djvu | 46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86

General

Target

JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Size

800KB
MD5

483c827e527f4e67a36b600e5ee66f0b
SHA1

0ac3839b9e8ae5aa52d0666776043738bb8af57a
SHA256

46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86
SHA512

71a5cba3e02fa5b4e8deb49bff91db3876c2562940ff7bbdd7285f5c5fb949d0cd4cdd03945d9ea824c8fcf277023f2cf9564e4058d4dd0ccf8f57d2c01b8a48
SSDEEP

12288:T5InKMnY5Hs25Q0eGLyowWq0/5NEAMx94aFAcm4WGEAx1Xx9+44kCyZ7xOGb7HZ0:ChY5HZ5pOorqe5CRDlA0W21XxIt42

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/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-c565B1ILoZ 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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/4844-2-0x00000000023D0000-0x00000000024EB000-memory.dmp	family_djvu
behavioral2/memory/3872-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3872-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3872-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3872-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3872-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4092-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4092-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4092-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1716	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7eb437cc-b7fe-4758-aca3-a255ff64db19\\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe\" --AutoStart"	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	api.2ip.ua
13	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4844 set thread context of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 548 set thread context of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1724	4092	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 4844 wrote to memory of 3872	4844	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	83
PID 3872 wrote to memory of 1716	3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	84
PID 3872 wrote to memory of 1716	3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	84
PID 3872 wrote to memory of 1716	3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	84
PID 3872 wrote to memory of 548	3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	85
PID 3872 wrote to memory of 548	3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	85
PID 3872 wrote to memory of 548	3872	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	85
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88
PID 548 wrote to memory of 4092	548	JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4844
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\7eb437cc-b7fe-4758-aca3-a255ff64db19" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1716
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:548
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4092
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 568
        5⤵
        Program crash
        
        PID:1724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4092 -ip 4092
1⤵
PID:3120

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\7eb437cc-b7fe-4758-aca3-a255ff64db19\JaffaCakes118_46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86.exe

Filesize
800KB

MD5
483c827e527f4e67a36b600e5ee66f0b

SHA1
0ac3839b9e8ae5aa52d0666776043738bb8af57a

SHA256
46836b5df28fe1b4cc86208cc514b570280abfd5a3fefc24217f698c33190d86

SHA512
71a5cba3e02fa5b4e8deb49bff91db3876c2562940ff7bbdd7285f5c5fb949d0cd4cdd03945d9ea824c8fcf277023f2cf9564e4058d4dd0ccf8f57d2c01b8a48

Download Submit
memory/548-22-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/548-19-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/3872-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3872-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3872-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3872-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3872-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4092-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4092-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4092-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4844-1-0x0000000002330000-0x00000000023C8000-memory.dmp

Filesize
608KB

Download
memory/4844-2-0x00000000023D0000-0x00000000024EB000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads