djvu | ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb

General

Target

ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
Size

710KB
MD5

a216e53189aac7badb3801bfb806c058
SHA1

97b338912cb414c2ed6247288cffb46a6f4e63dc
SHA256

ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb
SHA512

5975d23ca8d6469e8877dba219beedf0f1c92a23d65f151b0e835e61f40e05285f91d8ddf48d71699470d161035d9f45791d5e2364f7c71b2683d04a6fea7d34
SSDEEP

12288:bbty7ATsgtulTnRU0htKcFMWxaVufaVFiDNqZMXuEOwgd:bbtyn/1nmG3xGIU5Ers

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vehu
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://cajgtus.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/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 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: 0872PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral2/memory/2180-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2180-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1360-3-0x0000000004AF0000-0x0000000004C0B000-memory.dmp	family_djvu
behavioral2/memory/2180-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2180-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2180-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4376-37-0x0000000000400000-0x0000000000537000-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
952	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-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\20049a90-f2c5-4a21-a1a8-62d5fbe5ceaf\\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe\" --AutoStart"	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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
1	api.2ip.ua
2	api.2ip.ua
8	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1360 set thread context of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 5088 set thread context of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86

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
2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
4376	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
4376	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 1360 wrote to memory of 2180	1360	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	81
PID 2180 wrote to memory of 952	2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	82
PID 2180 wrote to memory of 952	2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	82
PID 2180 wrote to memory of 952	2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	82
PID 2180 wrote to memory of 5088	2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	83
PID 2180 wrote to memory of 5088	2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	83
PID 2180 wrote to memory of 5088	2180	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	83
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86
PID 5088 wrote to memory of 4376	5088	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	86

C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
  "C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\20049a90-f2c5-4a21-a1a8-62d5fbe5ceaf" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:952
- - C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
    "C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:5088
  - - C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
      "C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4376

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
6728aea2631b86a76c237508d8ba9b55

SHA1
7a670f95cac088313f7558869162fe01c6dc0ec9

SHA256
e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b

SHA512
533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5

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
6ada575427d53667a6a98611b71e6d37

SHA1
4722f0c8b889b65329b1ebac2c521d907e71f265

SHA256
35d3e06e664920f607224f6ee41978d32e774d28eb43aabfeeda51c0441ca43a

SHA512
6194086e7c546bdac719d59caa677e4d69ba21cc4d74a86ae1d30e69e53287f1eea1f8c794aa2d348b047272e746af19773d815c391b5e8037fe2c89124bc1ba

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

Filesize
392B

MD5
5729be57310bee2de561911aa039df33

SHA1
bf93438bf844db1cfe96ff31b3ac084c1d008257

SHA256
2ffae660b9f5f9aeb680180574bae9246e5c875e222439dc4df6313956258d81

SHA512
c9f0c45a9ef51d7f16a106a2ac771a0aa3ee053f92c865056fc4ae552e438c8cb489fab5e2ffa968c4d3bf4a6ebaa26920c346ee5770571fbce898e4e4f87e9e

Download Submit
C:\Users\Admin\AppData\Local\20049a90-f2c5-4a21-a1a8-62d5fbe5ceaf\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe

Filesize
710KB

MD5
a216e53189aac7badb3801bfb806c058

SHA1
97b338912cb414c2ed6247288cffb46a6f4e63dc

SHA256
ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb

SHA512
5975d23ca8d6469e8877dba219beedf0f1c92a23d65f151b0e835e61f40e05285f91d8ddf48d71699470d161035d9f45791d5e2364f7c71b2683d04a6fea7d34

Download Submit
memory/1360-3-0x0000000004AF0000-0x0000000004C0B000-memory.dmp

Filesize
1.1MB

Download
memory/1360-1-0x0000000004A40000-0x0000000004AD5000-memory.dmp

Filesize
596KB

Download
memory/2180-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2180-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2180-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2180-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2180-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads