djvu | 567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f

Analysis

max time kernel
149s
max time network
67s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
15/06/2024, 16:55 UTC

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General

Target

file.exe
Size

824KB
MD5

9b3e38e023020228484dcc008d6f6e52
SHA1

16a218483c71a8edeb7c43a9ff3696e53c586ef2
SHA256

567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f
SHA512

0f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399
SSDEEP

24576:ATJYdNu+4/LN1WKVQ7A6WNETiczoc9myk:AGV4/LK+pPwRNmy

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://cajgtus.com/test1/get.php

Attributes

extension
.watz
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
payload_url
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/abe121434ad837dd5bdd03878a14485820240531135509/34284d Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: support@freshingmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0874PsawqS

rsa_pubkey.plain

1
-----BEGIN PUBLIC KEY-----
2
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsZOJbLC8rdQ3RNFdWJ9l
3
sRHwDxjXZCN4K9IEo3ccj2X7KVzvLXJ/I+jMWoFDgbTA5TMMDPMhlSykGYr1rbX9
4
tDxs5EL7FC3R6jbLzQ+QVdvG2Slvd1aEiSAhkrB6Z97DC28ixTGkA4aCQKKFT5ge
5
SXPpDStS2N3zeiWPCMkOs9RErtxVW9sXoWRAFtBg2kSHTyKEWcRqnxplrJGdVQKU
6
0DxDnHDefnxaf/3VSRczBwGZlq/Mr2bfHM2Mf8JWmYztlmGbjGb//oixuuRePxzt
7
6xgozgVrC64HnagNFyODdlk2w/BpJWXIbgivZ0kR40Ll3NEAl3Z26cIkIc6pAJ3s
8
fwIDAQAB
9
-----END PUBLIC KEY-----

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/4668-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1328-4-0x00000000021D0000-0x00000000022EB000-memory.dmp	family_djvu
behavioral2/memory/4668-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4668-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4668-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4668-12-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/772-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	file.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1464	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\a14f95a0-23ac-4e1a-b0c0-0611ca0517f6\\file.exe\" --AutoStart"	file.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	api.2ip.ua
7	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1328 set thread context of 4668	1328	file.exe	85
PID 4572 set thread context of 772	4572	file.exe	89

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4668	file.exe
4668	file.exe
772	file.exe
772	file.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 1328 wrote to memory of 4668	1328	file.exe	85
PID 4668 wrote to memory of 1464	4668	file.exe	86
PID 4668 wrote to memory of 1464	4668	file.exe	86
PID 4668 wrote to memory of 1464	4668	file.exe	86
PID 4668 wrote to memory of 4572	4668	file.exe	87
PID 4668 wrote to memory of 4572	4668	file.exe	87
PID 4668 wrote to memory of 4572	4668	file.exe	87
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89
PID 4572 wrote to memory of 772	4572	file.exe	89

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4668
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\a14f95a0-23ac-4e1a-b0c0-0611ca0517f6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1464
- - C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4572
  - - C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:772

Network

DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR
DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR
DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR
DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR
DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

api.2ip.ua

file.exe

Remote address:

8.8.8.8:53

Request

api.2ip.ua

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A
DNS

cajgtus.com

file.exe

Remote address:

8.8.8.8:53

Request

cajgtus.com

IN A

No results found

8.8.8.8:53

8.8.8.8.in-addr.arpa

dns

330 B
5

DNS Request

8.8.8.8.in-addr.arpa

DNS Request

8.8.8.8.in-addr.arpa

DNS Request

8.8.8.8.in-addr.arpa

DNS Request

8.8.8.8.in-addr.arpa

DNS Request

8.8.8.8.in-addr.arpa
8.8.8.8:53

api.2ip.ua

dns

file.exe

280 B
5

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua
8.8.8.8:53

api.2ip.ua

dns

file.exe

280 B
5

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua

DNS Request

api.2ip.ua
8.8.8.8:53

cajgtus.com

dns

file.exe

285 B
5

DNS Request

cajgtus.com

DNS Request

cajgtus.com

DNS Request

cajgtus.com

DNS Request

cajgtus.com

DNS Request

cajgtus.com
8.8.8.8:53

cajgtus.com

dns

file.exe

285 B
5

DNS Request

cajgtus.com

DNS Request

cajgtus.com

DNS Request

cajgtus.com

DNS Request

cajgtus.com

DNS Request

cajgtus.com

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\a14f95a0-23ac-4e1a-b0c0-0611ca0517f6\file.exe

Filesize
824KB

MD5
9b3e38e023020228484dcc008d6f6e52

SHA1
16a218483c71a8edeb7c43a9ff3696e53c586ef2

SHA256
567ed29376b1cdfc820544d6d8e38d58187476a0b911226d5cb8e95f69dcba6f

SHA512
0f46c3509890560a4c753efb5d6b940b545a2619b277c536fae8cb2dab280def9afd61b7d7d7e0ab08a879dcf2288705e92a3066b37da1a1c2b0e0ca64e98399

Download Submit
memory/772-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/772-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1328-4-0x00000000021D0000-0x00000000022EB000-memory.dmp

Filesize
1.1MB

Download
memory/1328-1-0x00000000004E0000-0x0000000000573000-memory.dmp

Filesize
588KB

Download
memory/4572-18-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/4572-14-0x0000000000400000-0x00000000004DE000-memory.dmp

Filesize
888KB

Download
memory/4668-12-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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