djvu | 24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324

General

Target

JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Size

785KB
MD5

65ac13d692318302e314eb2ed5627476
SHA1

4ccd691fdbac8ee6b3c2494e36d176d1498c0722
SHA256

24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324
SHA512

c6b3076d4f86422ea503d5eaefd898a07abce2311d80aead8273346d824ea914d11e4cbae143a98cf5a8cfc5ee295946a2b233bf1443d6a9a9c229a7704c25b8
SSDEEP

12288:MA4LD6Opx5KGkZUGjucDeL300guAOkELEcqy8KjLmIYk71O/N52TD9yiz:MBLzX5BcDe3AbwqyFmIYkwOou

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
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-FglTTmgzZT 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/3976-2-0x0000000002180000-0x000000000229B000-memory.dmp	family_djvu
behavioral2/memory/2052-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2052-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2052-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2052-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2052-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3852-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3852-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3852-21-0x0000000000400000-0x0000000000537000-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_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
672	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\\b1c1e72c-2343-4f6a-9ea8-e97e7ac1da36\\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe\" --AutoStart"	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.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
11	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3976 set thread context of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 548 set thread context of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.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
1280	3852	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_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 3976 wrote to memory of 2052	3976	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	83
PID 2052 wrote to memory of 672	2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	84
PID 2052 wrote to memory of 672	2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	84
PID 2052 wrote to memory of 672	2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	84
PID 2052 wrote to memory of 548	2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	85
PID 2052 wrote to memory of 548	2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	85
PID 2052 wrote to memory of 548	2052	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	85
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87
PID 548 wrote to memory of 3852	548	JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.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:2052
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\b1c1e72c-2343-4f6a-9ea8-e97e7ac1da36" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:672
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.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_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:3852
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 568
        5⤵
        Program crash
        
        PID:1280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3852 -ip 3852
1⤵
PID:1272

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\b1c1e72c-2343-4f6a-9ea8-e97e7ac1da36\JaffaCakes118_24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324.exe

Filesize
785KB

MD5
65ac13d692318302e314eb2ed5627476

SHA1
4ccd691fdbac8ee6b3c2494e36d176d1498c0722

SHA256
24553f17e5c7e745929240d6345c778ccb6ff5a05e2fed47e50a6f93fe039324

SHA512
c6b3076d4f86422ea503d5eaefd898a07abce2311d80aead8273346d824ea914d11e4cbae143a98cf5a8cfc5ee295946a2b233bf1443d6a9a9c229a7704c25b8

Download Submit
memory/548-22-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/548-19-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/2052-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2052-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2052-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2052-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2052-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3852-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3852-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3852-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3976-2-0x0000000002180000-0x000000000229B000-memory.dmp

Filesize
1.1MB

Download
memory/3976-1-0x00000000020E0000-0x0000000002177000-memory.dmp

Filesize
604KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads