djvu | cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0

General

Target

JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Size

762KB
MD5

510b2f1def4dbff27c13829bc8985473
SHA1

f8428ee9d3a5a42cd0fef980691544b97518290c
SHA256

cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0
SHA512

443caeb8556bda4cbd68db231e81cc0ce169f4d6e28cf1f9fcb7d08e996c697f5d7cb658fdddde1c138c9f5558300c3432360c9d8e492888af93c5a6745c5fd2
SSDEEP

12288:8GBat53cRxg8M6xd2cfBDnUsYWcpuWVHeuuMoydDJukl+nNjh+63jVX567F6G08q:8yaYRxgF6TZTYWcpuQk1yypnhhhjVX5T

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.dwqs
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: 0450Jbdio

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/3588-2-0x0000000002220000-0x000000000233B000-memory.dmp	family_djvu
behavioral2/memory/1700-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1700-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4724-49-0x0000000000400000-0x0000000000537000-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_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4100	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\\50dbc3cb-e042-4b31-b577-2c4b20ffb75f\\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe\" --AutoStart"	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.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
10	api.2ip.ua
11	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3588 set thread context of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3412 set thread context of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.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_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
4724	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
4724	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 3588 wrote to memory of 1700	3588	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	83
PID 1700 wrote to memory of 4100	1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	84
PID 1700 wrote to memory of 4100	1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	84
PID 1700 wrote to memory of 4100	1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	84
PID 1700 wrote to memory of 3412	1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	85
PID 1700 wrote to memory of 3412	1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	85
PID 1700 wrote to memory of 3412	1700	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	85
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88
PID 3412 wrote to memory of 4724	3412	JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.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:1700
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\50dbc3cb-e042-4b31-b577-2c4b20ffb75f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4100
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3412
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4724

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
c43163ffab113d7a31d7c82c1fc1462f

SHA1
3223a34d07698449b3e9afa154c65481be9ec6bd

SHA256
342151598e0d5c845f970c58750a45bf34ec91c9006e266cefdb2ccf21227fd8

SHA512
0d395a44995e31ca3fcde7d290768ef1150dcc8ccf0c8c684f48b912919a11a37ef835f5ccc7f14f5007686a62604484eca18f55736e87fad05b089f22f00480

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

Filesize
170B

MD5
594c05a4963ac06bb0709fa1f42cc73e

SHA1
bf726c100e728e1c882dc2e454e02deacc700420

SHA256
ae85daa5c81716d5a8fd7c747b4c296dc63a5087e4d98cd3d302fbcddef26968

SHA512
e028271a1c5c5250e9a416f7c04872bfcaedb4256255b9476e93377b1be950c8b24e6cdafdc78654dec9919b3296f264b4fded1a0a76edec661d840e45b04be7

Download Submit
C:\Users\Admin\AppData\Local\50dbc3cb-e042-4b31-b577-2c4b20ffb75f\JaffaCakes118_cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0.exe

Filesize
762KB

MD5
510b2f1def4dbff27c13829bc8985473

SHA1
f8428ee9d3a5a42cd0fef980691544b97518290c

SHA256
cae16dad7b98d55ced9b5e22bb8b83abb92be26df27a577cc57d4b74ae010ef0

SHA512
443caeb8556bda4cbd68db231e81cc0ce169f4d6e28cf1f9fcb7d08e996c697f5d7cb658fdddde1c138c9f5558300c3432360c9d8e492888af93c5a6745c5fd2

Download Submit
memory/1700-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1700-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3412-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3412-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3588-1-0x0000000002180000-0x0000000002216000-memory.dmp

Filesize
600KB

Download
memory/3588-2-0x0000000002220000-0x000000000233B000-memory.dmp

Filesize
1.1MB

Download
memory/4724-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4724-49-0x0000000000400000-0x0000000000537000-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