djvu | c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593

General

Target

JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
Size

762KB
MD5

5e2e3d1200fa869a7942eab2ae936a7d
SHA1

a0a1e248fd37a1944cd51ece2b63b96f887cd32d
SHA256

c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593
SHA512

ad55d14a97d8490656435689eed7072cb4ab4b50b2e82f036e3c40abc57ada73319d23f38be796a9fdad3142bf895ebe781d1e9981b7438f1e9ca137390dbbce
SSDEEP

12288:4j0GNLBhir0kHOlbkTA+nNLwUFh2aPrWHh7WAgtiXG5Tb5Zxq:4PNLq0kH0tm3kaPrAh7WxtzTb0

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.nuhb
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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-c565B1ILoZ 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: 0453Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/552-2-0x0000000002180000-0x000000000229B000-memory.dmp	family_djvu
behavioral2/memory/1700-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2060-47-0x0000000000400000-0x0000000000537000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1952	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\52c50f5a-275c-475a-a2a4-8f0ca4e59ed5\\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe\" --AutoStart"	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.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
9	api.2ip.ua
11	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 552 set thread context of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 4300 set thread context of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.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_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
2060	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
2060	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 552 wrote to memory of 1700	552	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	82
PID 1700 wrote to memory of 1952	1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	83
PID 1700 wrote to memory of 1952	1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	83
PID 1700 wrote to memory of 1952	1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	83
PID 1700 wrote to memory of 4300	1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	84
PID 1700 wrote to memory of 4300	1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	84
PID 1700 wrote to memory of 4300	1700	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	84
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86
PID 4300 wrote to memory of 2060	4300	JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:552
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.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:1700
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\52c50f5a-275c-475a-a2a4-8f0ca4e59ed5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1952
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4300
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2060

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
acded6534b771ab4ab35db3cccab4f49

SHA1
340b3a6a16e893c9d99a790c79c51db15aa3d10d

SHA256
4fe7ce186a2693e4af58a1f3cba495f241a56efcf4beb23c2026c8fac9af04fe

SHA512
10bcf9e89ab5c2581e2b804aad6b68120590fb67770b7ed5ca27153d4ef7208b3fc47f9802d48797bf01fc8c9a839bc08338dde52fe6f64611447b96b9e533ac

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

Filesize
170B

MD5
5b25fa5b85e05c109b8bd701f01536e2

SHA1
36b509917a7c0b05756115dc68c5914b6b0d18a0

SHA256
59db51881259527be58f33794741488ae480d7de14f9bfb47cd77e585699dea0

SHA512
892756784d71f7286ca674df200209647740c7529e207dded3fe9b3a8369d4a9df2e31d95c53df259aa45ac9f6dbe728dd0226c8ed4ea086fa72a43d2c226cbd

Download Submit
C:\Users\Admin\AppData\Local\52c50f5a-275c-475a-a2a4-8f0ca4e59ed5\JaffaCakes118_c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593.exe

Filesize
762KB

MD5
5e2e3d1200fa869a7942eab2ae936a7d

SHA1
a0a1e248fd37a1944cd51ece2b63b96f887cd32d

SHA256
c0bc99d1d191a08b6e5e56d4264aea78de9d8016e10973c364fc526bb795f593

SHA512
ad55d14a97d8490656435689eed7072cb4ab4b50b2e82f036e3c40abc57ada73319d23f38be796a9fdad3142bf895ebe781d1e9981b7438f1e9ca137390dbbce

Download Submit
memory/552-1-0x00000000020E0000-0x0000000002175000-memory.dmp

Filesize
596KB

Download
memory/552-2-0x0000000002180000-0x000000000229B000-memory.dmp

Filesize
1.1MB

Download
memory/1700-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2060-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4300-19-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/4300-23-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads