djvu | f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8

Analysis

max time kernel
140s
max time network
134s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/12/2024, 21:37

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
Size

847KB
MD5

1ef5d68fbad4354fd8314d3a6e209ee5
SHA1

f6c0a9281bfe0a528e2059e1330d0f690276279c
SHA256

f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8
SHA512

6eb0c85ca1d5b7fb32a3dd963dd7aaa5c8a23b8471f98f48e76ac3866f4c7b9eb69b26fd69290831ed13530596ff47e39615500b37726adbc74e93a6487d16ed
SSDEEP

24576:Nm3sShZV2UMDg5ydwfGe1KYiDgMe0P6DKk3Eh:43jZBMM5ydwl19z0yD7U

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.ifla
offline_id
e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1
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-2w6I3WpXEh 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: 0478JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 14 IoCs

resource	yara_rule
behavioral1/memory/2124-2-0x0000000004530000-0x000000000464B000-memory.dmp	family_djvu
behavioral1/memory/2120-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2120-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2120-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2120-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-43-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2928-53-0x0000000000400000-0x0000000000537000-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
2988	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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\aff44c24-21dd-490b-a0da-23888e890b9d\\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe\" --AutoStart"	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.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 2124 set thread context of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2732 set thread context of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.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	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
2928	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
2928	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2124 wrote to memory of 2120	2124	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	30
PID 2120 wrote to memory of 2988	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	33
PID 2120 wrote to memory of 2988	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	33
PID 2120 wrote to memory of 2988	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	33
PID 2120 wrote to memory of 2988	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	33
PID 2120 wrote to memory of 2732	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	34
PID 2120 wrote to memory of 2732	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	34
PID 2120 wrote to memory of 2732	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	34
PID 2120 wrote to memory of 2732	2120	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	34
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35
PID 2732 wrote to memory of 2928	2732	JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2124
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\aff44c24-21dd-490b-a0da-23888e890b9d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2988
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.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_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2928

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

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
ef8fbd2a534c54e564286569551c46bb

SHA1
b18c0bf03d66447c623b0f81d2613b184eb7bd74

SHA256
720cc66c053f7e3305f0b91fec8c336a0763fdc7056409c98eb1991562370ae7

SHA512
1d47c254c77599a8836877865ccce21ebb1df09e9a33b6d1cd979e4b524afd8a9b79b400dd9c1031cc07045eb1e19552c49e6b7a2a2d614f480c2ddebdb458cf

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

Filesize
170B

MD5
b07ea6196e0eea730148bdb1eda0205e

SHA1
85c7bc66e3ba314bbf22b42d84e89a242e8586b5

SHA256
be3ee6c4a3003ac3f976fb219d31ee074fa8239959def2860b3cd059e07642e2

SHA512
c0892a6775bb59f44fe61a4691dc4b40e2498c35057d6dc3e863868e05ac81eb52fafb99e271c2b97ef89dc51c26955188891a288cf25db156eeb0e18bcd5711

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabE456.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\aff44c24-21dd-490b-a0da-23888e890b9d\JaffaCakes118_f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8.exe

Filesize
847KB

MD5
1ef5d68fbad4354fd8314d3a6e209ee5

SHA1
f6c0a9281bfe0a528e2059e1330d0f690276279c

SHA256
f2b73c3aae1ab811911dfdc39244d0df404f2ab047f133d523c966045611bbb8

SHA512
6eb0c85ca1d5b7fb32a3dd963dd7aaa5c8a23b8471f98f48e76ac3866f4c7b9eb69b26fd69290831ed13530596ff47e39615500b37726adbc74e93a6487d16ed

Download Submit
memory/2120-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2120-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2120-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2120-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2120-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2124-1-0x00000000002E0000-0x0000000000372000-memory.dmp

Filesize
584KB

Download
memory/2124-0-0x00000000002E0000-0x0000000000372000-memory.dmp

Filesize
584KB

Download
memory/2124-6-0x00000000002E0000-0x0000000000372000-memory.dmp

Filesize
584KB

Download
memory/2124-2-0x0000000004530000-0x000000000464B000-memory.dmp

Filesize
1.1MB

Download
memory/2732-28-0x0000000002C00000-0x0000000002C92000-memory.dmp

Filesize
584KB

Download
memory/2928-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-43-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2928-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download