djvu | bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460

Analysis

max time kernel
147s
max time network
136s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 00:18

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General

Target

JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Size

824KB
MD5

11613d9f4b4a75261f549e4fe8a8747d
SHA1

e2e1fbc42d443f5e53831ef8cc0c8b86aeca83b7
SHA256

bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460
SHA512

644839f05ac87e304fa44647079fc600f591ac9d9692b2922b0e62e20bf75dc5e2f729cd0b24ad8591f49f417ea23c2a3f85fe895cdd39ca3f7e1ced0a274521
SSDEEP

12288:HYrxLMQdvssOc63QLNYAqFUnXVwHnh55HMP4pl1DW1Bo:HYrmQZEc6gLa6wHh5hE4pLDSB

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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 15 IoCs

resource	yara_rule
behavioral1/memory/300-2-0x0000000000650000-0x000000000076B000-memory.dmp	family_djvu
behavioral1/memory/2104-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2104-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2856-67-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2784	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2671b77c-510c-4708-98e2-9885defd8737\\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe\" --AutoStart"	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.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
5	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 300 set thread context of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 2732 set thread context of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35

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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
2856	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
2856	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 300 wrote to memory of 2104	300	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	30
PID 2104 wrote to memory of 2784	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	33
PID 2104 wrote to memory of 2784	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	33
PID 2104 wrote to memory of 2784	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	33
PID 2104 wrote to memory of 2784	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	33
PID 2104 wrote to memory of 2732	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	34
PID 2104 wrote to memory of 2732	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	34
PID 2104 wrote to memory of 2732	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	34
PID 2104 wrote to memory of 2732	2104	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	34
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35
PID 2732 wrote to memory of 2856	2732	JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:300
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\2671b77c-510c-4708-98e2-9885defd8737" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2784
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2732
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
51328a4b2567bcf48094babfa89039ef

SHA1
7d9a7507607612cb1416a37a0d472d4de94b7dd8

SHA256
ac019c3bb1886183b5a256ccfc3bcc68fc749d65a9a575266f5d278d624e8236

SHA512
7da569175c39e0a5faf2f78470b675ab919e552405ff3bd7b8c524718f862f454e84da2e8deae07a14db7525d343e26e0f881c11222dd171a22fbd481e3ba6d4

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

Filesize
170B

MD5
8d82d3d62af52ae05bf546686cfadf2c

SHA1
7f88a1cd5b90c67630cdac0e60a6e3cc12e2f512

SHA256
1518a209ae0536ec1783a8b9bb1e15e1a97207843fef19273309ef88be6db068

SHA512
96b42595239c9cef243592edd3792fa58bd8d5d078c94b4d66af0e9a700aa23387269027b418badbbc42737b4a7a85f26f9ddbce016a90c5fec8ccc655bd70e6

Download Submit
C:\Users\Admin\AppData\Local\2671b77c-510c-4708-98e2-9885defd8737\JaffaCakes118_bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460.exe

Filesize
824KB

MD5
11613d9f4b4a75261f549e4fe8a8747d

SHA1
e2e1fbc42d443f5e53831ef8cc0c8b86aeca83b7

SHA256
bbf64b01d05e912423cee75d3bf407eaa035ee28b29437df2f36fa5fba650460

SHA512
644839f05ac87e304fa44647079fc600f591ac9d9692b2922b0e62e20bf75dc5e2f729cd0b24ad8591f49f417ea23c2a3f85fe895cdd39ca3f7e1ced0a274521

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE14A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/300-7-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/300-0-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/300-2-0x0000000000650000-0x000000000076B000-memory.dmp

Filesize
1.1MB

Download
memory/300-1-0x00000000002A0000-0x0000000000332000-memory.dmp

Filesize
584KB

Download
memory/2104-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2104-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2732-28-0x00000000002D0000-0x0000000000362000-memory.dmp

Filesize
584KB

Download
memory/2732-33-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2732-29-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2856-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2856-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download