bf9dfec755ef003ea3cb931937f7034f5f5cbe07c97da537eb88d7e28bd65b2e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 18:03

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General

Target

2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe
Size

122KB
MD5

fb4a23de4dd80b07cbfaf696ed01ea76
SHA1

06736bc18a3e8dded443aa843227c228f5c4986f
SHA256

bf9dfec755ef003ea3cb931937f7034f5f5cbe07c97da537eb88d7e28bd65b2e
SHA512

44608b3385e0029e8dde2925c2c9b329c451142e0bc6e46ac174958d8844f3a46aa0684c5a52cb38fc0fa50eea65caaefdfee3f468fac4c9b1ba83b6d50cf22e
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMg/:u6a++OtEvwDpj6zb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2860	2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_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 2860 wrote to memory of 3012	2860	2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe	28
PID 2860 wrote to memory of 3012	2860	2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe	28
PID 2860 wrote to memory of 3012	2860	2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe	28
PID 2860 wrote to memory of 3012	2860	2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_fb4a23de4dd80b07cbfaf696ed01ea76_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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\asih.exe

Filesize
123KB

MD5
b7b21b1a975915508b104b59881b4e2f

SHA1
e2c5672c4828e15adffea8071a19f8b987199876

SHA256
23613d38a4fb97b413fe4af7d40b9bd94a1bb13deb30c9f24478e9852b9c295a

SHA512
da97c96df9387b07e90ec446ba748531d9e6b17fdc92ae25d7ec56fc2a8a42c8a1a9b77c98ad97e5b9218a11a474e9ab2b05c40536c6d424a1cbbc829337bf7c

Download Submit
memory/2860-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2860-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2860-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download