djvu | 4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5

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

C2

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 18 IoCs

resource	yara_rule
behavioral2/memory/3532-2-0x0000000002210000-0x000000000232B000-memory.dmp	family_djvu
behavioral2/memory/4760-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/464-47-0x0000000000400000-0x0000000000537000-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2652	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\403d63fc-f354-420d-8358-171e37fa8bc6\\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
20	api.2ip.ua
6	api.2ip.ua
7	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3532 set thread context of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3040 set thread context of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87

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	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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
464	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
464	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 3532 wrote to memory of 4760	3532	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	83
PID 4760 wrote to memory of 2652	4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	84
PID 4760 wrote to memory of 2652	4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	84
PID 4760 wrote to memory of 2652	4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	84
PID 4760 wrote to memory of 3040	4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	85
PID 4760 wrote to memory of 3040	4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	85
PID 4760 wrote to memory of 3040	4760	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	85
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87
PID 3040 wrote to memory of 464	3040	JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe	87

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:3532
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.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:4760
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\403d63fc-f354-420d-8358-171e37fa8bc6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2652
- - 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:3040
  - - 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:464

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
0db3250532fdac318cf4a1876e05f4c9

SHA1
ddb967b3b342ebe04c575f46c3cb620accaf2d33

SHA256
6c043c4130d110e3008116c20685943dfd71c8049bf5b9446801bf912a570559

SHA512
aa0aea3be954641c1b43dc73e16c6bb30d3c5e26888df09409fa3f26f9a44487e60dc07708ec81209d591c8a6d1911ce3d2aef0f1d79593aee110748df427d10

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

Filesize
170B

MD5
80c600fb9394e9cabc8622f8892b27a3

SHA1
54d03f6aa8dee05b613175ac42a80026739c285a

SHA256
443817a5fa68173259640b49d95836c3e2f0153f3e6ac45f9e80901de3255734

SHA512
1287742b26ee25db9476466b8898a14929cfaf53d314de89ab3aef74a420ca0852ed081c66651be114416378ab92ae99f6eabfe77528337c5f0de9e8fb7571b2

Download Submit
C:\Users\Admin\AppData\Local\403d63fc-f354-420d-8358-171e37fa8bc6\JaffaCakes118_4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5.exe

Filesize
783KB

MD5
2adedc39f822fa5e267cf3891af3fe2d

SHA1
a2660f71a9f1bdfb42c853bb6c4fc9fd762a67b2

SHA256
4425d282749cc2e38eb9e2d1506578b57277cd83ea7676236984c51b290f0dc5

SHA512
96ed8ceef6864e348f07bd27720434c3520b6f585953a898bde190be0a6e1501ddd2322528fa7542c48d2bf8e63b8e5e8573ccd9028aae0d4fe1c3d1cdf27a54

Download Submit
memory/464-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/464-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3040-23-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/3040-19-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/3532-2-0x0000000002210000-0x000000000232B000-memory.dmp

Filesize
1.1MB

Download
memory/3532-1-0x0000000000670000-0x000000000070C000-memory.dmp

Filesize
624KB

Download
memory/4760-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-17-0x0000000000400000-0x0000000000537000-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