djvu | a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92

General

Target

JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
Size

833KB
MD5

c9c63f746a050322a9bf97882a984517
SHA1

1adea86208f175391145f3d2c1796bae3adb917f
SHA256

a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92
SHA512

125ca034e9adc6997b71120410e459ba6aa7d584435fee00f624572f0af2cea70541a10910931fef2f5a98e7e819dfc522bd0e84e1aedbb42442a9cb8d6f9ef8
SSDEEP

12288:kmVlEiAyfV0tM01+N01239KVvt66GwI4GBQ/fMLPRdpWw5AYKhTd9OunnwQ7RX:v0iAyfV0tMc+y44DGSR/f+pdL6hTdvw

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.gtys
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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-fnn5kv33Vv 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: 0439JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/3512-2-0x0000000000A20000-0x0000000000B3B000-memory.dmp	family_djvu
behavioral2/memory/3672-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3672-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3672-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3672-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3672-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4624-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4624-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4624-24-0x0000000000400000-0x0000000000537000-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_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3548	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\\115f8742-ff05-4130-9641-cc85a990d13a\\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe\" --AutoStart"	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.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 3512 set thread context of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 64 set thread context of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.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
1676	4624	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_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3512 wrote to memory of 3672	3512	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	83
PID 3672 wrote to memory of 3548	3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	84
PID 3672 wrote to memory of 3548	3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	84
PID 3672 wrote to memory of 3548	3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	84
PID 3672 wrote to memory of 64	3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	85
PID 3672 wrote to memory of 64	3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	85
PID 3672 wrote to memory of 64	3672	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	85
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88
PID 64 wrote to memory of 4624	64	JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3512
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.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:3672
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\115f8742-ff05-4130-9641-cc85a990d13a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3548
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:64
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4624
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4624 -s 568
        5⤵
        Program crash
        
        PID:1676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4624 -ip 4624
1⤵
PID:2712

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\115f8742-ff05-4130-9641-cc85a990d13a\JaffaCakes118_a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92.exe

Filesize
833KB

MD5
c9c63f746a050322a9bf97882a984517

SHA1
1adea86208f175391145f3d2c1796bae3adb917f

SHA256
a48a97fb041e82f99f8615ce9d5f12b455d9bc90485ab17ca5e614c013163c92

SHA512
125ca034e9adc6997b71120410e459ba6aa7d584435fee00f624572f0af2cea70541a10910931fef2f5a98e7e819dfc522bd0e84e1aedbb42442a9cb8d6f9ef8

Download Submit
memory/64-25-0x0000000000400000-0x0000000000514000-memory.dmp

Filesize
1.1MB

Download
memory/64-19-0x0000000000400000-0x0000000000514000-memory.dmp

Filesize
1.1MB

Download
memory/3512-2-0x0000000000A20000-0x0000000000B3B000-memory.dmp

Filesize
1.1MB

Download
memory/3512-1-0x0000000000780000-0x0000000000820000-memory.dmp

Filesize
640KB

Download
memory/3672-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3672-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3672-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3672-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3672-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4624-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4624-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4624-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads