djvu | 2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff

Analysis

max time kernel
143s
max time network
146s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29/12/2024, 07:04

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General

Target

JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Size

767KB
MD5

a166eb129533ff066100521c83967fee
SHA1

0aea2d705525c016d06231981dd40615962472b2
SHA256

2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff
SHA512

9b6c86d829a8c717323e410edf47a16d2ad12f73955f439686ccf84294b8824ee6ab225ce9beb68f9b7533cd5dc538da68f616df369a29b8b22f0b23866bf6f1
SSDEEP

12288:qK7oNk9C8phXtqJ0gkcB4dqbuWYtGy/oPkK5d4qurCUbFKACSB9RGvgq:POGC8bBgzB4dqLi3oPBhUb0ACeRwg

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.ghas
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral1/memory/2552-2-0x00000000006C0000-0x00000000007DB000-memory.dmp	family_djvu
behavioral1/memory/2352-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2352-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2352-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2352-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2660-67-0x0000000000400000-0x0000000000537000-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
2776	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\378337a3-ca3e-41d6-a1b7-9127398fe451\\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe\" --AutoStart"	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.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 2552 set thread context of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2872 set thread context of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.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_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
2660	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
2660	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2552 wrote to memory of 2352	2552	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	31
PID 2352 wrote to memory of 2776	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	33
PID 2352 wrote to memory of 2776	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	33
PID 2352 wrote to memory of 2776	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	33
PID 2352 wrote to memory of 2776	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	33
PID 2352 wrote to memory of 2872	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	34
PID 2352 wrote to memory of 2872	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	34
PID 2352 wrote to memory of 2872	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	34
PID 2352 wrote to memory of 2872	2352	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	34
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35
PID 2872 wrote to memory of 2660	2872	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2352
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\378337a3-ca3e-41d6-a1b7-9127398fe451" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2776
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2872
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2660

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
35d2bbfb18908b04a2d05d496277e533

SHA1
4a24f0e1a7c0e82aca74f6d1792be853e3603609

SHA256
880fc5552e9d9f51eb8f1fc02ee1015f5fbeb28e927346cb5d5d31878f8f46cd

SHA512
3a4374909c5210e677a2ee5b7bce53d5eb67bf6fbd44b27a6f9d20619fb3f9c18c11fd8dc04156d958c710d69ebc266cdec5137da6655747429ccbb847c34cc4

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

Filesize
170B

MD5
6c2f3deab4d8d94b49d4da80d7c8d369

SHA1
f3e435ce5632868efbccd0da8b7e317c0748ed6c

SHA256
e929c5b90461c14f3a6faf3ed4bd72b4375ae14c7e941529e74b88fd7163a8f1

SHA512
d1e7d8e1cb970ff92176d9b6dd169db80b2073f5f0e8149fba5037c88b6b915ded3e4b537cdf0e253cf972d45b0a35d5fdb0888d3bdf03ef5e20c61edf709e83

Download Submit
C:\Users\Admin\AppData\Local\378337a3-ca3e-41d6-a1b7-9127398fe451\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Filesize
767KB

MD5
a166eb129533ff066100521c83967fee

SHA1
0aea2d705525c016d06231981dd40615962472b2

SHA256
2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff

SHA512
9b6c86d829a8c717323e410edf47a16d2ad12f73955f439686ccf84294b8824ee6ab225ce9beb68f9b7533cd5dc538da68f616df369a29b8b22f0b23866bf6f1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab170A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2352-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2352-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2552-7-0x0000000000320000-0x00000000003B1000-memory.dmp

Filesize
580KB

Download
memory/2552-2-0x00000000006C0000-0x00000000007DB000-memory.dmp

Filesize
1.1MB

Download
memory/2552-1-0x0000000000320000-0x00000000003B1000-memory.dmp

Filesize
580KB

Download
memory/2552-0-0x0000000000320000-0x00000000003B1000-memory.dmp

Filesize
580KB

Download
memory/2660-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2660-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2872-35-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2872-29-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2872-28-0x0000000000360000-0x00000000003F1000-memory.dmp

Filesize
580KB

Download