djvu | 4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5

Analysis

max time kernel
146s
max time network
139s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/12/2024, 11:39

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General

Target

JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
Size

783KB
MD5

2adedc39f822fa5e267cf3891af3fe2d
SHA1

a2660f71a9f1bdfb42c853bb6c4fc9fd762a67b2
SHA256

4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5
SHA512

96ed8ceef6864e348f07bd27720434c3520b6f585953a898bde190be0a6e1501ddd2322528fa7542c48d2bf8e63b8e5e8573ccd9028aae0d4fe1c3d1cdf27a54
SSDEEP

12288:+RVoq1sBzVgxeW7RjsykaADcjxg13WKlHs8XByGFacVz//2rcI9najt2HIr1sO6z:WX2z0e2jADI8b+8RVzUcIS2HIWvp

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/2328-2-0x00000000004F0000-0x000000000060B000-memory.dmp	family_djvu
behavioral1/memory/2616-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2616-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-63-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-65-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-66-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3052-67-0x0000000000400000-0x0000000000537000-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
472	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\\c388e415-82bc-461e-acb5-7b82243f3ad0\\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe\" --AutoStart"	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.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
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2328 set thread context of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2876 set thread context of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33

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_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
3052	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
3052	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2328 wrote to memory of 2616	2328	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	30
PID 2616 wrote to memory of 472	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	31
PID 2616 wrote to memory of 472	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	31
PID 2616 wrote to memory of 472	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	31
PID 2616 wrote to memory of 472	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	31
PID 2616 wrote to memory of 2876	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	32
PID 2616 wrote to memory of 2876	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	32
PID 2616 wrote to memory of 2876	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	32
PID 2616 wrote to memory of 2876	2616	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	32
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33
PID 2876 wrote to memory of 3052	2876	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2616
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\c388e415-82bc-461e-acb5-7b82243f3ad0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:472
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2876
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3052

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
7c97fd99763218177802908a58c56f9f

SHA1
64e6fd32dca24a89e053d5e978263a863f1bb7dc

SHA256
a70e7e9283e0165e5eec64a5ee78a14b157c2544053ca39c0b7e3a9f0fbdb103

SHA512
628f043a8c1aeb0d4b136185a57b6c8d34eaf43b6dc7951de373c261dcb58515d52974695074d41153efe46621d6bb28da95434a6a71ec37366820f2d1bbfe9f

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

Filesize
170B

MD5
f642a9107a0d2f0ea3493f36b01d02df

SHA1
1b0cb3dc51124ab5949c737a80ff2c2c32d0b688

SHA256
c01dabfe2ff148cbb2dcae6f14723191b0adb6e52887883ad3c05a64d5e2c4a7

SHA512
c4894e9e5da858c8f5656fd794c2bd0a53467c86900d0e26398b0a43ed37afd37edd6b22f5c4c86b7f2c980302f218696f101689460cb1f0b9cefba44d4e9c60

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab129.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\c388e415-82bc-461e-acb5-7b82243f3ad0\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

Filesize
783KB

MD5
2adedc39f822fa5e267cf3891af3fe2d

SHA1
a2660f71a9f1bdfb42c853bb6c4fc9fd762a67b2

SHA256
4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5

SHA512
96ed8ceef6864e348f07bd27720434c3520b6f585953a898bde190be0a6e1501ddd2322528fa7542c48d2bf8e63b8e5e8573ccd9028aae0d4fe1c3d1cdf27a54

Download Submit
memory/2328-0-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2328-6-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2328-2-0x00000000004F0000-0x000000000060B000-memory.dmp

Filesize
1.1MB

Download
memory/2328-1-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2616-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-9-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2616-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2876-28-0x0000000000220000-0x00000000002B1000-memory.dmp

Filesize
580KB

Download
memory/2876-29-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/2876-34-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/3052-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-63-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-65-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-66-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3052-67-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download