djvu | 4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895

General

Target

JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
Size

838KB
MD5

0c57d89bf577598602a4ec0bbe4c0e9f
SHA1

344f99afb3c75a636fb49896fd8d3276ddd10f53
SHA256

4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895
SHA512

c96479ca924628f36373a730e83d9526a6e87668d17b9ec869f58cae913a03109111e55def952528d83f9be3691659323c9a4e23b46a9c057b7cce21173d358e
SSDEEP

24576:r8vlARmAIAHZtVbS7KodJUeNd8ymytfAPaKB:ov+RmAIAHnV+NdgQ

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/4924-2-0x0000000002190000-0x00000000022AB000-memory.dmp	family_djvu
behavioral2/memory/4428-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5016-49-0x0000000000400000-0x0000000000537000-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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4912	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\393dd37b-6ca3-4757-ba03-2fabb3ce43a9\\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe\" --AutoStart"	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.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
19	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4924 set thread context of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4764 set thread context of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88

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_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
5016	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
5016	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4924 wrote to memory of 4428	4924	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	83
PID 4428 wrote to memory of 4912	4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	84
PID 4428 wrote to memory of 4912	4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	84
PID 4428 wrote to memory of 4912	4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	84
PID 4428 wrote to memory of 4764	4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	86
PID 4428 wrote to memory of 4764	4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	86
PID 4428 wrote to memory of 4764	4428	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	86
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88
PID 4764 wrote to memory of 5016	4764	JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4924
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.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:4428
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\393dd37b-6ca3-4757-ba03-2fabb3ce43a9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4912
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4764
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:5016

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
a34ee3c6b7be4fb8ffbb1f7f5d2d2807

SHA1
c04a058a037c8ae46daca9e21ede07d9133f55ca

SHA256
5b33283bdf3b826aa4768171c137a12fc4a4a6093b1789b3913071b039252d0c

SHA512
26c11f24165636dfc1edb44e6edbcbdc72dec3666f7a4a646f089590c0382445d81bfb02f7038368c9e6122e7ca8e67aaec2ce7a4ec8f3e79fb14b5af30daa11

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

Filesize
170B

MD5
1f314965e3c4cf751f631d68ec206a9d

SHA1
9631fb377198bc8ee26f87934ce0727dec63cda7

SHA256
327951f590013ecbbefa858d702a1931d2829e1f2a974c5a9a719f7fab074e78

SHA512
dd7f6dee1e3e6b5a442984c8b5a43e04ef1ea9cb09e63a97d7b8e9f80c23f99dc22cdc52e7c94577aa4e4120eaff80bf72deaf37d66faaab1078a90b7bcdbcb6

Download Submit
C:\Users\Admin\AppData\Local\393dd37b-6ca3-4757-ba03-2fabb3ce43a9\JaffaCakes118_4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895.exe

Filesize
838KB

MD5
0c57d89bf577598602a4ec0bbe4c0e9f

SHA1
344f99afb3c75a636fb49896fd8d3276ddd10f53

SHA256
4f6d6341563673231a3ba83b0b072c299715d03bc1c4e0f551deaf3d7fbed895

SHA512
c96479ca924628f36373a730e83d9526a6e87668d17b9ec869f58cae913a03109111e55def952528d83f9be3691659323c9a4e23b46a9c057b7cce21173d358e

Download Submit
memory/4428-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4428-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4428-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4428-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4428-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4764-19-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/4764-23-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/4924-1-0x0000000000940000-0x00000000009DC000-memory.dmp

Filesize
624KB

Download
memory/4924-2-0x0000000002190000-0x00000000022AB000-memory.dmp

Filesize
1.1MB

Download
memory/5016-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5016-49-0x0000000000400000-0x0000000000537000-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