djvu | cf1b38106e42989ddffb99e0163787135e7b294c5d5e88e3b47ca1b7cd0d6681

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
behavioral18/memory/1020-1-0x0000000006470000-0x000000000658A000-memory.dmp	family_djvu
behavioral18/memory/1020-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral18/memory/1020-11-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral18/memory/1020-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral18/memory/1020-14-0x0000000006470000-0x000000000658A000-memory.dmp	family_djvu
behavioral18/memory/1020-12-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral18/memory/116-20-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral18/memory/116-23-0x0000000000400000-0x0000000004753000-memory.dmp	family_djvu
behavioral18/memory/116-24-0x0000000000400000-0x0000000004753000-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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	0x000300000001a5a2-209.exe

Executes dropped EXE 1 IoCs

pid	Process
5044	0x000300000001a5a2-209.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4884	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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\66380b61-fd25-47d3-9228-c47f7f3e71fb\\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
24	api.2ip.ua
25	api.2ip.ua
33	api.2ip.ua
76	api.2ip.ua

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4160	1020	WerFault.exe	83
2972	5044	WerFault.exe	115

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
1020	0x000300000001a5a2-209.exe
1020	0x000300000001a5a2-209.exe
116	0x000300000001a5a2-209.exe
116	0x000300000001a5a2-209.exe
5044	0x000300000001a5a2-209.exe
5044	0x000300000001a5a2-209.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1020 wrote to memory of 4884	1020	0x000300000001a5a2-209.exe	95
PID 1020 wrote to memory of 4884	1020	0x000300000001a5a2-209.exe	95
PID 1020 wrote to memory of 4884	1020	0x000300000001a5a2-209.exe	95
PID 1020 wrote to memory of 116	1020	0x000300000001a5a2-209.exe	96
PID 1020 wrote to memory of 116	1020	0x000300000001a5a2-209.exe	96
PID 1020 wrote to memory of 116	1020	0x000300000001a5a2-209.exe	96

C:\Users\Admin\AppData\Local\Temp\0x000300000001a5a2-209.exe
"C:\Users\Admin\AppData\Local\Temp\0x000300000001a5a2-209.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1020
- C:\Windows\SysWOW64\icacls.exe
  icacls "C:\Users\Admin\AppData\Local\66380b61-fd25-47d3-9228-c47f7f3e71fb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
  2⤵
  - Modifies file permissions
  - System Location Discovery: System Language Discovery
  PID:4884
- 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:116
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1020 -s 2060
  2⤵
  - Program crash
  PID:4160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1020 -ip 1020
1⤵
PID:4824

C:\Users\Admin\AppData\Local\66380b61-fd25-47d3-9228-c47f7f3e71fb\0x000300000001a5a2-209.exe
C:\Users\Admin\AppData\Local\66380b61-fd25-47d3-9228-c47f7f3e71fb\0x000300000001a5a2-209.exe --Task
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:5044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 1092
  2⤵
  - Program crash
  PID:2972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5044 -ip 5044
1⤵
PID:1664

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

Query Registry

T1012

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
f9c2585ce4b35f8843269477ffb6d886

SHA1
be2db875c765577a221f6eb446eba1f4787c5004

SHA256
7686c687c7cddcf067503bdf81ec4158ed215156d563f968e626e55fbd130ce7

SHA512
beb511cd0051457d17f11a980cab2e8a9bad6ddab73396f58528b56d377ceea5150047781be828878ea8bedf2cc273b33b7c241343b4da893ef3d57500e5fd7a

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

Filesize
170B

MD5
51cd28b715616b5313cb48f7cd0df978

SHA1
9e3f34172d5a5f6b2b8feb47650eea9333057ae6

SHA256
1274757271ff4496ebcc698f409b7b8e2b785cd9be8e80a61379be48b38909b0

SHA512
9094de63886340e6b523c27553e970abd8e6df0a716ec0b46d477402820ed3f205cff11439a4448fd30107b47c6b1dd39702af5e07f532530bd50b7e7bd794fe

Download Submit
C:\Users\Admin\AppData\Local\66380b61-fd25-47d3-9228-c47f7f3e71fb\0x000300000001a5a2-209.exe

Filesize
842KB

MD5
185749ffbb860d3e5b705b557d819702

SHA1
f09470a934d381cfc4e1504193eb58139061a645

SHA256
1c5319523b316c789c5c29e87675e580a9016b4624f197df889cb942c9a32bfa

SHA512
0bb85d296bdcee1fd50200af1924c73f751b08737256178052f46a8937a1a9be5656b4ea465b97ef798e48a0f600ceb7d2e18feb4026426112642d3b9213cce5

Download Submit
memory/116-24-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/116-23-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/116-20-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/1020-11-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/1020-12-0x0000000000400000-0x0000000004753000-memory.dmp

Filesize
67.3MB

Download
memory/1020-13-0x0000000006380000-0x0000000006411000-memory.dmp

Filesize
580KB

Download
memory/1020-14-0x0000000006470000-0x000000000658A000-memory.dmp

Filesize
1.1MB

Download
memory/1020-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1020-0-0x0000000006380000-0x0000000006411000-memory.dmp

Filesize
580KB

Download
memory/1020-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1020-1-0x0000000006470000-0x000000000658A000-memory.dmp

Filesize
1.1MB

Download