djvu | bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f

General

Target

JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
Size

847KB
MD5

1ae89d537153b31ef5b45d4f53912bd9
SHA1

93783cba0bd7805b1120215c309960fc8a2a330f
SHA256

bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f
SHA512

5084f9ef5eec836f64bc6e2991b7b5fa1986f4384f9dc1a8eb11aaafd94be19333356993f7e3f7bbd5d4b697e6991b761be8f4f052b13f27b014bfa7bc667b79
SSDEEP

12288:FFudg7PYA+gbrKcHcEtrnqIp0pGIv0QlZSFvi/xsn5lXICunnwRPd:zNPYAv5trJY0QlZSAolYwR

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.udla
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: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/1980-2-0x0000000002430000-0x000000000254B000-memory.dmp	family_djvu
behavioral2/memory/880-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/880-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/880-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/880-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/880-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4468-50-0x0000000000400000-0x0000000000537000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2024	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cdc44828-2147-4c3d-9015-87d58a32f5ea\\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe\" --AutoStart"	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.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
11	api.2ip.ua
12	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1980 set thread context of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 556 set thread context of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86

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_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
4468	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
4468	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 1980 wrote to memory of 880	1980	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	82
PID 880 wrote to memory of 2024	880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	83
PID 880 wrote to memory of 2024	880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	83
PID 880 wrote to memory of 2024	880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	83
PID 880 wrote to memory of 556	880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	84
PID 880 wrote to memory of 556	880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	84
PID 880 wrote to memory of 556	880	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	84
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86
PID 556 wrote to memory of 4468	556	JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.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:880
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\cdc44828-2147-4c3d-9015-87d58a32f5ea" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2024
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:556
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4468

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\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
57576acedd5493e14210bf592f328320

SHA1
3c375bb91bc24bc899873918ab0562400a5dddff

SHA256
41b5e070dbb005e9ac70e2491e50dec9d09b1968f34e1df1f5f37f6a55914db7

SHA512
b8b30b1e5497c437c088b7133ec307fc08048eb85e4ca2c237f5cf16614d7a198fc216e119077bc305963243446c89031da75ac0294a7e5c9ac3bf5ac6c80cc2

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

Filesize
170B

MD5
9569097c91a9f3af6bd6dbdeb90eb7ea

SHA1
e594681f4c60a50ee9fc9b40befa347d4a11003c

SHA256
b0195d578219f528eb1c724f69f1df3616db22d68ca9c39e37b6fe67c90615f1

SHA512
7822c5b36737f7a545ad147aab282f44209b71a69f12844e580923a55f9cb2eb79733941b950203e3b62f7e54f30f59c2427acf560cff4a0c280c1afbfb9baf5

Download Submit
C:\Users\Admin\AppData\Local\cdc44828-2147-4c3d-9015-87d58a32f5ea\JaffaCakes118_bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f.exe

Filesize
847KB

MD5
1ae89d537153b31ef5b45d4f53912bd9

SHA1
93783cba0bd7805b1120215c309960fc8a2a330f

SHA256
bf72acd15dc41b8298358affbaba1e99b30cfef383b34e665870ac29ce27015f

SHA512
5084f9ef5eec836f64bc6e2991b7b5fa1986f4384f9dc1a8eb11aaafd94be19333356993f7e3f7bbd5d4b697e6991b761be8f4f052b13f27b014bfa7bc667b79

Download Submit
memory/556-23-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/556-19-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/880-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/880-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/880-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/880-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/880-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1980-2-0x0000000002430000-0x000000000254B000-memory.dmp

Filesize
1.1MB

Download
memory/1980-1-0x00000000022E0000-0x0000000002381000-memory.dmp

Filesize
644KB

Download
memory/4468-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4468-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads