djvu | 13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192

General

Target

JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
Size

761KB
MD5

ce757c1a99b7f11b86afd2eec2495629
SHA1

09cc7b1975e40f2201fdad2b63e84662f8d7ee67
SHA256

13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192
SHA512

abf4e9a6ac1ca6b44e0b0112cf11c41a95025c0d8202f5939a2137c52d73c37c2dc40d877d5274d7ae154dc3dbf99497401a16fb605d9ec67a853fd319a63079
SSDEEP

12288:HWxvYkG6LkmAeby675E3bGeeFbYzAenZTWRnDiTDUTTuWI1t4PUewAXPBmggF:25Gt5/930qAenZTWROUTTud9Gjg

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/4484-2-0x0000000002220000-0x000000000233B000-memory.dmp	family_djvu
behavioral2/memory/2428-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2428-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2428-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2428-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2428-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-49-0x0000000000400000-0x0000000000537000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2376	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\\3997fc7f-3c89-423f-9eba-2a67ec30f664\\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe\" --AutoStart"	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.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
3	api.2ip.ua
5	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4484 set thread context of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4692 set thread context of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.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_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
2784	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
2784	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 4484 wrote to memory of 2428	4484	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	83
PID 2428 wrote to memory of 2376	2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	84
PID 2428 wrote to memory of 2376	2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	84
PID 2428 wrote to memory of 2376	2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	84
PID 2428 wrote to memory of 4692	2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	85
PID 2428 wrote to memory of 4692	2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	85
PID 2428 wrote to memory of 4692	2428	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	85
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87
PID 4692 wrote to memory of 2784	4692	JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4484
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.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:2428
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3997fc7f-3c89-423f-9eba-2a67ec30f664" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2376
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4692
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2784

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
34dc6965a7c12c8e8893d001739cbabc

SHA1
e33efcf5ae0a44fd1f9708f89e49ed444d615986

SHA256
6ab08da311442dfadfbf3674857543fc2fa6fa0b5182045fe687b196ded3febf

SHA512
40570f969a2fcfb967ab5e051a5e19324fbeb4aabea78d1fd26b43e3fd501b162cf70652ccd424a0fb811c4905b3de9958e13b739fedd1c9321e9534af6c85af

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

Filesize
170B

MD5
b05a01d423a6987631be6c852742cfc9

SHA1
56e89d9814c4c2201a6ff82cb0842e4231d0a750

SHA256
41810a69fc6f4fc8afd3fa4d9044d2d08c32a3fe858f03347cb9b36f1dae2e8c

SHA512
0aa8d45316634e97006f779850df7b3544fba71db36b586f74122e83f4ebf87ffbd4df638712693ddefc123d2b3e677c0a269d7bcad2115ac898f64b4b640243

Download Submit
C:\Users\Admin\AppData\Local\3997fc7f-3c89-423f-9eba-2a67ec30f664\JaffaCakes118_13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192.exe

Filesize
761KB

MD5
ce757c1a99b7f11b86afd2eec2495629

SHA1
09cc7b1975e40f2201fdad2b63e84662f8d7ee67

SHA256
13d3e3eb844a3ede798768cdfef32cb2ad3b9a850cf1b7c431c260fe44bea192

SHA512
abf4e9a6ac1ca6b44e0b0112cf11c41a95025c0d8202f5939a2137c52d73c37c2dc40d877d5274d7ae154dc3dbf99497401a16fb605d9ec67a853fd319a63079

Download Submit
memory/2428-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2428-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2428-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2428-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2428-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2784-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4484-2-0x0000000002220000-0x000000000233B000-memory.dmp

Filesize
1.1MB

Download
memory/4484-1-0x00000000009E0000-0x0000000000A7F000-memory.dmp

Filesize
636KB

Download
memory/4692-19-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/4692-23-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads