fc583575905287d149da53ccabb5b86ac44752e7a85d3bb97aff136f78944d87

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 10:42

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General

Target

2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe
Size

77KB
MD5

62f1b9ee71626af87d1b74eb7395a59c
SHA1

04b350a53bf3c08b75231d858f0ecd73c43b343b
SHA256

fc583575905287d149da53ccabb5b86ac44752e7a85d3bb97aff136f78944d87
SHA512

dc1038e3b1e9de22b1e9f51a37bb012a55876c9db3734a7c9b8bb1cc234df195bce6d686f7cba0ff7b2229489aa99f52e342f68d1de971af06718dbfb3fa7610
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuf8:vCjsIOtEvwDpj5H9YvQd2Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a88-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013a88-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2712	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2768	2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_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 2768 wrote to memory of 2712	2768	2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe	28
PID 2768 wrote to memory of 2712	2768	2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe	28
PID 2768 wrote to memory of 2712	2768	2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe	28
PID 2768 wrote to memory of 2712	2768	2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_62f1b9ee71626af87d1b74eb7395a59c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2768
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2712

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\misid.exe

Filesize
77KB

MD5
9e8795ff4d6e0734dc3540efa6b3e7d0

SHA1
a3e5a449d27e8f3533c471a7d6850edc532a7e09

SHA256
fd80e2435ee554526abc54200dbf6f41b2d48cdeea6c69d3d3057304de7870fa

SHA512
a7ebdba1a0babb7ae99a014cb989cdfc9a398dfeb7d4ca12f01d01700abbca45da68da53b7b95cd593a24337262a216d9cac5e354b2c99693ead9cbf36c5cb03

Download Submit
memory/2712-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2712-16-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2768-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2768-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2768-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download