djvu | 27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c

General

Target

JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
Size

762KB
MD5

e7d5705955195b9c7af34f917626b22d
SHA1

3eb012f43bed179ef8c08ac557e07185af2a5575
SHA256

27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c
SHA512

3776afcf0275b5afc0cac44022a9bbe88958ca62902376766ebdbf00b201488d65bcefe5e57a8d4f48128162a086a43b6c8af7af2e71d1d1f17030957d32fd33
SSDEEP

12288:YwB+f6DY6U0XRCHXeoFSTLHKLYQEbke9mxtcTm56xfOuIltWk8Ul67FvjFrfABiR:lB3F29Le9ktc52xtKEcxrf0ARfulA

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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 18 IoCs

resource	yara_rule
behavioral2/memory/1708-2-0x0000000002320000-0x000000000243B000-memory.dmp	family_djvu
behavioral2/memory/4084-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4084-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4084-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4084-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4084-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2408-47-0x0000000000400000-0x0000000000537000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3584	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\61eea86c-f382-4e08-9357-49476c23da45\\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe\" --AutoStart"	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.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
14	api.2ip.ua
15	api.2ip.ua
20	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1708 set thread context of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1888 set thread context of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88

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_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
2408	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
2408	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 1708 wrote to memory of 4084	1708	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	83
PID 4084 wrote to memory of 3584	4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	84
PID 4084 wrote to memory of 3584	4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	84
PID 4084 wrote to memory of 3584	4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	84
PID 4084 wrote to memory of 1888	4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	85
PID 4084 wrote to memory of 1888	4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	85
PID 4084 wrote to memory of 1888	4084	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	85
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88
PID 1888 wrote to memory of 2408	1888	JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.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:4084
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\61eea86c-f382-4e08-9357-49476c23da45" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3584
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2408

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

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
8b6783e81d8449446d6585fc20f9f124

SHA1
7cb4034678725bfefdfc8878d211eab66579b6a8

SHA256
ed233adc6aefd4b62af5e43f529bc58e12b151becfe2eb87d8955809c5412968

SHA512
8bfaa7e45700896e921762d25ea0b5292959e6abc5138bcf8f896e8dbc1ba31aee26a0e90f19cee813576f442db449b8a1fae756fab814fa779285c3f342181e

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

Filesize
170B

MD5
42cae235203c576e535413ca8db78c91

SHA1
1cca81c1fec177ccb6b80cfa032324687c154f60

SHA256
105cbddf075e4261af43db266b4dd6df66591eaf4383b7ca6439220d40fdff3e

SHA512
dedf1abcfaf84c2cfe86b67d6f50edc20859102fdd7741231c2070bea7b26fb03ed93c1454ec8606964624a349b8bda83f8db106c928800f51912ca8b6fb27a1

Download Submit
C:\Users\Admin\AppData\Local\61eea86c-f382-4e08-9357-49476c23da45\JaffaCakes118_27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c.exe

Filesize
762KB

MD5
e7d5705955195b9c7af34f917626b22d

SHA1
3eb012f43bed179ef8c08ac557e07185af2a5575

SHA256
27d3904c81ff8a05357ee95d780a75e64e7e71a9cc90d971ae2e87c51447f19c

SHA512
3776afcf0275b5afc0cac44022a9bbe88958ca62902376766ebdbf00b201488d65bcefe5e57a8d4f48128162a086a43b6c8af7af2e71d1d1f17030957d32fd33

Download Submit
memory/1708-2-0x0000000002320000-0x000000000243B000-memory.dmp

Filesize
1.1MB

Download
memory/1708-1-0x0000000002240000-0x00000000022D5000-memory.dmp

Filesize
596KB

Download
memory/1888-23-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/1888-19-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/2408-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2408-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4084-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4084-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4084-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4084-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4084-17-0x0000000000400000-0x0000000000537000-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