djvu | 500ccbcd1562c90f659b25d9998198fa89026e352ff0ceed736742ae3d36cede

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 04:01

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General

Target
sab666.exe
Size 725KB
Sample240907-elmf7stenj
SHA256 500ccbcd1562c90f659b25d9998198fa89026e352ff0ceed736742ae3d36cede
MD5 049819fc619411de8764e0356c68c8b1
SHA1 8f774101357930a99e4e7edb40724d338e23842b
SHA512 0d97fa952e6d7efe474010e69fd0db93c200b434092ecba30c2b1b169e24d00613f825ebc21717c38dd713a352fdd3a32e485cea59c48892e7ccfd28790c5feb
SSDEEP 12288:8vBvH0CP2jc1i+OxmvqDLHODkGRNxS0wFhqUVcG5NAzRdtXUA1u:8vBv0W+cQ+OxiMCDkQNs096cGfmR8
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://spaceris.com/test1/get.php

Attributes

extension
.poqw
offline_id
ZMk7348t4yGVy3t2uxofhOwYXOGjluI9PiRO8dt1
payload_url
http://uaery.top/dl/build2.exe

http://spaceris.com/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-GTrvfBi8hs 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: 0632JOsie

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral2/memory/4360-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp	family_djvu
behavioral2/memory/3000-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3000-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3000-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3000-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3000-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-48-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2784-50-0x0000000000400000-0x0000000000537000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	sab666.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1088	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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\934ffee2-6726-455e-b8f3-91a3d14e9a6d\\sab666.exe\" --AutoStart"	sab666.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 4360 set thread context of 3000	4360	sab666.exe	89
PID 820 set thread context of 2784	820	sab666.exe	96

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	sab666.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sab666.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sab666.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sab666.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3000	sab666.exe
3000	sab666.exe
2784	sab666.exe
2784	sab666.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 4360 wrote to memory of 3000	4360	sab666.exe	89
PID 3000 wrote to memory of 1088	3000	sab666.exe	92
PID 3000 wrote to memory of 1088	3000	sab666.exe	92
PID 3000 wrote to memory of 1088	3000	sab666.exe	92
PID 3000 wrote to memory of 820	3000	sab666.exe	93
PID 3000 wrote to memory of 820	3000	sab666.exe	93
PID 3000 wrote to memory of 820	3000	sab666.exe	93
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96
PID 820 wrote to memory of 2784	820	sab666.exe	96

C:\Users\Admin\AppData\Local\Temp\sab666.exe
"C:\Users\Admin\AppData\Local\Temp\sab666.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Users\Admin\AppData\Local\Temp\sab666.exe
  "C:\Users\Admin\AppData\Local\Temp\sab666.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:3000
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\934ffee2-6726-455e-b8f3-91a3d14e9a6d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1088
- - C:\Users\Admin\AppData\Local\Temp\sab666.exe
    "C:\Users\Admin\AppData\Local\Temp\sab666.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:820
  - - C:\Users\Admin\AppData\Local\Temp\sab666.exe
      "C:\Users\Admin\AppData\Local\Temp\sab666.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2784

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

8B2B9A00839EED1DFDCCC3BFC2F5DF12

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Size 1KB
SHA256 33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f
MD5 7fb5fa1534dcf77f2125b2403b30a0ee
SHA1 365d96812a69ac0a4611ea4b70a3f306576cc3ea
SHA512 a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e
MD5 SHA1 SHA512

Submit Download

B46811C17859FFB409CF0E904A4AA8F8

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
Size 436B
SHA256 f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
MD5 971c514f84bba0785f80aa1c23edfd79
SHA1 732acea710a87530c6b08ecdf32a110d254a54c8
SHA512 43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
MD5 SHA1 SHA512

Submit Download

8B2B9A00839EED1DFDCCC3BFC2F5DF12

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Size 174B
SHA256 8ad27b3b02ccbcd2ee20a5aa6360318def3e7765aaa85e6e04eefde1a21d64f4
MD5 cfdf919ef4a056511c2f4c6451025e4a
SHA1 356c3d4651afac385c686af25743d6a5bfba113b
SHA512 a06924f25b3bbad91a41e33cc656cc51edb7eecbe3e328608a73f03f04c9d2882d32807476e411ec62ecd1e1dac3ed5b314a908d0d49d682a9ffccaade9a2a8f
MD5 SHA1 SHA512

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B46811C17859FFB409CF0E904A4AA8F8

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Size 170B
SHA256 568c9e755c03d73201cc7ed3f392011d9a68557b9d2f65174f29a22d965bde5f
MD5 6292e0b466203e0280a38761f0683691
SHA1 97a0508c3e007c4f1770a75f5d9686b017d0745c
SHA512 36247d1020ed470c411856587b9674d075c133a9c2b3b5e304e5392a172c21b3b32fa18cd7e79cc36dbc4c79c6c43a3bde0037c209eb5a4544750a033d083b5d
MD5 SHA1 SHA512

Submit Download

sab666.exe

Path C:\Users\Admin\AppData\Local\934ffee2-6726-455e-b8f3-91a3d14e9a6d\sab666.exe
Size 725KB
SHA256 500ccbcd1562c90f659b25d9998198fa89026e352ff0ceed736742ae3d36cede
MD5 049819fc619411de8764e0356c68c8b1
SHA1 8f774101357930a99e4e7edb40724d338e23842b
SHA512 0d97fa952e6d7efe474010e69fd0db93c200b434092ecba30c2b1b169e24d00613f825ebc21717c38dd713a352fdd3a32e485cea59c48892e7ccfd28790c5feb
SSDEEP 12288:8vBvH0CP2jc1i+OxmvqDLHODkGRNxS0wFhqUVcG5NAzRdtXUA1u:8vBv0W+cQ+OxiMCDkQNs096cGfmR8
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2784-30-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-45-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-50-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-20-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-49-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-48-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-47-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-44-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-25-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-26-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2784-35-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3000-6-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3000-3-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3000-4-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3000-5-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3000-17-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4360-1-0x0000000002CF0000-0x0000000002D8D000-memory.dmp

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memory/4360-2-0x0000000004A20000-0x0000000004B3B000-memory.dmp

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