djvu | 225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5

Resubmissions

27-08-2024 20:54

240827-zp92wsshmm 10

27-08-2024 20:49

240827-zmfp9ssgjr 10

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-08-2024 20:54

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General

Target

225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
Size

813KB
MD5

03851cdd1e543a7f09c0e4ade384bfd4
SHA1

342860ec1d18ac3b2cccd35ca2794d1db7c71353
SHA256

225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5
SHA512

4b6ed235558eeeffac123b707d5d9cb1af448c83162e75051459f8f9eb85cfdb9df903460faf22279df5497efab9c747fa8f1588f38312a7a364a363a3e91b38
SSDEEP

12288:R+KI630b+EJrbydbNKDcEi453oh1Nj0DYK636Zstz0pW5CDmyipL+1ea0mw:Rzkb+qHSbIZz5hW6Z2z0pW9+QFmw

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

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

Attributes

extension
.pcqq
offline_id
3pNdLH1399769YerBBKCxHURRAqLhaXsGw3Fbkt1
payload_url
http://asvb.top/files/penelop/updatewin1.exe

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

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

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

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

http://asvb.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-TVrnNufMGq 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: 0296Sirj

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 11 IoCs

resource	yara_rule
behavioral2/memory/1472-2-0x0000000002380000-0x000000000249B000-memory.dmp	family_djvu
behavioral2/memory/1444-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1444-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1444-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1444-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1444-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4212-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4212-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4212-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4088-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware 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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe

Executes dropped EXE 2 IoCs

pid	Process
3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
4088	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\1fbca677-15b4-4d96-8037-15b726555c00\\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe\" --AutoStart"	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.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
22	api.2ip.ua
92	api.2ip.ua
21	api.2ip.ua

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1472 set thread context of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1960 set thread context of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 3068 set thread context of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2212	4212	WerFault.exe	94

System Location Discovery: System Language Discovery 1 TTPs 7 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	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
4088	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
4088	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1472 wrote to memory of 1444	1472	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	88
PID 1444 wrote to memory of 2376	1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	89
PID 1444 wrote to memory of 2376	1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	89
PID 1444 wrote to memory of 2376	1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	89
PID 1444 wrote to memory of 1960	1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	91
PID 1444 wrote to memory of 1960	1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	91
PID 1444 wrote to memory of 1960	1444	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	91
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 1960 wrote to memory of 4212	1960	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	94
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111
PID 3068 wrote to memory of 4088	3068	225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe	111

C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
"C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
  "C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.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:1444
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\1fbca677-15b4-4d96-8037-15b726555c00" /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\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
    "C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1960
  - - C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
      "C:\Users\Admin\AppData\Local\Temp\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4212
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 576
        5⤵
        Program crash
        
        PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4212 -ip 4212
1⤵
PID:872

C:\Users\Admin\AppData\Local\1fbca677-15b4-4d96-8037-15b726555c00\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
C:\Users\Admin\AppData\Local\1fbca677-15b4-4d96-8037-15b726555c00\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe --Task
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Users\Admin\AppData\Local\1fbca677-15b4-4d96-8037-15b726555c00\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe
  C:\Users\Admin\AppData\Local\1fbca677-15b4-4d96-8037-15b726555c00\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe --Task
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4088

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

Filesize
3B

MD5
8a80554c91d9fca8acb82f023de02f11

SHA1
5f36b2ea290645ee34d943220a14b54ee5ea5be5

SHA256
ca3d163bab055381827226140568f3bef7eaac187cebd76878e0b63e9e442356

SHA512
ca4b6defb8adcc010050bc8b1bb8f8092c4928b8a0fba32146abcfb256e4d91672f88ca2cdf6210e754e5b8ac5e23fb023806ccd749ac8b701f79a691f03c87a

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157

Filesize
302B

MD5
5b045add04923ff48febe55c8e372772

SHA1
919ec08e539f4611cae0dd7bd78d338f08508fe7

SHA256
6e827245c328cd41cf5d3ebe040e551da3dfec3b7f1f253cbe5f7edc9e3eebc1

SHA512
631ecc824e926d56962f2fe401390b1adbfa339dbae4ade2b4b8cb6bef62e5d00796892ca9b0e7ddb79864bf3c52eb6a0e44917596df8e2c5dead627d260684f

Download Submit
C:\Users\Admin\AppData\Local\1fbca677-15b4-4d96-8037-15b726555c00\225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5.exe

Filesize
813KB

MD5
03851cdd1e543a7f09c0e4ade384bfd4

SHA1
342860ec1d18ac3b2cccd35ca2794d1db7c71353

SHA256
225e8043b4cbb1f5e64f800dce016c8dffe803bae5c596eb62bfe2cb5dac2de5

SHA512
4b6ed235558eeeffac123b707d5d9cb1af448c83162e75051459f8f9eb85cfdb9df903460faf22279df5497efab9c747fa8f1588f38312a7a364a363a3e91b38

Download Submit
memory/1444-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1444-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1472-2-0x0000000002380000-0x000000000249B000-memory.dmp

Filesize
1.1MB

Download
memory/1472-1-0x00000000022B0000-0x000000000234A000-memory.dmp

Filesize
616KB

Download
memory/1960-17-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/1960-23-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/3068-28-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/3068-31-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/4088-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4088-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4212-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4212-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4212-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download