djvu | 0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab

General

Target

0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
Size

771KB
MD5

68efa1ec3f227277cdb2949de32ed7b6
SHA1

ae14baa9795f3e2d3489d6633d1931cc8f342d89
SHA256

0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab
SHA512

9fed06969435d48457b28113c4ca6bf1fffa700781e64388fa773ff2cd31b37bb24310b48e6e38e33f140ab2cb2d0e74dfbf74e881d89db03701de085bc31a77
SSDEEP

12288:edad8K8oq8wVpXVSE+pnYu4B1QvVundRBf1Pb9Z0YANYjUs5k4n/Te01:edo8K8oCtOnYuwWvVEd7f1RZpANYA4/

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vepi
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: 0871PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral2/memory/816-2-0x0000000003DC0000-0x0000000003EDB000-memory.dmp	family_djvu
behavioral2/memory/3104-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3104-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3104-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3104-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3104-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4352-37-0x0000000000400000-0x0000000000537000-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

2348 icacls.exe

pid	process
2348	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe

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\\439aa9fe-a0a6-4e93-85f3-54a273f36d5a\\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe\" --AutoStart"	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.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

1 api.2ip.ua
2 api.2ip.ua
6 api.2ip.ua

flow	ioc
1	api.2ip.ua
2	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe

description	pid	process	target process
PID 816 set thread context of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 set thread context of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.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:

0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe

pid	process
3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
4352	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
4352	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe

C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
"C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:816

C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
"C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3104

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\439aa9fe-a0a6-4e93-85f3-54a273f36d5a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2348

C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
"C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1572

C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
"C:\Users\Admin\AppData\Local\Temp\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4352

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

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Downloads

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

MD5
9e130b50184e39e32205c9dd3befee15

SHA1
150b8bfb3208d3a854996e02c1470d81530335b5

SHA256
7b5bd8bc8ac2cd655c212c4790e5d9a259046730a9f0bb51616b036da55d2c50

SHA512
3cf76690e692c874792fa99d6358ebdd3596bab33bede653067375fc7de617eb7f150f52e640d34b2d51dcbe39c5bb88381bdc0279054ab65d5f1492d89f648f

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
f9f5db67db540d5e7f47b17ce9ac6c54

SHA1
0e8f6ebb17e70a3533de2a4f9a4f19162e852492

SHA256
96df74d8cc80da3d1d8eb4ead6c2b71bc0d068172a88a8285e914c9277e63f00

SHA512
3b003e870cd87c5fe5df72eff65ec66dd3f2c78e2dc1d267e608913907b4916b06ba915f0fef8dbcc6af08ba43bd05b78e0e5e5ccaad6143996222f83ac4f181

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

MD5
cd97b0b5e423066476cfc420a9748544

SHA1
e7967552a3fefb553ae8d825ecff5c5656150f8a

SHA256
20c0eeb64f34c8fb7d539c46e7e2cbab5f852dfdb8968c6a5153b6df638537a7

SHA512
252f83f277d99a16b50029a82df1ae4012d8f81af57436f4b11d58e7ea285bed48d4e2d417f3c5491a9761081ba0996977a15b0cdc9a2953a4750d2cd99bb056

Download Submit
C:\Users\Admin\AppData\Local\439aa9fe-a0a6-4e93-85f3-54a273f36d5a\0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
Filesize
771KB

MD5
68efa1ec3f227277cdb2949de32ed7b6

SHA1
ae14baa9795f3e2d3489d6633d1931cc8f342d89

SHA256
0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab

SHA512
9fed06969435d48457b28113c4ca6bf1fffa700781e64388fa773ff2cd31b37bb24310b48e6e38e33f140ab2cb2d0e74dfbf74e881d89db03701de085bc31a77

Download Submit
memory/816-2-0x0000000003DC0000-0x0000000003EDB000-memory.dmp

Filesize
1.1MB

Download
memory/816-1-0x0000000002380000-0x000000000241F000-memory.dmp

Filesize
636KB

Download
memory/3104-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3104-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3104-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3104-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3104-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4352-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 816 wrote to memory of 3104	816	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 3104 wrote to memory of 2348	3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	icacls.exe
PID 3104 wrote to memory of 2348	3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	icacls.exe
PID 3104 wrote to memory of 2348	3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	icacls.exe
PID 3104 wrote to memory of 1572	3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 3104 wrote to memory of 1572	3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 3104 wrote to memory of 1572	3104	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe
PID 1572 wrote to memory of 4352	1572	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe	0dd13bb53f2bf14cec90240dacf1dc23c001faf737540776867df1712019a7ab.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads