djvu | 2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31

General

Target

2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
Size

757KB
MD5

5093f66a39d5e25aa3eec6a1181a03b8
SHA1

b5eff256d3f1639515ea8e6bbd568eedba571690
SHA256

2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31
SHA512

9816a0508b39e3139f010fbdff042ca28693f919c39545106886972a31a82068affb0602bd52797412575fed5320047d98632eeaab519c23c1f8d17ac14345a5
SSDEEP

12288:c9vu0WQF0BKwIMKdTxaQBubeBI+y/Fvdxhx89HRy6YUKo3Ry0Ev1s3yROe949f1y:6zF6lIMe9Buq6x53ERstdXvsyYe949fw

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.bgjs
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://sajdfue.com/files/1/build3.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. 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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0863PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral2/memory/2180-2-0x00000000039E0000-0x0000000003AFB000-memory.dmp	family_djvu
behavioral2/memory/2004-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2004-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2004-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2004-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2004-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2044-39-0x0000000000400000-0x0000000000537000-memory.dmp	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
5000	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-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7d7a5e46-2d29-43c7-bb9f-0529b527341c\\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe\" --AutoStart"	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.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
2	api.2ip.ua
8	api.2ip.ua
1	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2180 set thread context of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2644 set thread context of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85

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
2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
2044	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
2044	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2180 wrote to memory of 2004	2180	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	79
PID 2004 wrote to memory of 5000	2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	81
PID 2004 wrote to memory of 5000	2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	81
PID 2004 wrote to memory of 5000	2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	81
PID 2004 wrote to memory of 2644	2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	82
PID 2004 wrote to memory of 2644	2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	82
PID 2004 wrote to memory of 2644	2004	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	82
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85
PID 2644 wrote to memory of 2044	2644	2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe	85

C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
"C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
  "C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\7d7a5e46-2d29-43c7-bb9f-0529b527341c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:5000
- - C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
    "C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe
      "C:\Users\Admin\AppData\Local\Temp\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2044

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

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
1KB

MD5
9bf3a1941056959a5eba7360314bdcbc

SHA1
99344d4525cc7a159ab9cfd079b6dd0345df6851

SHA256
a5553e0213c248272671a9e9bd11ccff7656d1eb324f57ca50d1c2d97d166fa7

SHA512
6e210003c3b60dc929c7d825d4bae7eff3d4ace398cb8eea6e26fcfe11fa57c2d5c9fd224bff751e91a12860f96a0fc450ec07a820b8eb01b46ec855cf71a08c

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
410B

MD5
fe98fcf2f06c5893e283352e928c4171

SHA1
a317029650d42420374c8bbf42e9fbb03d6e7bde

SHA256
f44c269e05afae6979b78c406199270b703533060c1148a7c558b79d8a54db4c

SHA512
007443c9777c322e0e9522fd4356a15c3fe73b1101cbb6e83c0a6c9973fc0e40d06eeeada3a56e72275653ee1dd7ec0084a66b50756dcf9e342b7610659dc9e0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
97bd5a9545e010c360b95a3e6555b884

SHA1
7b4722cda5ef710df1762234bb6af050549aacb1

SHA256
16d0dfa7268ba263a937b7e0f9146f42fb80d30990d9771be1012f52df39961f

SHA512
92855e0b466cc4407398307cfa3fb0301869aea55a52a5def8ed4bf01d99b4ee92e65998ae06e3a96def0b09b0e6a4f4e80a9c748ecf98e11c531a779db94c08

Download Submit
C:\Users\Admin\AppData\Local\7d7a5e46-2d29-43c7-bb9f-0529b527341c\2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31.exe

Filesize
757KB

MD5
5093f66a39d5e25aa3eec6a1181a03b8

SHA1
b5eff256d3f1639515ea8e6bbd568eedba571690

SHA256
2545f1ee454e96b5c1d06c7a675488615ff98cd1baca629963172b466e57fd31

SHA512
9816a0508b39e3139f010fbdff042ca28693f919c39545106886972a31a82068affb0602bd52797412575fed5320047d98632eeaab519c23c1f8d17ac14345a5

Download Submit
memory/2004-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2004-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2004-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2004-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2004-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2044-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2180-2-0x00000000039E0000-0x0000000003AFB000-memory.dmp

Filesize
1.1MB

Download
memory/2180-1-0x0000000003940000-0x00000000039D5000-memory.dmp

Filesize
596KB

Download
memory/2644-20-0x00000000036C0000-0x0000000003762000-memory.dmp

Filesize
648KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads