djvu | d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07

General

Target

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
Size

1.1MB
MD5

37118cef94032f930d9ed40fa37144fe
SHA1

892d01b286a17e9faedec5fbda3d268842306393
SHA256

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07
SHA512

c01e408709945cf912836d04a0e754d8cc7d1641e13cfa33809328498e031387e45b633fec885384a227002762d7f332bf82b58a8b0ff44a5c3433988991e9a1
SSDEEP

24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8RWQHUq7:F0dwAYZt6C31WeTVRPOhR7Uq7

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://asvb.top/nddddhsspen6/get.php

Attributes

extension
.paas
offline_id
LQbDo3EfIVHxGuJOWRJdmxgY66rD6kiyqz4tzyt1
payload_url
http://asvb.top/files/penelop/updatewin1.exe

http://asvb.top/files/penelop/updatewin2.exe

http://asvb.top/files/penelop/updatewin.exe

http://asvb.top/files/penelop/3.exe

http://asvb.top/files/penelop/4.exe

http://asvb.top/files/penelop/5.exe
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. You can get and look video overview decrypt tool: https://we.tl/t-B0FsLNO3fN Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0300ewgfDd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\0577502a-a188-46d3-bb8c-0f6483fbacd9\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	family_djvu

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

Processes:

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3100 icacls.exe

pid	process
3100	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0577502a-a188-46d3-bb8c-0f6483fbacd9\\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe\" --AutoStart"	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.2ip.ua
5 api.2ip.ua
28 api.2ip.ua
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	ioc
4	api.2ip.ua
5	api.2ip.ua
28	api.2ip.ua

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exeicacls.exed83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exed83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

pid	process
1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
5112	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
5112	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

description	pid	process	target process
PID 1904 wrote to memory of 3100	1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 1904 wrote to memory of 3100	1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 1904 wrote to memory of 3100	1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 1904 wrote to memory of 5112	1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
PID 1904 wrote to memory of 5112	1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
PID 1904 wrote to memory of 5112	1904	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

C:\Users\Admin\AppData\Local\Temp\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
"C:\Users\Admin\AppData\Local\Temp\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\0577502a-a188-46d3-bb8c-0f6483fbacd9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:3100
- C:\Users\Admin\AppData\Local\Temp\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
  "C:\Users\Admin\AppData\Local\Temp\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
67e486b2f148a3fca863728242b6273e

SHA1
452a84c183d7ea5b7c015b597e94af8eef66d44a

SHA256
facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

SHA512
d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
9da112d9caf98199e79db02a27778777

SHA1
2ed02a064bd4474b3a9655e5a5f6ca6c8b872d8d

SHA256
554bd9e008abb60233fe6cb246d4afd38c0d30a9f8cf92a911b31e326cfea489

SHA512
f5bfc6fa9be61fb18d95506d877db78843cc7f57270c97063d7080a88170abebbe57cb1bd1ac5e9a37c3faff5c139edcd5b67c4f8745b2e32a6023bb8f5876c2

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
93900ae98c6b690158ee60ed3256e846

SHA1
5f18ef00e1e6858c96bbab72627e2f735dcd29e6

SHA256
9b35042153040c1864a025a401cfd6d7e8aca463b4053c59d1787a64561e2f5f

SHA512
900cbc8d5175037a9833cfc79b7399813d9e13747818cb1b85bc7501719aadc6045de9f1e33b7633cc885a8fdb2d46ce3cde2dec6ebaadfd5683fe2b15fc2cde

Download Submit
C:\Users\Admin\AppData\Local\0577502a-a188-46d3-bb8c-0f6483fbacd9\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

Filesize
1.1MB

MD5
37118cef94032f930d9ed40fa37144fe

SHA1
892d01b286a17e9faedec5fbda3d268842306393

SHA256
d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07

SHA512
c01e408709945cf912836d04a0e754d8cc7d1641e13cfa33809328498e031387e45b633fec885384a227002762d7f332bf82b58a8b0ff44a5c3433988991e9a1

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads