Overview
overview
3Static
static
3mullvad_br...er.zip
windows7-x64
1mullvad_br...er.zip
windows10-2004-x64
1mullvad_br...on.dll
windows7-x64
1mullvad_br...on.dll
windows10-2004-x64
1mullvad_br...rp.dll
windows7-x64
1mullvad_br...rp.dll
windows10-2004-x64
1mullvad_br...rp.dll
windows7-x64
1mullvad_br...rp.dll
windows10-2004-x64
1mullvad_br...on.dll
windows7-x64
1mullvad_br...on.dll
windows10-2004-x64
1mullvad_br...ap.dll
windows7-x64
1mullvad_br...ap.dll
windows10-2004-x64
1mullvad_br...ng.dll
windows7-x64
1mullvad_br...ng.dll
windows10-2004-x64
1mullvad_br...p3.dll
windows7-x64
1mullvad_br...p3.dll
windows10-2004-x64
1mullvad_br...tp.dll
windows7-x64
1mullvad_br...tp.dll
windows10-2004-x64
1mullvad_br...rp.dll
windows7-x64
1mullvad_br...rp.dll
windows10-2004-x64
1mullvad_br...s.json
windows7-x64
3mullvad_br...s.json
windows10-2004-x64
3mullvad_br...s.json
windows7-x64
3mullvad_br...s.json
windows10-2004-x64
3mullvad_br...nt.ini
windows7-x64
1mullvad_br...nt.ini
windows10-2004-x64
1mullvad_br...s.json
windows7-x64
3mullvad_br...s.json
windows10-2004-x64
3mullvad_br...on.dll
windows7-x64
1mullvad_br...on.dll
windows10-2004-x64
1mullvad_br...re.dll
windows7-x64
1mullvad_br...re.dll
windows10-2004-x64
1Analysis
-
max time kernel
142s -
max time network
269s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
13-07-2024 19:31
Static task
static1
Behavioral task
behavioral1
Sample
mullvad_brute_gen_checker.zip
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
mullvad_brute_gen_checker.zip
Resource
win10v2004-20240709-en
Behavioral task
behavioral3
Sample
mullvad_brute_gen_checker/bin/Newtonsoft.Json.dll
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
mullvad_brute_gen_checker/bin/Newtonsoft.Json.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral5
Sample
mullvad_brute_gen_checker/bin/PuppeteerExtraSharp.dll
Resource
win7-20240705-en
Behavioral task
behavioral6
Sample
mullvad_brute_gen_checker/bin/PuppeteerExtraSharp.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral7
Sample
mullvad_brute_gen_checker/bin/PuppeteerSharp.dll
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
mullvad_brute_gen_checker/bin/PuppeteerSharp.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral9
Sample
mullvad_brute_gen_checker/bin/Rebex.Common.dll
Resource
win7-20240708-en
Behavioral task
behavioral10
Sample
mullvad_brute_gen_checker/bin/Rebex.Common.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral11
Sample
mullvad_brute_gen_checker/bin/Rebex.Imap.dll
Resource
win7-20240708-en
Behavioral task
behavioral12
Sample
mullvad_brute_gen_checker/bin/Rebex.Imap.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral13
Sample
mullvad_brute_gen_checker/bin/Rebex.Networking.dll
Resource
win7-20240704-en
Behavioral task
behavioral14
Sample
mullvad_brute_gen_checker/bin/Rebex.Networking.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral15
Sample
mullvad_brute_gen_checker/bin/Rebex.Pop3.dll
Resource
win7-20240705-en
Behavioral task
behavioral16
Sample
mullvad_brute_gen_checker/bin/Rebex.Pop3.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral17
Sample
mullvad_brute_gen_checker/bin/Rebex.Smtp.dll
Resource
win7-20240705-en
Behavioral task
behavioral18
Sample
mullvad_brute_gen_checker/bin/Rebex.Smtp.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral19
Sample
mullvad_brute_gen_checker/bin/RestSharp.dll
Resource
win7-20240704-en
Behavioral task
behavioral20
Sample
mullvad_brute_gen_checker/bin/RestSharp.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral21
Sample
mullvad_brute_gen_checker/bin/Settings/AppSettings.json
Resource
win7-20240704-en
Behavioral task
behavioral22
Sample
mullvad_brute_gen_checker/bin/Settings/AppSettings.json
Resource
win10v2004-20240709-en
Behavioral task
behavioral23
Sample
mullvad_brute_gen_checker/bin/Settings/CoreSettings.json
Resource
win7-20240708-en
Behavioral task
behavioral24
Sample
mullvad_brute_gen_checker/bin/Settings/CoreSettings.json
Resource
win10v2004-20240709-en
Behavioral task
behavioral25
Sample
mullvad_brute_gen_checker/bin/Settings/Environment.ini
Resource
win7-20240704-en
Behavioral task
behavioral26
Sample
mullvad_brute_gen_checker/bin/Settings/Environment.ini
Resource
win10v2004-20240709-en
Behavioral task
behavioral27
Sample
mullvad_brute_gen_checker/bin/Settings/FavoriteBlocks.json
Resource
win7-20240708-en
Behavioral task
behavioral28
Sample
mullvad_brute_gen_checker/bin/Settings/FavoriteBlocks.json
Resource
win10v2004-20240709-en
Behavioral task
behavioral29
Sample
mullvad_brute_gen_checker/bin/SilverBullet.Parallelization.dll
Resource
win7-20240708-en
Behavioral task
behavioral30
Sample
mullvad_brute_gen_checker/bin/SilverBullet.Parallelization.dll
Resource
win10v2004-20240709-en
Behavioral task
behavioral31
Sample
mullvad_brute_gen_checker/bin/SilverBulletPro.CLI.Core.dll
Resource
win7-20240705-en
Behavioral task
behavioral32
Sample
mullvad_brute_gen_checker/bin/SilverBulletPro.CLI.Core.dll
Resource
win10v2004-20240709-en
General
-
Target
mullvad_brute_gen_checker/bin/Settings/AppSettings.json
-
Size
50KB
-
MD5
f0b3d5f43ae4e62c592f3e4ef0ab1a48
-
SHA1
7b6ac9f84925c36bff60bd5da8c66f11b25b50e1
-
SHA256
ebbcdb768eded72ae009526ea3e6e0632778b3667bac2fab92b1be99aea71d02
-
SHA512
f2712a9782085f83b5acbcf5565d1a27f87a79857f095a89a91985419bb000437c318ba95fea0eaf3e867c33650fe0a25af7ff2f33653ac694cc6cd26e97c876
-
SSDEEP
384:gR5kHmUZCkHmUQzCrnFrbUzaLHkHmUckHmUr/bT:gKLHLJF0zGyLzLTbT
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000_Classes\Local Settings cmd.exe Key created \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000_Classes\Local Settings OpenWith.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4976 OpenWith.exe
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\mullvad_brute_gen_checker\bin\Settings\AppSettings.json1⤵
- Modifies registry class
PID:1936
-
C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4976