djvu | 05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5

General

Target

JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
Size

726KB
MD5

cda5bcf41b89380575ca3fa7ac6c6f50
SHA1

bbf533e3484c22f39149d5fb78abf40df549c586
SHA256

05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5
SHA512

1134cd91e1fb6c0d30c454bf51f204a51070dc5dc8ee3308d76fa2a4e89ad7c988336629d606805ce8c22faf85573da6b25900b1540a074b230afec3ce3b3f61
SSDEEP

12288:MryJUr8RG8mvj61mQobcOxhM8F5pWrvHXXhrBuKS3aKHU1aHk+3EjrXkJVI:MraUrwYjo1Oxe8npWfBrBuKSKK9dEjr0

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.msjd
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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-FT7BNVbXC9 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: 0455JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/4684-2-0x00000000022C0000-0x00000000023DB000-memory.dmp	family_djvu
behavioral2/memory/536-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/536-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/536-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/536-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/536-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3688-49-0x0000000000400000-0x0000000000537000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3032	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e61677f5-ab55-4f43-9a6f-995c7eabec05\\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe\" --AutoStart"	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.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
19	api.2ip.ua
10	api.2ip.ua
11	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4684 set thread context of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4376 set thread context of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.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_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
3688	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
3688	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 4684 wrote to memory of 536	4684	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	82
PID 536 wrote to memory of 3032	536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	83
PID 536 wrote to memory of 3032	536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	83
PID 536 wrote to memory of 3032	536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	83
PID 536 wrote to memory of 4376	536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	84
PID 536 wrote to memory of 4376	536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	84
PID 536 wrote to memory of 4376	536	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	84
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88
PID 4376 wrote to memory of 3688	4376	JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.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:536
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\e61677f5-ab55-4f43-9a6f-995c7eabec05" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3032
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4376
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:3688

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
78979becc0d883e531b7286a5d7e0349

SHA1
6713594294dc02b1d434f73944390eb5996d53b6

SHA256
efd42df136f9029a31ba068ed79948410e5b54b651f91a2d3c67b4baa52ae4ac

SHA512
aeb638b3fe99cc0ae647b21c39433329a458968ef39c822cd8813c622e42c1e8d9613d926081622cca7bddb0bc41c6d8335f91178641e2cec69e17cc10a46674

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

Filesize
170B

MD5
51e8bfddb2aae46660d61286de9ceb94

SHA1
23b67bfdd3b6dbc38d23aea76be0d3e2aa224302

SHA256
066fbcf69e2abd49015fa458545ce872c0bd5069417d34a0eeac8162ad4f4ac3

SHA512
931dab7ee031252731d7c0c89738f6f06be0a2d88650df3e329a7171a03b33987f827c49cc40644f25eb7067b4c2cf1e97043d1d86f4708b370b59db6b1fb701

Download Submit
C:\Users\Admin\AppData\Local\e61677f5-ab55-4f43-9a6f-995c7eabec05\JaffaCakes118_05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5.exe

Filesize
726KB

MD5
cda5bcf41b89380575ca3fa7ac6c6f50

SHA1
bbf533e3484c22f39149d5fb78abf40df549c586

SHA256
05047bfa4fdd01c9b11684aa72e0621f455cbeb7a699d15790051978acaa6cf5

SHA512
1134cd91e1fb6c0d30c454bf51f204a51070dc5dc8ee3308d76fa2a4e89ad7c988336629d606805ce8c22faf85573da6b25900b1540a074b230afec3ce3b3f61

Download Submit
memory/536-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/536-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/536-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/536-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/536-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3688-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4376-19-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/4376-23-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/4684-1-0x0000000000980000-0x0000000000A22000-memory.dmp

Filesize
648KB

Download
memory/4684-2-0x00000000022C0000-0x00000000023DB000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads