a99e28cf9360a420efa181ed0b68598a98275fdd4ac2364295b8b1c5e2f69a3b25daf598c5c5e8321e028d94a03890d9f

Download Submit
memory/2400-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2400-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2400-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3064-22-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download