djvu | 2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293

General

Target

JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Size

786KB
MD5

8947f64e91a8a07faf7f33620d5d02f1
SHA1

21e79ec73c9e728075611da8f4863e1cc8171583
SHA256

2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293
SHA512

0b3a216855971d85936f78756fdd5ac6109e2d76af48c20243223c216707bf8824ef560dafb2501e36d6b5ef6b56da80efd834baf849d6ba370fb6e7294f4427
SSDEEP

12288:9mQx5xkryyHK1Nz/PLMbff0fgzkPMoDhfHRy/ymr54Cb4hrENguwq+kbWxlHjv:9xxGHsUfMfymvl5yKmr5xCI+kbSHL

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/3972-2-0x0000000002280000-0x000000000239B000-memory.dmp	family_djvu
behavioral2/memory/1672-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1672-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4196-51-0x0000000000400000-0x0000000000537000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1660	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\da805e93-2569-4c9a-9bbe-9af58971ad68\\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe\" --AutoStart"	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.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
4	api.2ip.ua
5	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3972 set thread context of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 2180 set thread context of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86

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_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
4196	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
4196	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 3972 wrote to memory of 1672	3972	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	82
PID 1672 wrote to memory of 1660	1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	83
PID 1672 wrote to memory of 1660	1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	83
PID 1672 wrote to memory of 1660	1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	83
PID 1672 wrote to memory of 2180	1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	84
PID 1672 wrote to memory of 2180	1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	84
PID 1672 wrote to memory of 2180	1672	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	84
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86
PID 2180 wrote to memory of 4196	2180	JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.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:1672
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\da805e93-2569-4c9a-9bbe-9af58971ad68" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1660
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2180
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:4196

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
695a75068c5145f1b660d74649ace9c6

SHA1
9dc07bec335ef089d2fda8831c6caf441327454a

SHA256
552edf8f8fa2c2927a851b4697ebd4b5d785647cc1845f82f3dda9982a372436

SHA512
d6654b5cf038e5fb8994bb2754a8d867d2477e36a605fb67bb62ba038fa4d31689b32a1b744a336f159903eadf17d2fd3026bb2b468040f12054124f6b97c17e

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

Filesize
170B

MD5
7bc23a0fdd642301c37b5e0a7f081df3

SHA1
8d1dc18e9a29fcc36ddf32ae4d531070c51be04a

SHA256
00b9cfe0ec832bf6076c91a18f2d6fea8319e1a3b58dc9829eeffa23dd8288ed

SHA512
6c1f13e91df188565e4ff7efce65bb7ebb30c111a21262fadabb0893b56439674ea4293dbab0f32e2891aba7783b597b6c0cf57a00245cd75a5014e709842d25

Download Submit
C:\Users\Admin\AppData\Local\da805e93-2569-4c9a-9bbe-9af58971ad68\JaffaCakes118_2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293.exe

Filesize
786KB

MD5
8947f64e91a8a07faf7f33620d5d02f1

SHA1
21e79ec73c9e728075611da8f4863e1cc8171583

SHA256
2aa92178b31f57a30145675a72f5bd2cca2c2da42714c07218a5e94403b6a293

SHA512
0b3a216855971d85936f78756fdd5ac6109e2d76af48c20243223c216707bf8824ef560dafb2501e36d6b5ef6b56da80efd834baf849d6ba370fb6e7294f4427

Download Submit
memory/1672-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1672-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2180-21-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/2180-25-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/3972-1-0x0000000000690000-0x0000000000724000-memory.dmp

Filesize
592KB

Download
memory/3972-2-0x0000000002280000-0x000000000239B000-memory.dmp

Filesize
1.1MB

Download
memory/4196-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4196-51-0x0000000000400000-0x0000000000537000-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