djvu | 357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed

General

Target

JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Size

778KB
MD5

9c53d11853146233ed77de1092fb14a2
SHA1

aeb5a6d70216bae7e115d0ec369fcf4b17b82acb
SHA256

357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed
SHA512

81a9ccc0b9c537bff87589a3c5c449d2bca0c262883a2429fd609bcb4fcea4804458a3234cbf34102bb2ac12204bc030dfc49a349c6c050ab27a8b71137b7625
SSDEEP

12288:LXgJAI5MuMoW8jk58tqhTOKElwVialsxJyRKwZ9owWsQD2EbuRRFg05W0Hpq9:LGjMF8jYZLiLJqKi+wFUuxgiQ9

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/5056-2-0x00000000022B0000-0x00000000023CB000-memory.dmp	family_djvu
behavioral2/memory/4160-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4160-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4160-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4160-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4160-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4528-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4528-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4528-26-0x0000000000400000-0x0000000000537000-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_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1372	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\\69a15767-c89a-4541-aa71-0c295ce41a1d\\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe\" --AutoStart"	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.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 5056 set thread context of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 712 set thread context of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.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
5060	4528	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_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 5056 wrote to memory of 4160	5056	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	83
PID 4160 wrote to memory of 1372	4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	84
PID 4160 wrote to memory of 1372	4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	84
PID 4160 wrote to memory of 1372	4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	84
PID 4160 wrote to memory of 712	4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	85
PID 4160 wrote to memory of 712	4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	85
PID 4160 wrote to memory of 712	4160	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	85
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87
PID 712 wrote to memory of 4528	712	JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.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:4160
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\69a15767-c89a-4541-aa71-0c295ce41a1d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1372
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:712
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4528
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 568
        5⤵
        Program crash
        
        PID:5060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4528 -ip 4528
1⤵
PID:2476

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\69a15767-c89a-4541-aa71-0c295ce41a1d\JaffaCakes118_357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed.exe

Filesize
778KB

MD5
9c53d11853146233ed77de1092fb14a2

SHA1
aeb5a6d70216bae7e115d0ec369fcf4b17b82acb

SHA256
357b5cb6b5fb61e906639f66dea2e9570177a65a43d04c1ce8d3bce501df17ed

SHA512
81a9ccc0b9c537bff87589a3c5c449d2bca0c262883a2429fd609bcb4fcea4804458a3234cbf34102bb2ac12204bc030dfc49a349c6c050ab27a8b71137b7625

Download Submit
memory/712-29-0x0000000000400000-0x00000000004EE000-memory.dmp

Filesize
952KB

Download
memory/712-23-0x0000000000400000-0x00000000004EE000-memory.dmp

Filesize
952KB

Download
memory/4160-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4160-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4160-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4160-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4160-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4528-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4528-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4528-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5056-1-0x00000000007E0000-0x0000000000881000-memory.dmp

Filesize
644KB

Download
memory/5056-2-0x00000000022B0000-0x00000000023CB000-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