djvu | 7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1

General

Target

JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Size

725KB
MD5

30230946115d6d82a890e9e725deb161
SHA1

f03ee04320db88871b36dc45ed373fb4e43f0312
SHA256

7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1
SHA512

47c416a43938457c71327d25c28d4afd3ec049990b24e54d4a23d2a8aed1a5d5365556d80b24a2a6e56415c4b96d71392884043a9942952ff695e343c2414d75
SSDEEP

12288:hZtJpi3MRBvcV1d1jcjYVXo6/JUFWFg5vF5w5wm8dU2FI1Ee8U:hZ/plno1/c0VXo6/7ghFFVM

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.dmay
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: 0458JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/4640-2-0x00000000022F0000-0x000000000240B000-memory.dmp	family_djvu
behavioral2/memory/3508-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3508-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3508-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3508-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3508-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/372-49-0x0000000000400000-0x0000000000537000-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_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
5100	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\\19d617b4-49bf-4809-9af8-b291452045b3\\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe\" --AutoStart"	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.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 4640 set thread context of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 2160 set thread context of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89

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_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
372	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
372	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 4640 wrote to memory of 3508	4640	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	83
PID 3508 wrote to memory of 5100	3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	85
PID 3508 wrote to memory of 5100	3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	85
PID 3508 wrote to memory of 5100	3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	85
PID 3508 wrote to memory of 2160	3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	86
PID 3508 wrote to memory of 2160	3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	86
PID 3508 wrote to memory of 2160	3508	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	86
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89
PID 2160 wrote to memory of 372	2160	JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4640
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.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:3508
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\19d617b4-49bf-4809-9af8-b291452045b3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:5100
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2160
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:372

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

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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
e26c4e6141664cc37bfc5347e53f873d

SHA1
66546d957fe514d0ed98c9d89aaf61a4f2930a96

SHA256
8d4191fc87709fe06115a33836079f54611e270f59edbaef9ac5bec337b4e698

SHA512
213e2569e38abb46daeb3ae6f8c1cd115759671ef3dd16c08cce430bf2229bfe43f92f7c3de88c95dfae584604313770852454e746557908a86654c2bf2b538c

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

Filesize
170B

MD5
797999f2b2993d9193eca0422e16db47

SHA1
ce161a5e19d052579eb8fc04d16158e184fbff39

SHA256
e6664837c6bc103bad6e620d73cafeba854b20d92f14c6af51e19339383302b4

SHA512
738a73f97b6cf22c4ac1cb4b35866d4a6fb171ee27fab9e7291b7aaa3f8663fd4be7d748aa891a62e2846fb49c26c54021533ea6556677364d4cbe4a28d4362c

Download Submit
C:\Users\Admin\AppData\Local\19d617b4-49bf-4809-9af8-b291452045b3\JaffaCakes118_7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1.exe

Filesize
725KB

MD5
30230946115d6d82a890e9e725deb161

SHA1
f03ee04320db88871b36dc45ed373fb4e43f0312

SHA256
7a54fa6f39ec6b31f16a820c4e8b16af0d74eddea1ec0dc6bbbb97db59f7e6d1

SHA512
47c416a43938457c71327d25c28d4afd3ec049990b24e54d4a23d2a8aed1a5d5365556d80b24a2a6e56415c4b96d71392884043a9942952ff695e343c2414d75

Download Submit
memory/372-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-48-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/372-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2160-23-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/2160-19-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/3508-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3508-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3508-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3508-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3508-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4640-2-0x00000000022F0000-0x000000000240B000-memory.dmp

Filesize
1.1MB

Download
memory/4640-1-0x00000000009C0000-0x0000000000A61000-memory.dmp

Filesize
644KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads