djvu | 688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384

General

Target

JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
Size

806KB
MD5

1524f7fd7674d698764d764b96b899f2
SHA1

49c0b2fe746a67bf796cbac5a6f856ddc00d6816
SHA256

688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384
SHA512

4dcf019ed1a0b80e9ecac5a29579678948948a9af796d549b2dedb793e7bb54f1781d30b10794640bbdc214981c5f1927c5187f35113b3513ed1575f5ddfcc9a
SSDEEP

12288:DDv6PuPB2Ua9mUfwfzRHwjlamvMfioAs2DqDfQikj9poWXqjp/jUuTWHhRIwW:/QhafzhRtf7FioAO/QMWH7

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/512-2-0x00000000022D0000-0x00000000023EB000-memory.dmp	family_djvu
behavioral2/memory/2512-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2512-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2512-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2512-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2512-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1492-47-0x0000000000400000-0x0000000000537000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4496	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fdbd58b6-e4a8-4c23-a538-fac39c27b87a\\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe\" --AutoStart"	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.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 512 set thread context of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 4272 set thread context of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.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_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
1492	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
1492	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 512 wrote to memory of 2512	512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	82
PID 2512 wrote to memory of 4496	2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	83
PID 2512 wrote to memory of 4496	2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	83
PID 2512 wrote to memory of 4496	2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	83
PID 2512 wrote to memory of 4272	2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	84
PID 2512 wrote to memory of 4272	2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	84
PID 2512 wrote to memory of 4272	2512	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	84
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86
PID 4272 wrote to memory of 1492	4272	JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:512
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.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:2512
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\fdbd58b6-e4a8-4c23-a538-fac39c27b87a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4496
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4272
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1492

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

Loading Replay Monitor...

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
1334051a613adf3849e098599f26428d

SHA1
c73d14221dbe661babf795b824cb66c566bbfeb7

SHA256
8dd692cbdbe011d3d48b3fda8011f37698010b24c1587c0808ee98eadb2baa64

SHA512
e7d062b243675c668b4e8b70fc43f94d6fcbf503533d579d77978bde2891bec421edfd58fa13ce0d7518a15a28c3217965c61b61cfeb0a3479fa8765d1e0e488

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

Filesize
170B

MD5
3b5a2d34b30ffa75fb1dc75e53e8099f

SHA1
43de26fda5e0388314dd72740e6d5e60cfd77861

SHA256
1835be89ecf2202c4342eb05e3d25324f1f48d3d78ac31122f16a148700ff8b7

SHA512
35dd1f1d979e445bbd5d81956e39e63ce178ac4efabb2e6b54d46f2821eef4ced0ba529ed2e67c7fdbb363a36626caf831ff002f235c2955ca1e86d108fb8118

Download Submit
C:\Users\Admin\AppData\Local\fdbd58b6-e4a8-4c23-a538-fac39c27b87a\JaffaCakes118_688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384.exe

Filesize
806KB

MD5
1524f7fd7674d698764d764b96b899f2

SHA1
49c0b2fe746a67bf796cbac5a6f856ddc00d6816

SHA256
688a084c8c609c21b2d88481ec7650150e47d6905ed2bad624819834c193a384

SHA512
4dcf019ed1a0b80e9ecac5a29579678948948a9af796d549b2dedb793e7bb54f1781d30b10794640bbdc214981c5f1927c5187f35113b3513ed1575f5ddfcc9a

Download Submit
memory/512-1-0x0000000002230000-0x00000000022D0000-memory.dmp

Filesize
640KB

Download
memory/512-2-0x00000000022D0000-0x00000000023EB000-memory.dmp

Filesize
1.1MB

Download
memory/1492-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1492-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2512-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2512-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2512-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2512-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2512-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4272-19-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/4272-23-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads