djvu | 2432e66cc4270a4783b2034ecc3733d93c4195b7f593dd037f6023cb9c4e90a1

General

Target

5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Size

816KB
MD5

f03ed8fa824e035977f441d622d6a9aa
SHA1

1d71d5e366ff74f1347d53111288cb3e405f6fa8
SHA256

5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be
SHA512

0884334e00e15e35217a4370c0d48b40757def759b09f118a10a550f416ac366b91218ead1957eebec0b861ad558e6c1e51b62a408288d164e02e6b305fca366
SSDEEP

12288:SP5rniagxGSBV8NvGBFlUhg8JiuC2i1n2AOtrcQlUqPofc:In2xMNeFihgqPC2iFfqCc

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vveo
offline_id
rE5LpDv2ftYRXAo7bC18EpzfRMTHSGjgfyIMfZt1
payload_url
http://rgyui.top/dl/build2.exe

http://acacaca.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-QsoSRIeAK6 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: 0533Jhyjd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/1040-2-0x0000000002380000-0x000000000249B000-memory.dmp	family_djvu
behavioral2/memory/4700-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4700-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4700-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4700-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4700-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2688-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2688-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2688-20-0x0000000000400000-0x0000000000537000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
592	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\25beec1b-b0a3-4df1-bc26-51b0d37f8d4d\\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe\" --AutoStart"	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
10	api.2ip.ua
11	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1040 set thread context of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1788 set thread context of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91

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
4644	2688	WerFault.exe	91

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	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 1040 wrote to memory of 4700	1040	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	85
PID 4700 wrote to memory of 592	4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	86
PID 4700 wrote to memory of 592	4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	86
PID 4700 wrote to memory of 592	4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	86
PID 4700 wrote to memory of 1788	4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	88
PID 4700 wrote to memory of 1788	4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	88
PID 4700 wrote to memory of 1788	4700	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	88
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91
PID 1788 wrote to memory of 2688	1788	5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe	91

C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
"C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
  "C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.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:4700
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\25beec1b-b0a3-4df1-bc26-51b0d37f8d4d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:592
- - C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
    "C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1788
  - - C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe
      "C:\Users\Admin\AppData\Local\Temp\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:2688
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 568
        5⤵
        Program crash
        
        PID:4644

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2688 -ip 2688
1⤵
PID:1420

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

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Downloads

C:\Users\Admin\AppData\Local\25beec1b-b0a3-4df1-bc26-51b0d37f8d4d\5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be.exe

Filesize
816KB

MD5
f03ed8fa824e035977f441d622d6a9aa

SHA1
1d71d5e366ff74f1347d53111288cb3e405f6fa8

SHA256
5d5cadb347ffde8f0c51d87e4e3c20425e0ab0303b1bad2629ba5826e8f814be

SHA512
0884334e00e15e35217a4370c0d48b40757def759b09f118a10a550f416ac366b91218ead1957eebec0b861ad558e6c1e51b62a408288d164e02e6b305fca366

Download Submit
memory/1040-2-0x0000000002380000-0x000000000249B000-memory.dmp

Filesize
1.1MB

Download
memory/1040-1-0x0000000002280000-0x000000000231D000-memory.dmp

Filesize
628KB

Download
memory/1788-24-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1788-18-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/2688-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2688-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4700-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4700-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4700-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4700-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4700-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads