djvu | 1ca8ad78274a829697b8381e96b914fea1a65b5b2351f536325d2143d689426e

General

Target
3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
Size 1.1MB
Sample240115-3pcyyahabl
SHA256 1ca8ad78274a829697b8381e96b914fea1a65b5b2351f536325d2143d689426e
MD5 de93e8a0692db2c2f178270b8da7b5d7
SHA1 21df7a70852c9d47b3423d14005bf67a69e6fdcc
SHA512 55b21170027f3e3dc2ca8f1d6678b054f270ca7d5e9ac71eec7a4e630ed007a0de07bcb8134431fb4a0d4c99fabf235911cc0322080920bb407748e4422b0d4a
SSDEEP 24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8UWQHUq7:F0dwAYZt6C31WeTVRPOhU7Uq7
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes

extension
.ppvw
offline_id
phJtdHo970vyx7vwlYG00OakDR75RuJz7NXDArt1
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. You can get and look video overview decrypt tool: https://we.tl/t-eyUsqpKbFl 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: 0816JOsie

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000167e6-18.dat	family_djvu

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

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2788	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-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2a17925e-7403-4b8d-b192-501149902bb8\\3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe\" --AutoStart"	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.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.

flow	ioc
3	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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
2768	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
2768	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 2788	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	28
PID 2840 wrote to memory of 2788	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	28
PID 2840 wrote to memory of 2788	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	28
PID 2840 wrote to memory of 2788	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	28
PID 2840 wrote to memory of 2768	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	30
PID 2840 wrote to memory of 2768	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	30
PID 2840 wrote to memory of 2768	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	30
PID 2840 wrote to memory of 2768	2840	3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe	30

C:\Users\Admin\AppData\Local\Temp\3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
"C:\Users\Admin\AppData\Local\Temp\3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\2a17925e-7403-4b8d-b192-501149902bb8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
  "C:\Users\Admin\AppData\Local\Temp\3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2768

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 1KB
SHA256 a2b62727608d9216237a6608a2e995c28d3656b72c06ee0b651878f26df7e8ff
MD5 10bc1463c2326403e6e2a83112554add
SHA1 554df3e5bd0842d1d5be8331bf765b6f6ccd0afe
SHA512 6ba098756dec7fd32d25c208ced685781b78e125d0302af91ef2478793169f7a9d5a34219f5bdd83fcc16c64dbd2bf70e190ad482ddb9d878be32b10110f0d5c
MD5 SHA1 SHA512

Submit Download

CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 724B
SHA256 58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5
MD5 8202a1cd02e7d69597995cabbe881a12
SHA1 8858d9d934b7aa9330ee73de6c476acf19929ff6
SHA512 97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9
MD5 SHA1 SHA512

Submit Download

24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Size 410B
SHA256 62b26a99f9b079bcea6fa242c1f656df75d696613e0b2ba1cb32a272e39cf860
MD5 343f342b76c6abe3c75b8c287de27248
SHA1 af4f837c96a802a326995ce91a634c4d0cd52be4
SHA512 2b038d56107403cc6dc671254f09f08463d204f72e129a6a18a017f7507b733ce55550e533eb472db2fcce2cfed7ffd41fb0860c829e6d38714312d6bafa7481
MD5 SHA1 SHA512

Submit Download

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Size 344B
SHA256 21413184fdb4eb73f5a4bd51a063ce06e65d5c1be16d666c8a515d9b9d9bfaed
MD5 2e23bc04e616dcc935833307d14fb520
SHA1 b2fb56782868e49f8b60cdcf5e72e759d0e62040
SHA512 b10301c466580243a2c9b7ec2ba81fa3025d04fc245e40b97f24eb85f94ad8d6c29ad504d20d150d815bcd8ff3b8eeb4958bfe37156b0ca313db79ee7734e404
MD5 SHA1 SHA512

Submit Download

CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Size 392B
SHA256 5df6e142703819a7e9f78c1fd1cff455488002778de83b7ac66b144d43d45d4d
MD5 396090a9a1e3ca374cb4b53971a610e0
SHA1 6ccf74032f4e5f012b5a42d0b98c777a8807f83e
SHA512 4409ba05ab58ffc619a41a6fcdadbda9b1fc5b400fde65a72de95722ac076a761bac286e12f449e1a3f1f47c01601e1530e5c15a0a76ec04ee13b4701e7d8dd2
MD5 SHA1 SHA512

Submit Download

3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe

Path C:\Users\Admin\AppData\Local\2a17925e-7403-4b8d-b192-501149902bb8\3485f3cbe491a8770a5f05f4cfcd7742a6182fc61a450d2f8d364ca4c0af1c2e_payload.exe
Size 1.1MB
SHA256 1ca8ad78274a829697b8381e96b914fea1a65b5b2351f536325d2143d689426e
MD5 de93e8a0692db2c2f178270b8da7b5d7
SHA1 21df7a70852c9d47b3423d14005bf67a69e6fdcc
SHA512 55b21170027f3e3dc2ca8f1d6678b054f270ca7d5e9ac71eec7a4e630ed007a0de07bcb8134431fb4a0d4c99fabf235911cc0322080920bb407748e4422b0d4a
SSDEEP 24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8UWQHUq7:F0dwAYZt6C31WeTVRPOhU7Uq7
MD5 SHA1 SHA512 SSDEEP

Submit Download

Cab5715.tmp

Path C:\Users\Admin\AppData\Local\Temp\Cab5715.tmp
Size 65KB
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
SSDEEP 1536:drFvD2YSE/sFDqV0FJJynkAhftCvMd3coa282frgW1qgNzU:drVDJSeaDqV0FJwLhVkr282fF5U
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads