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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868. 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


Threat unknown


Vendor detections: 8


Intelligence 8 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868
SHA3-384 hash: ecee38fb8fcb1cd653fac75c16d4ffea231fa56c6a1aeff9f5bbc7d6131d0f718f49608d98d5ea1dcdb09901d723dfbc
SHA1 hash: 22977aa55fe9fe35585a9cd8325366b27229a4cf
MD5 hash: 63b4580f11aead38218cb949fb5cfa7c
humanhash: purple-nevada-artist-yankee
File name:b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868.exe
Download: download sample
File size:2'068'008 bytes
First seen:2026-09-08 02:28:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 88016fcdef7f227c62171d0afad9aae4 (25 x ValleyRAT, 20 x OffLoader, 14 x Tofsee)
ssdeep 24576:5XVrSLScusMmOvjjhzvLmdFtswMBsFDphTah+O1bj4K1yhcjP+vADe4Kfqp51/qh:yuI2hMFtBMOppao7h6qggqa
TLSH T1C1A5D03FB24B613EE0AE1A397A77D210543B7A7164124C5696F4C88CCF95A702E3E787
TrID 61.4% (.EXE) Inno Setup installer (107240/4/30)
23.8% (.EXE) Win32 EXE PECompact compressed (generic) (41569/9/9)
3.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.7% (.EXE) Win64 Executable (generic) (6522/11/2)
2.5% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon e05c5c5c4c6c4c12
Reporter whack_sh
Tags:exe whack.sh

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/bcfc4992-deb3-42de-8cc9-26216bf40f46/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-09-08 02:37:02 UTC
Tags:
evasion susp-lnk delphi inno installer
Link:
https://app.any.run/tasks/b0502df8-efee-414a-81f2-fb663b24963d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/84464/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for synchronization primitives
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context crypto embarcadero_delphi fingerprint inno installer installer installer-heuristic packed reconnaissance
Link:
https://www.filescan.io/uploads/6a9f7300c7b5b705b5bb46a3/reports/aef30881-9df8-46b3-83fe-ebdbdccba65c/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/ad363a91-5866-4243-9930-de1381ab26d2
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
40 / 100
Link:
https://www.joesandbox.com/analysis/1969682
Signature
Bypasses PowerShell execution policy
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for submitted file
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Windows shortcut file (LNK) contains suspicious command line arguments
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1969682 Sample: n0WqOJAx9G.exe Startdate: 08/09/2026 Architecture: WINDOWS Score: 40 71 mementomoriwallpaper.com 2->71 73 bowas007.github.io 2->73 91 Multi AV Scanner detection for submitted file 2->91 93 Suspicious powershell command line found 2->93 95 Windows shortcut file (LNK) contains suspicious command line arguments 2->95 97 4 other signatures 2->97 10 n0WqOJAx9G.exe 2 2->10         started        13 powershell.exe 11 2->13         started        15 svchost.exe 2->15         started        signatures3 process4 dnsIp5 65 C:\Users\user\AppData\...\n0WqOJAx9G.tmp, PE32 10->65 dropped 18 n0WqOJAx9G.tmp 25 22 10->18         started        22 powershell.exe 13->22         started        24 powershell.exe 13->24         started        27 conhost.exe 13->27         started        87 127.0.0.1 unknown unknown 15->87 file6 process7 dnsIp8 55 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 18->55 dropped 57 C:\Users\user\AppData\...\unins000.exe (copy), PE32 18->57 dropped 59 C:\Users\user\AppData\...\is-2QH6T43YLJ.tmp, PE32 18->59 dropped 99 Suspicious powershell command line found 18->99 101 Bypasses PowerShell execution policy 18->101 29 powershell.exe 29 18->29         started        32 powershell.exe 37 18->32         started        61 C:\Users\user\AppData\...\z5os3vik.cmdline, Unicode 22->61 dropped 103 Loading BitLocker PowerShell Module 22->103 35 csc.exe 22->35         started        81 bowas007.github.io 185.199.108.153, 443, 49780 FASTLY-FastlyIncUS United States 24->81 83 mementomoriwallpaper.com 185.199.110.153, 443, 49782 FASTLY-FastlyIncUS United States 24->83 file9 signatures10 process11 file12 67 C:\Users\user\...\mm-9f8b8970378f.json, JSON 29->67 dropped 37 powershell.exe 23 29->37         started        41 chrome.exe 3 29->41         started        44 conhost.exe 29->44         started        89 Loading BitLocker PowerShell Module 32->89 46 conhost.exe 32->46         started        69 C:\Users\user\AppData\Local\...\z5os3vik.dll, PE32 35->69 dropped 48 cvtres.exe 35->48         started        signatures13 process14 dnsIp15 63 C:\Users\user\AppData\...\mm-9f8b8970378f.png, PNG 37->63 dropped 105 Loading BitLocker PowerShell Module 37->105 85 192.168.2.5, 138, 443, 49552 unknown unknown 41->85 50 chrome.exe 41->50         started        53 chrome.exe 41->53         started        file16 signatures17 process18 dnsIp19 75 www.google.com 142.251.151.119, 443, 49757, 49765 GOOGLE-GoogleLLCUS United States 50->75 77 android.l.google.com 142.251.35.238, 443, 49775, 49776 GOOGLE-GoogleLLCUS United States 50->77 79 2 other IPs or domains 50->79
Score:
78%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/63b4580f11aead38218cb949fb5cfa7c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wkhtpkttylrumgzpnddnxwha4oljnsgd4g5prisdedwn26yfxbua._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution installer
Link:
https://tria.ge/reports/260908-cylz4azgke/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Inno Setup is an open-source installation builder for Windows applications.
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Program Files directory
Drops file in Windows directory
Checks installed software on the system
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868
MD5 hash:
63b4580f11aead38218cb949fb5cfa7c
SHA1 hash:
22977aa55fe9fe35585a9cd8325366b27229a4cf
Link:
https://www.unpac.me/results/b1af5ce8-cfd3-4d38-9648-f16f82ac922d/
SH256 hash:
804b05b70fa438d88bf5b9881d9a2a169be7c4e1d0cb1e81956996e83a25f6f3
MD5 hash:
6f9a076d0f286d76d8501880610fb889
SHA1 hash:
cfaab4f87c3a537345d2d9fd75a2d826e7a575d5
Link:
https://www.unpac.me/results/b1af5ce8-cfd3-4d38-9648-f16f82ac922d/
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/b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868

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:Borland
Create hunting rule
Author:malware-lu
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Web download

Executable exe b28f37aa73c2e3461b2f68c6dbd8e0e39696c8c3e1baf8a24320ecdd7b05b868

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/84464/

Comments