djvu | f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead

General

Target

f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
Size

750KB
MD5

8f4a0084bd7a79864f287e798f30874c
SHA1

eabb2cc0af9c347cd9fb2dfdea701524f70d48ff
SHA256

f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead
SHA512

78e21c4ff15f1f8e26df5eb34ce0c8d7be1d1c43e90db22ab29cdf2e03a99bd4c281911d71e9927403f923f40cb2cd4971f4bd43e31cbc5764cdf92371b29eb2
SSDEEP

12288:Ghs2p3ADk+aVwsrx9MgcAK9WJNtMXqDLcYPxpG9qxuLe99r:Gm2pyk+O9zQONtMXqD4UpGDLe7

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.bgjs
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
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/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: support@freshingmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0863PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4184-2-0x0000000004AF0000-0x0000000004C0B000-memory.dmp	family_djvu
behavioral2/memory/2004-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2004-4-0x0000000000400000-0x0000000000537000-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/2004-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2456-37-0x0000000000400000-0x0000000000537000-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

Processes:

icacls.exe

pid process

1516 icacls.exe

pid	process
1516	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3777591257-2471171023-3629228286-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9e0f8eb9-71cf-4865-81c1-033c6c57a886\\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe\" --AutoStart"	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.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

16 api.2ip.ua
25 api.2ip.ua
15 api.2ip.ua

flow	ioc
16	api.2ip.ua
25	api.2ip.ua
15	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exef8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

description	pid	process	target process
PID 4184 set thread context of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 set thread context of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exef8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

pid	process
2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
2456	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
2456	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exef8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exef8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
"C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4184

C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
"C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.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\9e0f8eb9-71cf-4865-81c1-033c6c57a886" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1516

C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
"C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2896

C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
"C:\Users\Admin\AppData\Local\Temp\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2456

Network

MITRE ATT&CK Matrix ATT&CK v13

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

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
26f403621df973e369b7b13c6aba9ccb

SHA1
ca3e85e908d9532f384c0560797f4e379bd4a0a0

SHA256
0e9d6e111822d17e4c57df845d4fdacc5477adec069db8eecd3be0d11fc84533

SHA512
d5bfab31e8c913cd97b83d92c56e58a3c225975537006b42124cb1cf4e813c635c30d6aa5010ecec54c1e8fa9eeb44c93f2b955216e7509dd79f1e074e340225

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
1b764b2ce7475aa21586bfa000c43c83

SHA1
115ab59858d31208fe2463fc495fd0da5003df8c

SHA256
8c6f6b16f717beae163f5f21515c71c8db5edb4856193c88654367665e14b406

SHA512
323de45fac077779b707905831ddd7a58f953f8204ec743f5dc8751e8cac04fdb9822df98a4d6a2405ecb9fd851dd74b2f79fb3b82b048dfafff96e9dbefffd0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
0d57591ef4d80baa15ff63ab3adc7879

SHA1
b642a516904c138552c349d74dced5d8bd2f9804

SHA256
b210df25109f9ffdd28107a27de0bcb09f16b2134058e6736533dbea82513cf0

SHA512
ca7600191b99930e08230e4fff9e122402a4d29d15e3a659455f168f1a2e23c0040f54934a45936691041f8b049229fed2b65ebec5beed4e60d1dfc630f5a811

Download Submit
C:\Users\Admin\AppData\Local\9e0f8eb9-71cf-4865-81c1-033c6c57a886\f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
Filesize
750KB

MD5
8f4a0084bd7a79864f287e798f30874c

SHA1
eabb2cc0af9c347cd9fb2dfdea701524f70d48ff

SHA256
f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead

SHA512
78e21c4ff15f1f8e26df5eb34ce0c8d7be1d1c43e90db22ab29cdf2e03a99bd4c281911d71e9927403f923f40cb2cd4971f4bd43e31cbc5764cdf92371b29eb2

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

Filesize
1.2MB

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

Filesize
1.2MB

Download
memory/2004-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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

Filesize
1.2MB

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

Filesize
1.2MB

Download
memory/2456-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2456-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2896-18-0x0000000003110000-0x00000000031AE000-memory.dmp

Filesize
632KB

Download
memory/4184-2-0x0000000004AF0000-0x0000000004C0B000-memory.dmp

Filesize
1.1MB

Download
memory/4184-1-0x00000000031B0000-0x0000000003247000-memory.dmp

Filesize
604KB

Download

description	pid	process	target process
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 4184 wrote to memory of 2004	4184	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2004 wrote to memory of 1516	2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	icacls.exe
PID 2004 wrote to memory of 1516	2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	icacls.exe
PID 2004 wrote to memory of 1516	2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	icacls.exe
PID 2004 wrote to memory of 2896	2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2004 wrote to memory of 2896	2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2004 wrote to memory of 2896	2004	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe
PID 2896 wrote to memory of 2456	2896	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe	f8265f7417850c75f029ce20561b05776bba3e3354a1cb550d3b3b236c5f3ead.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads