djvu | 978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee

General

Target

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
Size

749KB
MD5

f4b569f64ce6ed725fe2adb755792feb
SHA1

5921e7c2ea3d3f81f8ed2a96c4d9623b86fca5fa
SHA256

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee
SHA512

8d1f385765984535ec5fd32814ecad648ed38e49e495f047ec29f42907b85d06544b6e4d76828199eb6f7e5d78035140a4069936b01a6a9c5fbaa769c085dd25
SSDEEP

12288:yKVTQpN3MmxdHknVOH4A1wCFLPqjA8v4yTJ8mQiCZtDL/zle2ZsfqEkQ:yKVW9MmxdEnkYA1fLSj9HBGu2

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test2/get.php

Attributes

extension
.bgzq
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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0864PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4868-2-0x00000000048F0000-0x0000000004A0B000-memory.dmp	family_djvu
behavioral1/memory/3552-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3552-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3552-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3552-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3552-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3000-37-0x0000000000400000-0x0000000000537000-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

Processes:

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4636 icacls.exe

pid	process
4636	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\84333165-8a40-4e9d-885d-9ac422c112d6\\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe\" --AutoStart"	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.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

12 api.2ip.ua
13 api.2ip.ua
21 api.2ip.ua

flow	ioc
12	api.2ip.ua
13	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

description	pid	process	target process
PID 4868 set thread context of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 set thread context of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.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:

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

pid	process
3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
3000	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
3000	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
"C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4868

C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
"C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3552

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\84333165-8a40-4e9d-885d-9ac422c112d6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4636

C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
"C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2696

C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
"C:\Users\Admin\AppData\Local\Temp\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3000

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

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
c35390cd7305291de0cfa7de08b0da99

SHA1
ccb6a65f324fbdadd872ca23d256ece85cce447d

SHA256
fc283d50ca01bbec2d1061d644d41108aa1d2e19d1b6858ccada4f1329710e51

SHA512
32c7b4b6250c6eb0d07859f195364f08655fb3567ca023d3c85e32f5d141adc4966f30fc11ee1607d0246ba91117e88917b58d9978e4b2edbfaffb3dc6fd7d59

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
b2662ecabfb008e8081a3163b89688fc

SHA1
36e1b47fc5436e32341e07ca65f45c92b5bd22ae

SHA256
e8337b93575f879cf694b0650d7eed7334504eeef1e968e0bae84d88901ed8b5

SHA512
cf644efb411d20de441040561c0e4aed6c569954b935e0ef52c7d76d4d1e85200704855412bc1e8670970e3312f26cb663ab95c5ae309f39ab65369b286d1a41

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

Filesize
392B

MD5
21ebf1dabce67d3eef7ac57d2dab605b

SHA1
00666b8519e535e0b3071158c93cb14a92f4d755

SHA256
de3dab59b931487294d3aef8b846f4dd5800ecb512625ab9a5fcdfd32893e220

SHA512
95b6a09bc7eb39fc6d215921c9439da4fd3a076a1cb69dfd97faa730f369657650300e18584026eb72504ac3285816c36fce058885aaa80090c29877c88aeff1

Download Submit
C:\Users\Admin\AppData\Local\84333165-8a40-4e9d-885d-9ac422c112d6\978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

Filesize
749KB

MD5
f4b569f64ce6ed725fe2adb755792feb

SHA1
5921e7c2ea3d3f81f8ed2a96c4d9623b86fca5fa

SHA256
978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee

SHA512
8d1f385765984535ec5fd32814ecad648ed38e49e495f047ec29f42907b85d06544b6e4d76828199eb6f7e5d78035140a4069936b01a6a9c5fbaa769c085dd25

Download Submit
memory/3000-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3000-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3552-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3552-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3552-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3552-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3552-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4868-2-0x00000000048F0000-0x0000000004A0B000-memory.dmp

Filesize
1.1MB

Download
memory/4868-1-0x0000000002ED0000-0x0000000002F6C000-memory.dmp

Filesize
624KB

Download

description	pid	process	target process
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 4868 wrote to memory of 3552	4868	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 3552 wrote to memory of 4636	3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	icacls.exe
PID 3552 wrote to memory of 4636	3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	icacls.exe
PID 3552 wrote to memory of 4636	3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	icacls.exe
PID 3552 wrote to memory of 2696	3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 3552 wrote to memory of 2696	3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 3552 wrote to memory of 2696	3552	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe
PID 2696 wrote to memory of 3000	2696	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe	978bd8eed6c9064143730bc4f23b695c5523a337991adff2a02a08d9e20a75ee.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads