88697c88dc3258915fe1fb68bc43cf6898be04531f0296e61b8e903fdf59c308

Analysis

max time kernel
146s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 17:57

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General

Target

2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe
Size

37KB
MD5

81f10baa537ae8426559c3f7ef36e3dc
SHA1

5e413bced5076568911c5ec4a192e95df9cbe41d
SHA256

88697c88dc3258915fe1fb68bc43cf6898be04531f0296e61b8e903fdf59c308
SHA512

42704f51c3316673c8951f27f3bb0c77f1d413607ad2fec2581e1a5ba346e903863228096d910a74586c3723c760549d36a106e3bf2731d65590b5f4ca5d6852
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx34:bxNrC7kYo1Fxf3s06gK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012238-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1112	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_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 2224 wrote to memory of 1112	2224	2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe	28
PID 2224 wrote to memory of 1112	2224	2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe	28
PID 2224 wrote to memory of 1112	2224	2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe	28
PID 2224 wrote to memory of 1112	2224	2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_81f10baa537ae8426559c3f7ef36e3dc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:1112

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\pissa.exe

Filesize
37KB

MD5
c3c3d3ee0b300178d41dffc94e76df60

SHA1
fe0a5507cfd276642934aeb11121706682644d36

SHA256
6e7c0b0836bcbedd08d0c98542020b7b3b1a530f4bbf693665fd9a639cce188a

SHA512
c90fadcf47d74bc18e4734e0b5970448c470ff12a49671d19f3dee59602adc45e27608bc8205399fad7f8d0f326af1fd7b3ccc756d9f92b349531f50fcc5f5e6

Download Submit
memory/1112-16-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1112-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2224-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2224-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download