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\b054a80e-c2ba-4eb5-a3d5-078a2ffe7cbe\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2828 icacls.exe

pid	process
2828	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\b054a80e-c2ba-4eb5-a3d5-078a2ffe7cbe\\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
9 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
9	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
2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
2964	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
2964	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

description	pid	process	target process
PID 2636 wrote to memory of 2828	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 2636 wrote to memory of 2828	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 2636 wrote to memory of 2828	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 2636 wrote to memory of 2828	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	icacls.exe
PID 2636 wrote to memory of 2964	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
PID 2636 wrote to memory of 2964	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
PID 2636 wrote to memory of 2964	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
PID 2636 wrote to memory of 2964	2636	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe	d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe

C:\Users\Admin\AppData\Local\Temp\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe
"C:\Users\Admin\AppData\Local\Temp\d83013d86062dab8e194ad14da91a214d2e539d1a9fff3e29c9e2e02f4bf9d07.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\b054a80e-c2ba-4eb5-a3d5-078a2ffe7cbe" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:2828
- 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:2964

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

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
3a56df6b078023aa249b424ca92e244e

SHA1
21a4dcf365cce28b65a91f109e114ab8c44ac7d4

SHA256
549fee51c212fb1c6851992395ae741fd3e1ee2204a2ecfd65b31a2b91a37e26

SHA512
965d374b8b89c84a70a5255e9da06a7016367be22fde403d6e4f6e75b27f77a3eb8a81dc3a987c7892d3304e335ec3f8684e1a1aa96d2e8df7217ba3800c0ea8

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

Filesize
170B

MD5
c8bc8ccbb6e6dffde3e4e1a14d34e973

SHA1
c14801713397a6abeb81e01fc36d8e79041cf5bd

SHA256
beaf927873d20e00c77ef6d2b1033a353bec9c867c11fd5183e59ec5e085c9c7

SHA512
727d75a6c9e24c08f4ed7e38361502071900f761c6f2f0d3eec2b187aff1e845071b04df719ac62a9b3762309b35d6f7d8f509a3623f4819b136174db74e3433

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabC458.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\b054a80e-c2ba-4eb5-a3d5-078a2ffe7cbe\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

Replay Monitor

Loading Replay Monitor...

Downloads