cbab7aee9a53f4b69cbe3ec2e2aa9fdc39faea7e13850a783f934df53cc9489f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 19:48

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General

Target

2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe
Size

82KB
MD5

f31c59745594187e46db9c6d7e004bdf
SHA1

803cb75d8778b4076d8bf520c71e877f0a195e1a
SHA256

cbab7aee9a53f4b69cbe3ec2e2aa9fdc39faea7e13850a783f934df53cc9489f
SHA512

d375ea7358f0750ab1bfe5885cc80c1de9c46be6b62d4d9117ccdc5c5465bfd07854c766b9ed4583f072003096c4ba09181910f2dbc91228a5274da61a79d0e1
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrht:TCjsIOtEvwDpj5HE/OUHnSMB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000014abe-11.dat	CryptoLocker_rule2
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2172-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2172-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2196-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000014abe-11.dat	CryptoLocker_set1
behavioral1/memory/2196-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2172-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2172-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2172	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-04-21_f31c59745594187e46db9c6d7e004bdf_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 2196 wrote to memory of 2172	2196	2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe	28
PID 2196 wrote to memory of 2172	2196	2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe	28
PID 2196 wrote to memory of 2172	2196	2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe	28
PID 2196 wrote to memory of 2172	2196	2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_f31c59745594187e46db9c6d7e004bdf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2172

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
82KB

MD5
934f05bbfee06f60f551ad40f49922ba

SHA1
70948a69cc965aacaab1fd1d2e51e83b4b0a973e

SHA256
6574c86f3508c68bdeab9fbf121504b8e67f44f89a1f8a9b2632a71ce2c819c0

SHA512
af5c16860d1519474f567a3c594ff808c90b19963f7b11bd199017b2e7dd8998589f17ce3cca19f93fd718e6dcec00d7880552bd53049a99f0f001be68c19ced

Download Submit
memory/2172-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2172-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2172-20-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2172-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2196-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2196-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2196-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2196-4-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download