djvu | 722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c

General

Target

722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe
Size

722KB
MD5

eaecc32da4fa6fa21e46e68ecf0b270a
SHA1

3f545827fae3ac14168f56ba96e267007f463cb0
SHA256

722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c
SHA512

7b9ebccb0335066bb4015d5e3fe6edf77cd9155d515c28a08de6df55bb906e93d7e3f51596a45d8fba1dc1abdd5d77f3c4840c8b49c89cc4681b126961ad0b78
SSDEEP

12288:rV/d+Y/82jPLkljZNp9LGV1bwOuPRS5hILzh1Zytnw+PUvOB:rL/VPw7NG+45hILrZypjPLB

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.qepi
offline_id
jgILOjDrBgyzY4JmT3B2jDSyBmDPBruKk8bKs6t1
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/665ddae3fc3cd10bbaaa4350408b196920240504141005/4cae7e 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: 0867PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 14 IoCs

resource	yara_rule
behavioral2/memory/3692-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3692-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3692-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4536-3-0x00000000043A0000-0x00000000044BB000-memory.dmp	family_djvu
behavioral2/memory/3692-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3692-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1092-37-0x0000000000400000-0x0000000000537000-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
3296	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-1-5-21-3062789476-783164490-2318012559-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\27294c38-f7ce-43b3-9c58-fee7750a4cd4\\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe\" --AutoStart"	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.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
8	api.2ip.ua
1	api.2ip.ua
2	api.2ip.ua

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4536 set thread context of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3692	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe
3692	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 4536 wrote to memory of 3692	4536	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	80
PID 3692 wrote to memory of 3296	3692	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	82
PID 3692 wrote to memory of 3296	3692	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	82
PID 3692 wrote to memory of 3296	3692	722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe	82

C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe
"C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe
  "C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3692
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\27294c38-f7ce-43b3-9c58-fee7750a4cd4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3296
- - C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe
    "C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    PID:2736
  - - C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe
      "C:\Users\Admin\AppData\Local\Temp\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:1092

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
098e3fff2705346ece787c21ac03d0f3

SHA1
8f6923a4871978ebb148a5f1cd34530887b0f0e7

SHA256
16ed7a2c43f928bcc7ec8f7e93082abda7106a63b87e747dcca57f1cee05ccc9

SHA512
2977d9e735e742cdef931554063ce606e3ea9ef4bbf5f405bda639cca10444d0882bc5f48067e5b0e847af7ba069a2fbd97f386937fd3b19b5444d208d962e7e

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
fcc1e5b28e21c678bf3b218ff70fed39

SHA1
71a5d714ef3c920394a01fa645b19c50d101bdc1

SHA256
c71aa8757450c91ba80f80ac3ae237a5bca174896682b18d00679247bc9e41d9

SHA512
b0bcaf728d119aadae526e739fa09b8678803c68ac9751617af07bfcd1713546e63076f30dac384bfe46dc2fca2cdce0feb80d0ce0ff2249b86659f385a6fe8f

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

Filesize
392B

MD5
fb0db1d458e4f0ceb943e502e7adda72

SHA1
cbea4df5dcc27faed518a1ed2903cecca58bdd42

SHA256
974075ed4e42993929da02f917c84799d6aa8ffe44119526ac1c987951b07b8c

SHA512
86dccb0611e5c398a9dae03b4fd6278d355769d9365c05b92ed743263b7e3d37213b1bd44286e7bba8537f1f7f173b126d60a17a745a785ffbf130c877f71a3e

Download Submit
C:\Users\Admin\AppData\Local\27294c38-f7ce-43b3-9c58-fee7750a4cd4\722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c.exe

Filesize
722KB

MD5
eaecc32da4fa6fa21e46e68ecf0b270a

SHA1
3f545827fae3ac14168f56ba96e267007f463cb0

SHA256
722ed368408dc8dcc8792b07ab204d96c5918c8520a6d556b6f0f22a06a6953c

SHA512
7b9ebccb0335066bb4015d5e3fe6edf77cd9155d515c28a08de6df55bb906e93d7e3f51596a45d8fba1dc1abdd5d77f3c4840c8b49c89cc4681b126961ad0b78

Download Submit
memory/1092-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1092-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3692-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3692-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3692-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3692-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3692-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4536-3-0x00000000043A0000-0x00000000044BB000-memory.dmp

Filesize
1.1MB

Download
memory/4536-1-0x0000000004300000-0x0000000004395000-memory.dmp

Filesize
596KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads