djvu | 19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696

General

Target

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
Size

691KB
MD5

d26082c8ae68b4c546843f32325c01dd
SHA1

32dbba008b93a3c2f8fc8fadccf7d5c7ab096f87
SHA256

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696
SHA512

2a1656d8c2cf6991780b0665a6815b58eaa31e1584fa6154207b540c5294e0c4848516d7f4717b6cf2fb70edf3ff9ca5f256035ab24eab88417396db80aadaec
SSDEEP

12288:SYJsO0qghZwfnpR+yUAg0BOCtK8V/zKbvDDVKu05dHY30hldLZGUh1U:PAZwfnpXUgOOK+mbvNKd8oldLZn

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.qual
offline_id
KLbRmn6on3AXGFgDLGtd0IkHmV7uHw9VxlcxO5t1
payload_url
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. 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: 0876qual

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral1/memory/2832-2-0x00000000023E0000-0x00000000024FB000-memory.dmp	family_djvu
behavioral1/memory/3124-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3124-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3124-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3124-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3124-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/216-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2108	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-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\9bb9fe1a-67fa-4d17-b945-a328404d517e\\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe\" --AutoStart"	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.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
15	api.2ip.ua
16	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 4732 set thread context of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90

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
3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
216	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
216	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 2832 wrote to memory of 3124	2832	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	86
PID 3124 wrote to memory of 2108	3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	87
PID 3124 wrote to memory of 2108	3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	87
PID 3124 wrote to memory of 2108	3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	87
PID 3124 wrote to memory of 4732	3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	88
PID 3124 wrote to memory of 4732	3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	88
PID 3124 wrote to memory of 4732	3124	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	88
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90
PID 4732 wrote to memory of 216	4732	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	90

C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
"C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2832
- C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
  "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3124
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\9bb9fe1a-67fa-4d17-b945-a328404d517e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2108
- - C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
    "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4732
  - - C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
      "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:216

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
7fb5fa1534dcf77f2125b2403b30a0ee

SHA1
365d96812a69ac0a4611ea4b70a3f306576cc3ea

SHA256
33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

SHA512
a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
1bfe0a81db078ea084ff82fe545176fe

SHA1
50b116f578bd272922fa8eae94f7b02fd3b88384

SHA256
5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

SHA512
37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
d7355f6db788d15c64dfb36b0c49ba7e

SHA1
22cadd4535442fa468072c34c86d2b24a37a7186

SHA256
c1808fb6c6a7e7c28a12c1fa1ef57d48254e1888eecd7bd06d4e6306036b5a02

SHA512
339d6cd4cebb69d510e08ab6834a185e9dabf2137a9a496a41d34b1f60cd3bb542c282de6953f2c3883e88b37ebc3320a7eb853be755bae3cb0ed5396fedb400

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
f838f5724313ae168ac041154157413a

SHA1
df7a72ef8daa4347a7d069d48491e8bf82790ab9

SHA256
c7870cc740e9164ea69fd5a378aeb047321a8c2e8fb1e1acd684f85c870d8602

SHA512
d0e6477d2e4c03eef4c51500775d3f98eb08274831fc4b15bf2d682189a0fd11a92d1c2a23e503d9e330bdfac0642471694e036b25f4e86ececc3314a469a259

Download Submit
C:\Users\Admin\AppData\Local\9bb9fe1a-67fa-4d17-b945-a328404d517e\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Filesize
691KB

MD5
d26082c8ae68b4c546843f32325c01dd

SHA1
32dbba008b93a3c2f8fc8fadccf7d5c7ab096f87

SHA256
19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696

SHA512
2a1656d8c2cf6991780b0665a6815b58eaa31e1584fa6154207b540c5294e0c4848516d7f4717b6cf2fb70edf3ff9ca5f256035ab24eab88417396db80aadaec

Download Submit
memory/216-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/216-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2832-1-0x0000000002340000-0x00000000023E0000-memory.dmp

Filesize
640KB

Download
memory/2832-2-0x00000000023E0000-0x00000000024FB000-memory.dmp

Filesize
1.1MB

Download
memory/3124-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3124-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3124-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3124-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3124-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4732-23-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/4732-19-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads