djvu | c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096

General

Target

JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Size

768KB
MD5

31be9b57d69e7969b52069e5e8f7e49d
SHA1

ff64c79866bfc4dfcc9cf5bcab84f63c7e94797f
SHA256

c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096
SHA512

6acb43b0370bfe29ea7366e028b409ab83b5214e79cf729a3ab43af8d11855d4f1d6fd38d7893b0f63b14d9c5a1ce7bda6aa612e80e64dd75cc8139152dd209d
SSDEEP

12288:gRokZncF5Y4LgR7UTg1IRcWnnHGCyx0Zkn9c5pBtbyq4oVMWM0kRf8kq5DjjV:OZn2Y481Ec8HGuenyLbyqNMWM0Mf8h5T

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/4704-2-0x0000000002460000-0x000000000257B000-memory.dmp	family_djvu
behavioral2/memory/2144-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2144-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2144-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2144-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2144-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4668-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4668-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4668-22-0x0000000000400000-0x0000000000537000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4780	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7b0112e0-22fa-46f8-bf94-9e5bc6580b07\\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe\" --AutoStart"	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.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
5	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4704 set thread context of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 940 set thread context of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87

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
2240	4668	WerFault.exe	87

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_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 4704 wrote to memory of 2144	4704	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	83
PID 2144 wrote to memory of 4780	2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	84
PID 2144 wrote to memory of 4780	2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	84
PID 2144 wrote to memory of 4780	2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	84
PID 2144 wrote to memory of 940	2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	85
PID 2144 wrote to memory of 940	2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	85
PID 2144 wrote to memory of 940	2144	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	85
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87
PID 940 wrote to memory of 4668	940	JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4704
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.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:2144
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\7b0112e0-22fa-46f8-bf94-9e5bc6580b07" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4780
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:940
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4668
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 568
        5⤵
        Program crash
        
        PID:2240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4668 -ip 4668
1⤵
PID:2936

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\7b0112e0-22fa-46f8-bf94-9e5bc6580b07\JaffaCakes118_c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096.exe

Filesize
768KB

MD5
31be9b57d69e7969b52069e5e8f7e49d

SHA1
ff64c79866bfc4dfcc9cf5bcab84f63c7e94797f

SHA256
c7172ba1d31256a64874b1345820d24c72eaa9f99caac5f005c59d639e0ea096

SHA512
6acb43b0370bfe29ea7366e028b409ab83b5214e79cf729a3ab43af8d11855d4f1d6fd38d7893b0f63b14d9c5a1ce7bda6aa612e80e64dd75cc8139152dd209d

Download Submit
memory/940-25-0x0000000000400000-0x00000000004E9000-memory.dmp

Filesize
932KB

Download
memory/940-19-0x0000000000400000-0x00000000004E9000-memory.dmp

Filesize
932KB

Download
memory/2144-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2144-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2144-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2144-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2144-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4668-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4704-1-0x00000000022D0000-0x0000000002368000-memory.dmp

Filesize
608KB

Download
memory/4704-2-0x0000000002460000-0x000000000257B000-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