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

Processes:

resource	yara_rule
behavioral2/memory/1356-2-0x0000000002440000-0x000000000255B000-memory.dmp	family_djvu
behavioral2/memory/3068-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3068-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3068-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3068-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3068-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-41-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2104-42-0x0000000000400000-0x0000000000537000-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
4604	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-95457810-830748662-4054918673-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\4888b19f-6926-49f6-bf53-c8a6a3b22b8b\\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.

Processes:

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

description	pid	Process	procid_target
PID 1356 set thread context of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1604 set thread context of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83

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:

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

pid	Process
3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
2104	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
2104	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

description	pid	Process	procid_target
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 1356 wrote to memory of 3068	1356	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	78
PID 3068 wrote to memory of 4604	3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	79
PID 3068 wrote to memory of 4604	3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	79
PID 3068 wrote to memory of 4604	3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	79
PID 3068 wrote to memory of 1604	3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	80
PID 3068 wrote to memory of 1604	3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	80
PID 3068 wrote to memory of 1604	3068	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	80
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83
PID 1604 wrote to memory of 2104	1604	19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe	83

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:1356
- C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
  "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3068
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\4888b19f-6926-49f6-bf53-c8a6a3b22b8b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4604
- - 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:1604
  - - C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe
      "C:\Users\Admin\AppData\Local\Temp\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2104

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\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
7ee20079da24329f84bc213c5261c35e

SHA1
aef043d76658b7713e1092d5f9ff36d0cd621f27

SHA256
33cd0fc9cc4277fa4ce9176c012e1c7ceacc54c81d344637c036aaf9a5aad229

SHA512
372ad90417b3fc3a72e4bf6a10e2de307ba220cd9f395883186b0e49e016800343fb8ca5e60c2f5c62c30d10f9726a0a27c0c8e7c9f6b837df0825f37cb1f330

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

Filesize
170B

MD5
f7e4045ac9a04c2e422667351c174724

SHA1
501eef3fdc9e515ed841d89bb47f3c0c62a65234

SHA256
bd49a20612263a482a92b966fe1e0dfa6d6d0b3bd1f959284d6a226715bf68c5

SHA512
bc4277c30e46a82568aae11a3f9d263e689a313fab3a5d8fd3f78a95abd0211020f1733a6b5d93f56db4638ee92d9d0a41aa88031af889a0796532a4cbe14221

Download Submit
C:\Users\Admin\AppData\Local\4888b19f-6926-49f6-bf53-c8a6a3b22b8b\19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696.exe

Filesize
691KB

MD5
d26082c8ae68b4c546843f32325c01dd

SHA1
32dbba008b93a3c2f8fc8fadccf7d5c7ab096f87

SHA256
19f17c78dffb74e7acc35cf715689b8157b04b833e522b427b7eda1cc7324696

SHA512
2a1656d8c2cf6991780b0665a6815b58eaa31e1584fa6154207b540c5294e0c4848516d7f4717b6cf2fb70edf3ff9ca5f256035ab24eab88417396db80aadaec

Download Submit
memory/1356-2-0x0000000002440000-0x000000000255B000-memory.dmp

Filesize
1.1MB

Download
memory/1356-1-0x00000000023A0000-0x0000000002433000-memory.dmp

Filesize
588KB

Download
memory/1604-24-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/1604-22-0x0000000000400000-0x000000000053D000-memory.dmp

Filesize
1.2MB

Download
memory/2104-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-41-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3068-19-0x0000000000400000-0x0000000000537000-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