8dbdd1d4443ee13dfae9bfa2dc3e8bbccb3fe73def96eea8a99f086957d71396

Analysis

max time kernel
143s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 07:27

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General

Target

2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe
Size

46KB
MD5

407d73c1fa51057c9d3c135be661138b
SHA1

d98a78660fcc663c1ba3e6e1ccbf03f8c908a0f9
SHA256

8dbdd1d4443ee13dfae9bfa2dc3e8bbccb3fe73def96eea8a99f086957d71396
SHA512

ad060ee84719e665fa2ec3fa22f7b1e842a79e514438cc50bed86d208679b948ca652c94f52858669b289cb984866c0220848d594f4c89eec3acf7ecf0226e01
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blg:X6QFElP6n+gJQMOtEvwDpjB0GIWSlg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000230f2-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000230f2-12.dat	CryptoLocker_set1

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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
336	asih.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 5012 wrote to memory of 336	5012	2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe	83
PID 5012 wrote to memory of 336	5012	2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe	83
PID 5012 wrote to memory of 336	5012	2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_407d73c1fa51057c9d3c135be661138b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:336

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\asih.exe

Filesize
46KB

MD5
4f07dbdc45bd2a419bcc3e07a41ab561

SHA1
bb288c29e5a5415eaeb05e9b0557e5f6d6057d0a

SHA256
925507d9fe43e57cf69facec8e6443b89dacf156fb8882aca4d16a22b444b977

SHA512
c00d444262c107dfeb5f59ae4c15406636027e21f43717917530ea72ffb90b9c709d8f4ed9cd32d46095fca39af4bfc12334575de7f134ad0cbaf316af14b027

Download Submit
memory/336-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/336-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5012-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/5012-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/5012-2-0x0000000000640000-0x0000000000646000-memory.dmp

Filesize
24KB

Download