djvu | ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124

General

Target

JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Size

794KB
MD5

6276f3e91fbcc81f925d728811438a88
SHA1

b69eb6865f69b735a114a047aed06338b151be53
SHA256

ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124
SHA512

9aaeb436e53c89dd8580988f54a6a4715d2672bf07e492cfa0946bc8de23bc085e242d5e88d591554a66d907c207cfdb192546aadac950da7916e74762369712
SSDEEP

24576:dFmLh8/c1oDhp6D/ZVyvefO/c6depxm/:dkQt6DnGepxG

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.nnuz
offline_id
vBBkNb2o254Xzi3oCcyyfpBNyU9yOZKLh1HH5Mt1
payload_url
http://zerit.top/dl/build2.exe

http://ugll.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-wYSZeUnrpa 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: 0485JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/3380-2-0x00000000022C0000-0x00000000023DB000-memory.dmp	family_djvu
behavioral2/memory/208-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/208-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/208-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/208-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/208-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4912-39-0x0000000000400000-0x0000000000537000-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_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2548	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\\3f9b7ccd-76a9-47e7-8044-d49c561a6894\\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe\" --AutoStart"	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.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
4	api.2ip.ua
7	api.2ip.ua
19	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3380 set thread context of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 2240 set thread context of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.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_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
4912	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
4912	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 3380 wrote to memory of 208	3380	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	82
PID 208 wrote to memory of 2548	208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	83
PID 208 wrote to memory of 2548	208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	83
PID 208 wrote to memory of 2548	208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	83
PID 208 wrote to memory of 2240	208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	84
PID 208 wrote to memory of 2240	208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	84
PID 208 wrote to memory of 2240	208	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	84
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86
PID 2240 wrote to memory of 4912	2240	JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.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:208
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3f9b7ccd-76a9-47e7-8044-d49c561a6894" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2548
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2240
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4912

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
ffb77c96cfca28ad23df8dc5b3ca6542

SHA1
f73659d8d09cffbc450d5d608c951b8a47ad6271

SHA256
3ba0a6aae7ee88448ae17646b942bd2d2aacc33fcba514bd22836ac5a64ea132

SHA512
e7e16ed3e960c5c6f6c7d4d23674a6c3e2d83170325d82e3720e807b1a30e5ea2fb9bfc1d0977036ddb7406fa25226754844d95d1a253a301f73be7f11a12f6d

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

Filesize
170B

MD5
9e5b046617f70791d8ae7a3390754dc8

SHA1
57a225d57b052f388ce0d13fd43040012a5b61cf

SHA256
a0b9af82f1e1d17ce5101a09264e1aea514543e85489b5604141883dadd891cf

SHA512
5e45444bfe534dd15cb6361dcb8bb5f8d1849572ee207222149d4846500e71e546796b1dd6b8d4fa72cb95f9be9041928a52e18a8990c899449d9e49b0631b8b

Download Submit
C:\Users\Admin\AppData\Local\3f9b7ccd-76a9-47e7-8044-d49c561a6894\JaffaCakes118_ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124.exe

Filesize
794KB

MD5
6276f3e91fbcc81f925d728811438a88

SHA1
b69eb6865f69b735a114a047aed06338b151be53

SHA256
ed76a4c51517102377b040fdc8871b320018674d06a0495b2b07f14f028bc124

SHA512
9aaeb436e53c89dd8580988f54a6a4715d2672bf07e492cfa0946bc8de23bc085e242d5e88d591554a66d907c207cfdb192546aadac950da7916e74762369712

Download Submit
memory/208-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/208-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/208-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/208-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/208-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2240-23-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2240-19-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/3380-1-0x0000000000680000-0x0000000000715000-memory.dmp

Filesize
596KB

Download
memory/3380-2-0x00000000022C0000-0x00000000023DB000-memory.dmp

Filesize
1.1MB

Download
memory/4912-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4912-39-0x0000000000400000-0x0000000000537000-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