djvu | e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e

General

Target

e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe
Size

882KB
MD5

3b2c578c061884df98ea3151f43937b8
SHA1

49ea82b9f3960d9b762572e2a4ee8974868f533a
SHA256

e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e
SHA512

7793af32b69662c7d421a6ce26fde421ff7c1d30a38093821b449bae6d15635a426936e99678e78191d86db468dc3f4f409eeadcae4b9bacc7ec9723c7f0608d
SSDEEP

24576:vP1L1XWddwDFxgK1gIX1U5nsFAYqcWC3Y:vPrwdfUb3qcvY

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.mppn
offline_id
d1BN9KEra4Hetg5GUH0nQZqy14sntD2NbihzGQt1
payload_url
http://uaery.top/dl/build2.exe

http://abibiall.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-8aIWIsUQt9 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: 0612Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 5 IoCs

resource	yara_rule
behavioral1/memory/4848-133-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4848-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4956-136-0x0000000002350000-0x000000000246B000-memory.dmp	family_djvu
behavioral1/memory/4848-137-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4848-138-0x0000000000400000-0x0000000000537000-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

pid	Process
3844	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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\\96305af0-3b5c-4372-bec8-dc36cdb0d8ad\\e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe\" --AutoStart"	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.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
26	api.2ip.ua
82	api.2ip.ua
25	api.2ip.ua

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4956 set thread context of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4848	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe
4848	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4956 wrote to memory of 4848	4956	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	81
PID 4848 wrote to memory of 3844	4848	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	91
PID 4848 wrote to memory of 3844	4848	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	91
PID 4848 wrote to memory of 3844	4848	e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe	91

C:\Users\Admin\AppData\Local\Temp\e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe
"C:\Users\Admin\AppData\Local\Temp\e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4956
- C:\Users\Admin\AppData\Local\Temp\e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe
  "C:\Users\Admin\AppData\Local\Temp\e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4848
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\96305af0-3b5c-4372-bec8-dc36cdb0d8ad" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3844

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\96305af0-3b5c-4372-bec8-dc36cdb0d8ad\e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e.exe

Filesize
882KB

MD5
3b2c578c061884df98ea3151f43937b8

SHA1
49ea82b9f3960d9b762572e2a4ee8974868f533a

SHA256
e47af8a6358d1a1dd1f766388b981fbbd3625df868b00c48ccc507def5d11c4e

SHA512
7793af32b69662c7d421a6ce26fde421ff7c1d30a38093821b449bae6d15635a426936e99678e78191d86db468dc3f4f409eeadcae4b9bacc7ec9723c7f0608d

Download Submit
memory/4848-133-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4848-134-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4848-137-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4848-138-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4956-135-0x0000000000A29000-0x0000000000ABB000-memory.dmp

Filesize
584KB

Download
memory/4956-136-0x0000000002350000-0x000000000246B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing