djvu | cf1b38106e42989ddffb99e0163787135e7b294c5d5e88e3b47ca1b7cd0d6681

Analysis

max time kernel
145s
max time network
135s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-11-2024 08:10

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General

Target

0x000300000001a5a2-209.exe
Size

842KB
MD5

185749ffbb860d3e5b705b557d819702
SHA1

f09470a934d381cfc4e1504193eb58139061a645
SHA256

1c5319523b316c789c5c29e87675e580a9016b4624f197df889cb942c9a32bfa
SHA512

0bb85d296bdcee1fd50200af1924c73f751b08737256178052f46a8937a1a9be5656b4ea465b97ef798e48a0f600ceb7d2e18feb4026426112642d3b9213cce5
SSDEEP

12288:s0mYwwrmPZtPdjyWMzVeB68ebdT7Qs0/9mlv6EHqRjgE7EysTaHbyD8:srEmbdeWMhec84TMb1eHGjgEwys2N

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://qpao.top/nddddhsspen6/get.php

Attributes

extension
.lisp
offline_id
OERd2J7H77Gx6pSuT1wDtZ44ScPhj765hrrFkKt1
payload_url
http://qpao.top/files/penelop/updatewin1.exe

http://qpao.top/files/penelop/updatewin2.exe

http://qpao.top/files/penelop/updatewin.exe

http://qpao.top/files/penelop/3.exe

http://qpao.top/files/penelop/4.exe

http://qpao.top/files/penelop/5.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-jydQMZP2Ie 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: 0267Orjk

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral17/memory/1732-1-0x0000000006000000-0x000000000611A000-memory.dmp	family_djvu
behavioral17/memory/1732-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral17/memory/1732-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral17/memory/1732-20-0x0000000006000000-0x000000000611A000-memory.dmp	family_djvu
behavioral17/memory/1732-18-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral17/memory/2752-33-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral17/memory/2752-35-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral17/memory/2752-37-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral17/memory/1576-61-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

Executes dropped EXE 1 IoCs

pid	Process
1576	0x000300000001a5a2-209.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2908	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0ee46aa1-098c-48f9-807a-00444d135516\\0x000300000001a5a2-209.exe\" --AutoStart"	0x000300000001a5a2-209.exe

Looks up external IP address via web service 4 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
9	api.2ip.ua
23	api.2ip.ua

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 4 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	0x000300000001a5a2-209.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0x000300000001a5a2-209.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0x000300000001a5a2-209.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1732	0x000300000001a5a2-209.exe
1732	0x000300000001a5a2-209.exe
2752	0x000300000001a5a2-209.exe
2752	0x000300000001a5a2-209.exe
1576	0x000300000001a5a2-209.exe
1576	0x000300000001a5a2-209.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2908	1732	0x000300000001a5a2-209.exe	31
PID 1732 wrote to memory of 2908	1732	0x000300000001a5a2-209.exe	31
PID 1732 wrote to memory of 2908	1732	0x000300000001a5a2-209.exe	31
PID 1732 wrote to memory of 2908	1732	0x000300000001a5a2-209.exe	31
PID 1732 wrote to memory of 2752	1732	0x000300000001a5a2-209.exe	32
PID 1732 wrote to memory of 2752	1732	0x000300000001a5a2-209.exe	32
PID 1732 wrote to memory of 2752	1732	0x000300000001a5a2-209.exe	32
PID 1732 wrote to memory of 2752	1732	0x000300000001a5a2-209.exe	32
PID 1536 wrote to memory of 1576	1536	taskeng.exe	39
PID 1536 wrote to memory of 1576	1536	taskeng.exe	39
PID 1536 wrote to memory of 1576	1536	taskeng.exe	39
PID 1536 wrote to memory of 1576	1536	taskeng.exe	39

C:\Users\Admin\AppData\Local\Temp\0x000300000001a5a2-209.exe
"C:\Users\Admin\AppData\Local\Temp\0x000300000001a5a2-209.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\0ee46aa1-098c-48f9-807a-00444d135516" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:2908
- C:\Users\Admin\AppData\Local\Temp\0x000300000001a5a2-209.exe
  "C:\Users\Admin\AppData\Local\Temp\0x000300000001a5a2-209.exe" --Admin IsNotAutoStart IsNotTask
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2752

C:\Windows\system32\taskeng.exe
taskeng.exe {6C3F9A24-0CD7-4849-B589-3D1A9557D741} S-1-5-21-3533259084-2542256011-65585152-1000:XPAJOTIY\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Users\Admin\AppData\Local\0ee46aa1-098c-48f9-807a-00444d135516\0x000300000001a5a2-209.exe
  C:\Users\Admin\AppData\Local\0ee46aa1-098c-48f9-807a-00444d135516\0x000300000001a5a2-209.exe --Task
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
8b5ba0f4bb737796cd35377e9f15c63a

SHA1
562d375e0548877ea1ef04ce29264ee8f088e024

SHA256
cd92ba23e98a3413a02125f5401546c6180d2fa6a6e599ea2b26ad4d17212f45

SHA512
e16f6a0133075bc1478f7992089cdc170440fb5d9980447e5ea51ba4835ea7ce5a58a50b6eead50c59b6cae51226cf3b9c36f5926f753cf7007409dae2291f71

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

Filesize
170B

MD5
b1338f7ea1b1320a7b1e3f20b98ec4ee

SHA1
ea6b92683aba9e81bdae015cdf4da7006035d8c7

SHA256
d085c0233d6ec583de0da7a14e58539794685c447f41c31619b5f1bf65f0ebe6

SHA512
97633e798575ae4580c333cc8ed4b1274fd573e30e7ec5261a8dcbc9db2e6e202ac64686af1615987379af78c83947d2adeb10eaab2bb4ccb936e97db4e30c53

Download Submit
C:\Users\Admin\AppData\Local\0ee46aa1-098c-48f9-807a-00444d135516\0x000300000001a5a2-209.exe

Filesize
842KB

MD5
185749ffbb860d3e5b705b557d819702

SHA1
f09470a934d381cfc4e1504193eb58139061a645

SHA256
1c5319523b316c789c5c29e87675e580a9016b4624f197df889cb942c9a32bfa

SHA512
0bb85d296bdcee1fd50200af1924c73f751b08737256178052f46a8937a1a9be5656b4ea465b97ef798e48a0f600ceb7d2e18feb4026426112642d3b9213cce5

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabB107.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar93D8.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1576-61-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/1732-19-0x0000000000340000-0x00000000003D1000-memory.dmp

Filesize
580KB

Download
memory/1732-18-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/1732-20-0x0000000006000000-0x000000000611A000-memory.dmp

Filesize
1.1MB

Download
memory/1732-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1732-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1732-1-0x0000000006000000-0x000000000611A000-memory.dmp

Filesize
1.1MB

Download
memory/1732-0-0x0000000000340000-0x00000000003D1000-memory.dmp

Filesize
580KB

Download
memory/2752-33-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/2752-35-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/2752-37-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download