djvu | cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353

General

Target

JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Size

800KB
MD5

215ef8c9fd78b2413067cafab6c84f40
SHA1

47cbc8b9298d6a43c6699b6ce8325951f0d98a9b
SHA256

cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353
SHA512

0b92f976679f49d988cf9755ee0372394ae875eda3f4a1423509f22f1c365be2641cecf7c560d37343fcc222a13a7ed00e8d74b240ded7c6aa6ad951ec22f5fb
SSDEEP

24576:vXCb54N1CCEjoQjyLonWTbemE7GKBOMcy:vXcaN1M5ooWTbqNBU

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/4280-2-0x0000000002240000-0x000000000235B000-memory.dmp	family_djvu
behavioral2/memory/4420-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4420-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4420-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4420-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4420-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1984-49-0x0000000000400000-0x0000000000537000-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_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4568	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\\a192849d-9306-4228-a914-ddde9e6721ed\\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe\" --AutoStart"	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.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
15	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4280 set thread context of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 2892 set thread context of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.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_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
1984	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
1984	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4280 wrote to memory of 4420	4280	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	83
PID 4420 wrote to memory of 4568	4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	85
PID 4420 wrote to memory of 4568	4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	85
PID 4420 wrote to memory of 4568	4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	85
PID 4420 wrote to memory of 2892	4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	86
PID 4420 wrote to memory of 2892	4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	86
PID 4420 wrote to memory of 2892	4420	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	86
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89
PID 2892 wrote to memory of 1984	2892	JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4280
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.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:4420
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\a192849d-9306-4228-a914-ddde9e6721ed" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4568
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2892
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1984

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
22346c773de5314b3fb9f0339a5266ba

SHA1
5dc29e06b46e1fa9779fe9fb8a0ce57f30a6e879

SHA256
d1257c961b655e6651ef520d3884c81998e06714dc4e0d295022d9b4538326ab

SHA512
c305f4ae7f96589c27f05838bc726eb541370e08f4903694bbda2263db6e132cfe48a2c106180f84e0c62ca8474f15a6d21dea985636b07995e9c2086ef89869

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

Filesize
170B

MD5
efd2caa954454e9e0ce1eb14c73bf465

SHA1
80ffd54d2349bc2dad30d6c3d14a78a7e079c348

SHA256
5405c9a8d33c45aadc38f56037b7be79134518e6982bce0029de117972ef89a8

SHA512
a3e59249e7b0e920d4e70abe53f7866b436b8e93aacc8be1a4a016d2d8be26af59a87c7b7cb87c2e2bef8be4400382ac3d47fc348e3dd59e9f47a8957ab98e31

Download Submit
C:\Users\Admin\AppData\Local\a192849d-9306-4228-a914-ddde9e6721ed\JaffaCakes118_cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353.exe

Filesize
800KB

MD5
215ef8c9fd78b2413067cafab6c84f40

SHA1
47cbc8b9298d6a43c6699b6ce8325951f0d98a9b

SHA256
cdb86e59ded4e3b41cad8c08f79ebd77a200fde95b0f333f02b74dac44b0b353

SHA512
0b92f976679f49d988cf9755ee0372394ae875eda3f4a1423509f22f1c365be2641cecf7c560d37343fcc222a13a7ed00e8d74b240ded7c6aa6ad951ec22f5fb

Download Submit
memory/1984-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1984-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2892-24-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/2892-19-0x0000000000400000-0x00000000004D2000-memory.dmp

Filesize
840KB

Download
memory/4280-2-0x0000000002240000-0x000000000235B000-memory.dmp

Filesize
1.1MB

Download
memory/4280-1-0x0000000000640000-0x00000000006DC000-memory.dmp

Filesize
624KB

Download
memory/4420-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4420-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4420-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4420-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4420-17-0x0000000000400000-0x0000000000537000-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