djvu | 149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa

General

Target

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
Size

704KB
MD5

a5b4c672812208b47b9a9370902d4e1c
SHA1

0efd3da2bcad33fc6c91fc8a1c2a499c889eb2f6
SHA256

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa
SHA512

a73c950fcbb9d589597bd1da87f8a3c5af8681af09623dcf9d74ec84ab2bd1c4de17a55d60c6f5b8289fc4e67fa37f1099060c18f595c3d05c1b6b9e2c6ea3db
SSDEEP

12288:Kb5LkZOpTQZuXnpsyWUG8SeIILhb7b/UHAJzRvFbTROzVccw1fx5BFqGvpV7sNJy:K9hpTRXn0kPDLhbE2hNIDwhx5BwGpxse

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.tcvp
offline_id
JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1
payload_url
http://uaery.top/dl/build2.exe

http://fresherlights.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. You can get and look video overview decrypt tool: https://we.tl/t-bpYXr2m3kI Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0604Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1340-133-0x00000000024E0000-0x00000000025FB000-memory.dmp	family_djvu
behavioral1/memory/4728-135-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4728-136-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4728-137-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4728-138-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4728-142-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3448-146-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3448-147-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3448-149-0x0000000000400000-0x0000000000537000-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:

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4796 icacls.exe

pid	process
4796	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fd84d82a-1cb2-4309-8c69-274dda7d80f9\\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe\" --AutoStart"	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

40 api.2ip.ua

flow	ioc
40	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

description	pid	process	target process
PID 1340 set thread context of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 set thread context of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

pid	process
4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
3448	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
3448	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
"C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1340

C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
"C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4728

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\fd84d82a-1cb2-4309-8c69-274dda7d80f9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4796

C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
"C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4624

C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
"C:\Users\Admin\AppData\Local\Temp\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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\Local\fd84d82a-1cb2-4309-8c69-274dda7d80f9\149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

Filesize
704KB

MD5
a5b4c672812208b47b9a9370902d4e1c

SHA1
0efd3da2bcad33fc6c91fc8a1c2a499c889eb2f6

SHA256
149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa

SHA512
a73c950fcbb9d589597bd1da87f8a3c5af8681af09623dcf9d74ec84ab2bd1c4de17a55d60c6f5b8289fc4e67fa37f1099060c18f595c3d05c1b6b9e2c6ea3db

Download Submit
memory/1340-133-0x00000000024E0000-0x00000000025FB000-memory.dmp

Filesize
1.1MB

Download
memory/1340-132-0x0000000002444000-0x00000000024D5000-memory.dmp

Filesize
580KB

Download
memory/3448-149-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3448-147-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3448-146-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3448-143-0x0000000000000000-mapping.dmp

Download
memory/4624-145-0x000000000220F000-0x00000000022A0000-memory.dmp

Filesize
580KB

Download
memory/4624-141-0x0000000000000000-mapping.dmp

Download
memory/4728-142-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4728-138-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4728-137-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4728-136-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4728-135-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4728-134-0x0000000000000000-mapping.dmp

Download
memory/4796-139-0x0000000000000000-mapping.dmp

Download

description	pid	process	target process
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 1340 wrote to memory of 4728	1340	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4728 wrote to memory of 4796	4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	icacls.exe
PID 4728 wrote to memory of 4796	4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	icacls.exe
PID 4728 wrote to memory of 4796	4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	icacls.exe
PID 4728 wrote to memory of 4624	4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4728 wrote to memory of 4624	4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4728 wrote to memory of 4624	4728	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe
PID 4624 wrote to memory of 3448	4624	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe	149e33d50a048306a5341b43a5eb1ccb9b2e9e1e86e0e3c8bf4162f063178afa.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads