Analysis
-
max time kernel
150s -
max time network
137s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
11/10/2022, 14:34
Static task
static1
Behavioral task
behavioral1
Sample
d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
Resource
win10-20220901-en
General
-
Target
d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
-
Size
734KB
-
MD5
eb35897a35bb177b8604463adb69227d
-
SHA1
347ecca1055ef76d3e72e76d33090bfecd803c6a
-
SHA256
d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699
-
SHA512
9c6c45e98fa1944ef91f341394532d7123c445a5e4d7ce19315541295a47cca5772da562f65935f84676ce8e59e96a9c427a48e72937f801c91fe9d3bdc1c938
-
SSDEEP
12288:O0BU1LYqY36zsCmwPO9QXop8rroOXv2+njty+0g1vI64ztlkHjT/V+Vhtl:O0k8qtACm/9QlTu+jUSQbzcV8htl
Malware Config
Extracted
djvu
http://winnlinne.com/test1/get.php
-
extension
.pohj
-
offline_id
tHl9RvVtHhFQisMomKMdXzz2soNLhV0cuok85it1
-
payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.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-oTIha7SI4s 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: 0578Jhyjd
Extracted
vidar
55
517
https://t.me/truewallets
https://mas.to/@zara99
http://116.203.10.3:80
-
profile_id
517
Signatures
-
Detected Djvu ransomware 9 IoCs
resource yara_rule behavioral1/memory/3312-146-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3312-147-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/3520-149-0x00000000024F0000-0x000000000260B000-memory.dmp family_djvu behavioral1/memory/3312-154-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3312-208-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/3312-247-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2276-276-0x0000000000424141-mapping.dmp family_djvu behavioral1/memory/2276-336-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2276-460-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
-
Downloads MZ/PE file
-
Executes dropped EXE 2 IoCs
pid Process 4844 build2.exe 3160 build2.exe -
Loads dropped DLL 2 IoCs
pid Process 3160 build2.exe 3160 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 4532 icacls.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
-
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\f9048fc7-3ae8-4a68-9089-916e476bcad7\\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe\" --AutoStart" d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 1 api.2ip.ua 2 api.2ip.ua 10 api.2ip.ua -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3520 set thread context of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3244 set thread context of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 4844 set thread context of 3160 4844 build2.exe 72 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Program crash 1 IoCs
pid pid_target Process procid_target 4660 3160 WerFault.exe 72 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 2276 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 2276 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 3160 build2.exe 3160 build2.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3520 wrote to memory of 3312 3520 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 66 PID 3312 wrote to memory of 4532 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 67 PID 3312 wrote to memory of 4532 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 67 PID 3312 wrote to memory of 4532 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 67 PID 3312 wrote to memory of 3244 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 68 PID 3312 wrote to memory of 3244 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 68 PID 3312 wrote to memory of 3244 3312 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 68 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 3244 wrote to memory of 2276 3244 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 70 PID 2276 wrote to memory of 4844 2276 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 71 PID 2276 wrote to memory of 4844 2276 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 71 PID 2276 wrote to memory of 4844 2276 d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe 71 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72 PID 4844 wrote to memory of 3160 4844 build2.exe 72
Processes
-
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3520 -
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3312 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\f9048fc7-3ae8-4a68-9089-916e476bcad7" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
PID:4532
-
-
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3244 -
C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe"C:\Users\Admin\AppData\Local\Temp\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe"C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4844 -
C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe"C:\Users\Admin\AppData\Local\017f357a-6503-40e1-9f87-055b7c9b6eb2\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3160 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 14847⤵
- Program crash
PID:4660
-
-
-
-
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD56f59ed058aa06aaf5ec6213b955aabd4
SHA1baf7b828a563b8fb6111e4ce35e0055575ad80b4
SHA2562d82e2629fa2e08f28b43b15da43dff56c7f4b23b39d66109c7c61998e35b4d5
SHA5126b0f041dafb98b9eaf70ac0d20a98c56e1c42231c4a4ae6e11582b20d20bf8f96dfd7747739a10d77368994441adb0e181b356f8569697b1f22ab4fe931170ce
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD50698dbc93ba7b6bef73ba316695f8317
SHA1a444078ff1eb7c88f52cb4e324365926b491ed47
SHA256263292040d77903899257c1d21201dc64d6f8d6b5a1d945cd5b28d0124d7906c
SHA512ebacaa7009aebb88199cd70fd0bb3afe69ed300318cb633edd1c0404e42aef829617f589bcbad6cb7ab4bd0a8ae87f7df1435c786184ecc5de61c8fc6950a900
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD513d5abfd9eb95701861883684733eb4b
SHA178efbea26633dc86f9accd648593b4e66c4b7579
SHA256a749dbd45d92ab37631031e59f1752638fafb98b34487ee70608271f4c928b13
SHA5125eb93f5104511c98966b22b8cb7da8f6e81f47ead9eafdc4a14bea932901c39bbe78dfa6321d78e34816ea5499c17d475a0771ee0abeeddaec9aa7bc207484d5
-
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD557e8fe93c6ddf72a2935cc22f520b188
SHA15703d0f57c10506bc6972db65aaf0843639b49bf
SHA256ba1982ccfc01323fe4dfbc1b49de1d8b378de30906fd60e7579cdccc4c6b4e13
SHA51282c27e413c597e56dbe96fff1d4c36e621a7760e74dabca4a6b82dfc3dbc69bd4104c3edcb27283f1336b34e385735188888195586d8a2dbcef5a309fec28843
-
Filesize
321KB
MD55fd8c38657bb9393bb4736c880675223
SHA1f3a03b2e75cef22262f6677e3832b6ad9327905c
SHA2562a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
SHA51243c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe
-
Filesize
321KB
MD55fd8c38657bb9393bb4736c880675223
SHA1f3a03b2e75cef22262f6677e3832b6ad9327905c
SHA2562a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
SHA51243c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe
-
Filesize
321KB
MD55fd8c38657bb9393bb4736c880675223
SHA1f3a03b2e75cef22262f6677e3832b6ad9327905c
SHA2562a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
SHA51243c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe
-
C:\Users\Admin\AppData\Local\f9048fc7-3ae8-4a68-9089-916e476bcad7\d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699.exe
Filesize734KB
MD5eb35897a35bb177b8604463adb69227d
SHA1347ecca1055ef76d3e72e76d33090bfecd803c6a
SHA256d54868d2a9a23e7cf5bf0a49005dfad641f758c45022b4d17e264156587c8699
SHA5129c6c45e98fa1944ef91f341394532d7123c445a5e4d7ce19315541295a47cca5772da562f65935f84676ce8e59e96a9c427a48e72937f801c91fe9d3bdc1c938
-
Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
-
Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571