c5fe884397fd9ad620bde976b57946ab6483516de309b62712f43514bbdb65d6

Analysis

max time kernel
151s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 14:00

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General

Target

2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe
Size

41KB
MD5

e57be985168e259b821b9b6e729da62b
SHA1

193d47c27c0c0a8d9d5fb6f0f52d1a8755056444
SHA256

c5fe884397fd9ad620bde976b57946ab6483516de309b62712f43514bbdb65d6
SHA512

6ee0a78e9282299d9c5dc4afde36da35986b8ef08908545cc71b8454fae0317710073722ec461988f2e2478788bd2523b976b1d6e8de53ce7e3989cdb2aa56c6
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syk:bgGYcA/53GADw8Cl/k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023232-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3176	hasfj.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 3176	4968	2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe	83
PID 4968 wrote to memory of 3176	4968	2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe	83
PID 4968 wrote to memory of 3176	4968	2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_e57be985168e259b821b9b6e729da62b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
42KB

MD5
fde9592e555f77218fd9475031833bdb

SHA1
801177c1ce4f6b365ee520dec5c3192c0fd42160

SHA256
96b01d41e0da313e56a8768b12dd3c920a72f602e06e916f59efea74e845170c

SHA512
105ee8b4d4b63b61d420363cf323a24a362b5d7d7a2b642136eb0669a2458fa2c12f28ba18eadc1a29d381ae174b24916f466a3e7148ea2074eeb76db01c63ca

Download Submit
memory/3176-17-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/3176-18-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4968-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4968-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4968-2-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download