0f8261eb7d9e8f4f3899bfb3d1fb6cb390a8ef488d6bb4c8ea794f918656886d

Analysis

max time kernel
138s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 03:55

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General

Target

2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe
Size

36KB
MD5

b7a1a3c34f80e98e954345a64c522455
SHA1

88694c561ae56cae2c60d396fe5526541cb5c6d6
SHA256

0f8261eb7d9e8f4f3899bfb3d1fb6cb390a8ef488d6bb4c8ea794f918656886d
SHA512

b546d40e407b0b824c7e0dcb2d9926f0207cccc8df4a700a30f148eec3b71a07b17c001624ed575afbc6cd79cfa9e37dcf11c863c02518a153e5c92c00d84949
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYf:vj+jsMQMOtEvwDpj5HcSYf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00040000000130fc-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00040000000130fc-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
848	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1300	2024-03-06_b7a1a3c34f80e98e954345a64c522455_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 1300 wrote to memory of 848	1300	2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe	27
PID 1300 wrote to memory of 848	1300	2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe	27
PID 1300 wrote to memory of 848	1300	2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe	27
PID 1300 wrote to memory of 848	1300	2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_b7a1a3c34f80e98e954345a64c522455_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1300
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:848

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
36KB

MD5
107c8f9c08a9a9672f28dfc7c30e8429

SHA1
94a612f70d7dd67157c9b191a73610532e8b7c24

SHA256
1c811a907b676fbede086e1b343a7c063ebe76a187a365b9ebe647bb4df40f64

SHA512
95d85b192228e5e548750fe88535ce214c6769b0a6d2929a9f3959e188e7aa32142f83408eafe9c5354050eb6c0831478a00cc8b1ac09089933671ef8bf2c150

Download Submit
memory/848-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/848-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1300-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1300-2-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/1300-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download