djvu | bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7

General

Target

JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
Size

726KB
MD5

cae4e2ca631cc4a4b61f6d23061c594f
SHA1

71bb292c047fdc57bcc31ca37fde8e5893a2fe45
SHA256

bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7
SHA512

54e99f8e39fd1eaa97f3473df915f834f4acc4e86755a790fb08ca7cbe04f002b93a9b581b355cc053814bf7f4f066ad811011a63f52beb7602734eb538e6c85
SSDEEP

12288:v4yjfHgCzvBypdZJ3FF02qtQ80+Alpn9jVGg3Z3iDEhtIVxn1koYLqngBiDZ:v4YfgCzvBC3FF02qtQqrgJyI0VxnWouI

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.msjd
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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-FT7BNVbXC9 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: 0455JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/1664-2-0x0000000002350000-0x000000000246B000-memory.dmp	family_djvu
behavioral2/memory/3544-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/556-47-0x0000000000400000-0x0000000000537000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3024	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\61c3191f-f639-4f52-93e2-a8f42b79d8da\\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe\" --AutoStart"	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
13	api.2ip.ua
14	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1664 set thread context of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 4568 set thread context of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89

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

System Information Discovery
T1082

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_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
556	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
556	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 1664 wrote to memory of 3544	1664	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	83
PID 3544 wrote to memory of 3024	3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	84
PID 3544 wrote to memory of 3024	3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	84
PID 3544 wrote to memory of 3024	3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	84
PID 3544 wrote to memory of 4568	3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	86
PID 3544 wrote to memory of 4568	3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	86
PID 3544 wrote to memory of 4568	3544	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	86
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89
PID 4568 wrote to memory of 556	4568	JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.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:3544
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\61c3191f-f639-4f52-93e2-a8f42b79d8da" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3024
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4568
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:556

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\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
67e486b2f148a3fca863728242b6273e

SHA1
452a84c183d7ea5b7c015b597e94af8eef66d44a

SHA256
facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

SHA512
d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
42dbdc9337010fa39792446c613406dd

SHA1
8d5b3ab3822016d447531fe429ea13bbac8419fe

SHA256
2b79fd7a1519e1d815d277ce7d95837ca09e2a161aa8cfbff7e85bf698cf695b

SHA512
0cd6a44c4b3cb98a072f692002558af5b4dad8ca72fa9456ecb99903a89d892d3b544573c4604700e69c88d16685d622c48d8329c6231baeb76f2e514e3ac1d3

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
75cdf490c8c202c9790cf7c4dd2357cb

SHA1
42ad73b279ba1775ac857ea758f3d1099e7ae9f7

SHA256
964bc83492bb9e86d821ff8da99ccf127733bce6a7f5b4158552b03c2b210825

SHA512
74b72be431fd8f1152e4caaafc533e13627455e5b6122c4896a19e9373332a881662fcee920beab9af0999dbef7b734dde3dc0e4c5782de2a0fbbef868275eba

Download Submit
C:\Users\Admin\AppData\Local\61c3191f-f639-4f52-93e2-a8f42b79d8da\JaffaCakes118_bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7.exe

Filesize
726KB

MD5
cae4e2ca631cc4a4b61f6d23061c594f

SHA1
71bb292c047fdc57bcc31ca37fde8e5893a2fe45

SHA256
bedcba0ab01edb46227c39df4fab1ea1f2bb99a04b8b185ffe93bcc117e04dd7

SHA512
54e99f8e39fd1eaa97f3473df915f834f4acc4e86755a790fb08ca7cbe04f002b93a9b581b355cc053814bf7f4f066ad811011a63f52beb7602734eb538e6c85

Download Submit
memory/556-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/556-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1664-2-0x0000000002350000-0x000000000246B000-memory.dmp

Filesize
1.1MB

Download
memory/1664-1-0x0000000000A20000-0x0000000000AB4000-memory.dmp

Filesize
592KB

Download
memory/3544-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4568-23-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/4568-19-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads