MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 11


Intelligence 11 IOCs YARA 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb
SHA3-384 hash: b824080fb9781a662c9e214e2c4e093708433c8c8a0454123c59a521b50cc806377d3ee2862710c593de6d2a86c1b68c
SHA1 hash: 140985e27a1e09a2a0842dd4cb663c3c0cc7260e
MD5 hash: 8287c44ca50917a3452ea644faf5526b
humanhash: nevada-alaska-michigan-cat
File name:Chr%D0%BEm%D0%B5S%D0%B5tu%D1%80.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:18'181'378 bytes
First seen:2023-08-31 03:14:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 21314122cd4542a6b9b297f52a87acbe (3 x GuLoader, 2 x LummaStealer, 2 x ConnectWise)
ssdeep 49152:LWtfl3xiDZjSPQaLOpU0dpBYYZFfsqWGXwuO6Bpp5r8/XYpnF4tk11zppI04zmHr:Ctfl0kYax0dMiNsqWGXwtyn8/U5
Threatray 14 similar samples on MalwareBazaar
TLSH T1B1076B30EA44021BDE8313BBAC6256D3A93CD6115302229AFA9E135D1B574DC937EF7E
TrID 50.8% (.CPL) Windows Control Panel Item (generic) (197083/11/60)
30.0% (.OCX) Windows ActiveX control (116521/4/18)
10.7% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
2.7% (.EXE) Win64 Executable (generic) (10523/12/4)
1.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 696a6ee2b2b2c2cc (18 x RedLineStealer, 17 x LummaStealer, 16 x CoinMiner)
Reporter monitorsg
Tags:ClearFake exe GuLoader


Avatar
monitorsg
hXXps://dust-0001.delorazahnow.workers[.]dev/ (Injected) --> hXXps://ewkekezmwzfevwvwvvmmmmmmwfwf[.]site/vvmd54/ --> hXXps://ewkekezmwzfevwvwvvmmmmmmwfwf[.]site/ZgbN19Mx (Keitaro) --> hXXps://ewkekezmwzfevwvwvvmmmmmmwfwf[.]site/lander/chrome/_index.php (index) --> hXXps://stats-best[.]site/fp.php (fingerprint) --> hXXps://r0ooiw.dm.files.1drv[.]com (download)

Intelligence

File Origin
# of uploads :
1
# of downloads :
318
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
d0ab5dad-294a-4e3f-8aa1-0ed2688998c3
Verdict:
Malicious activity
Analysis date:
2023-08-31 03:15:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/14d3a03e-b472-460a-a5de-ba89d7286503

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file in the %temp% directory
Moving a file to the %temp% directory
Launching a process
Modifying a system file
Creating a file in the Windows subdirectories
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Launching cmd.exe command interpreter
Running batch commands
Creating a process with a hidden window
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb
Result
Verdict:
MALICIOUS
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/c1964165-9a6b-40b9-9ea0-a57876808893
Result
Threat name:
Amadey, LummaC Stealer, RedLine, SectopR
Create hunting rule
Detection:
malicious
Classification:
evad.troj.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1300784
Signature
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Creates an undocumented autostart registry key
Detected VMProtect packer
Drops executables to the windows directory (C:\Windows) and starts them
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Injects code into the Windows Explorer (explorer.exe)
Installs a MSI (Microsoft Installer) remotely
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
PE file contains section with special chars
Performs DNS queries to domains with low reputation
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Uses cmd line tools excessively to alter registry or file data
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Amadey bot
Yara detected Amadeys stealer DLL
Yara detected LummaC Stealer
Yara detected RedLine Stealer
Yara detected SectopRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1300784 Sample: Chr%D0%BEm%D0%B5S%D0%B5tu%D... Startdate: 31/08/2023 Architecture: WINDOWS Score: 100 100 fibrodoorsbig.xyz 2->100 102 tse1.mm.bing.net 2->102 132 Snort IDS alert for network traffic 2->132 134 Found malware configuration 2->134 136 Malicious sample detected (through community Yara rule) 2->136 138 14 other signatures 2->138 12 pythonw.exe 11 2->12         started        15 msiexec.exe 90 49 2->15         started        19 Chr%D0%BEm%D0%B5S%D0%B5tu%D1%80.exe 23 2->19         started        21 3 other processes 2->21 signatures3 process4 dnsIp5 76 C:\Users\user\AppData\...\winsound.pyd, PE32+ 12->76 dropped 78 C:\Users\user\AppData\...\vcruntime140_1.dll, PE32+ 12->78 dropped 80 C:\Users\user\AppData\...\vcruntime140.dll, PE32+ 12->80 dropped 88 5 other malicious files 12->88 dropped 23 pythonw.exe 1 12->23         started        82 C:\Windows\Installer\MSIA85E.tmp, PE32 15->82 dropped 84 C:\Windows\Installer\MSIA3B6.tmp, PE32 15->84 dropped 86 C:\Windows\Installer\MSIA358.tmp, PE32 15->86 dropped 90 12 other malicious files 15->90 dropped 112 Drops executables to the windows directory (C:\Windows) and starts them 15->112 26 msiexec.exe 15->26         started        28 msiexec.exe 15->28         started        30 MSIA85E.tmp 15->30         started        110 ocmtancmi2c4t.life 188.114.96.7, 443, 49719, 49720 CLOUDFLARENETUS European Union 19->110 92 6 other malicious files 19->92 dropped 114 Installs a MSI (Microsoft Installer) remotely 19->114 32 cmd.exe 1 19->32         started        34 msiexec.exe 19->34         started        116 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 21->116 118 Query firmware table information (likely to detect VMs) 21->118 120 Tries to harvest and steal browser information (history, passwords, etc) 21->120 122 2 other signatures 21->122 file6 signatures7 process8 signatures9 144 Writes to foreign memory regions 23->144 146 Maps a DLL or memory area into another process 23->146 36 cmd.exe 2 23->36         started        148 Uses cmd line tools excessively to alter registry or file data 32->148 150 Found hidden mapped module (file has been removed from disk) 32->150 40 conhost.exe 32->40         started        42 cmd.exe 1 32->42         started        44 cmd.exe 1 32->44         started        46 2 other processes 32->46 process10 file11 70 C:\Users\user\AppData\Local\Temp\hkpbt, PE32 36->70 dropped 140 Injects code into the Windows Explorer (explorer.exe) 36->140 142 Writes to foreign memory regions 36->142 48 explorer.exe 13 36->48         started        53 conhost.exe 36->53         started        signatures12 process13 dnsIp14 94 lungalungaenergyltd.co.ke 192.185.96.106, 49768, 80 UNIFIEDLAYER-AS-1US United States 48->94 96 104.21.69.160, 49742, 49746, 49748 CLOUDFLARENETUS United States 48->96 98 fibrodoorsbig.xyz 172.67.210.89, 49736, 49737, 49738 CLOUDFLARENETUS United States 48->98 68 C:\Users\user\...\tdavooftihhefjjswv.exe, PE32 48->68 dropped 124 System process connects to network (likely due to code injection or exploit) 48->124 126 Query firmware table information (likely to detect VMs) 48->126 128 Performs DNS queries to domains with low reputation 48->128 130 2 other signatures 48->130 55 tdavooftihhefjjswv.exe 48->55         started        file15 signatures16 process17 dnsIp18 104 5.42.64.33, 49772, 80 RU-KSTVKolomnaGroupofcompaniesGuarantee-tvRU Russian Federation 55->104 106 zopoman.com 142.132.151.118, 443, 49773, 49774 UNIVERSITYOFWINNIPEG-ASNCA Canada 55->106 72 C:\Users\user\AppData\Local\...\BRRRR.exe, PE32 55->72 dropped 74 C:\Users\user\AppData\Local\...\BRRRR[1].exe, PE32 55->74 dropped 152 Antivirus detection for dropped file 55->152 154 Overwrites code with unconditional jumps - possibly settings hooks in foreign process 55->154 156 Creates an undocumented autostart registry key 55->156 158 2 other signatures 55->158 60 BRRRR.exe 55->60         started        64 schtasks.exe 55->64         started        file19 signatures20 process21 dnsIp22 108 95.143.190.57, 15648, 49775, 49776 RHTEC-ASrh-tecIPBackboneDE Russian Federation 60->108 160 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 60->160 162 Query firmware table information (likely to detect VMs) 60->162 164 Tries to detect sandboxes and other dynamic analysis tools (window names) 60->164 166 4 other signatures 60->166 66 conhost.exe 64->66         started        signatures23 process24
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-08-30 20:54:01 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
4 of 24 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xucdv6czu6lis5dc5v5fvlnrysqul5t7agqaysnuljfyavsnu25q._file
Verdict:
malicious
Label(s):
raccoon
Create hunting rule
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+ 4 additional samples on MalwareBazaar
Result
Malware family:
sectoprat
Create hunting rule
Score:
  10/10
Tags:
family:amadey family:sectoprat discovery evasion persistence rat spyware stealer themida trojan vmprotect
Link:
https://tria.ge/reports/230831-drw26aca71/
Behaviour
Creates scheduled task(s)
Modifies data under HKEY_USERS
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Themida packer
Use of msiexec (install) with remote resource
VMProtect packed file
Blocklisted process makes network request
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Amadey
SectopRAT
SectopRAT payload
Malware Config
C2 Extraction:
5.42.64.33/vu3skClDn/index.php
Unpacked files
SH256 hash:
bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb
MD5 hash:
8287c44ca50917a3452ea644faf5526b
SHA1 hash:
140985e27a1e09a2a0842dd4cb663c3c0cc7260e
Link:
https://www.unpac.me/results/ac7d87ed-92e8-4284-b493-9391c0ed9a4b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bd043af859a7/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:APT_Sandworm_ArguePatch_Apr_2022_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect ArguePatch loader used by Sandworm group for load CaddyWiper
Reference:https://www.welivesecurity.com/2022/04/12/industroyer2-industroyer-reloaded/
Rule name:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:GuLoader
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxUserNames
Create hunting rule
Author:ditekSHen
Description:Detects executables containing possible sandbox analysis VM usernames
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sectigo_Code_Signed
Create hunting rule
Description:Detects code signed by the Sectigo RSA Code Signing CA
Reference:https://bazaar.abuse.ch/export/csv/cscb/
Rule name:unknown_dropper
Create hunting rule
Author:#evilcel3ri
Description:Detects an unknown dropper
Rule name:Warp
Create hunting rule
Author:Seth Hardy
Description:Warp
Rule name:WarpStrings
Create hunting rule
Author:Seth Hardy
Description:Warp Identifying Strings

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

GuLoader

Executable exe bd043af859a796897462ed7a5aadb1c4a145f67f01a00c49b45a4b80564da6bb

(this sample)

  
Link
https://infosec.exchange/@monitorsg/110982048203069988
  
Delivery method
Distributed via web download

Comments