MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a. 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


Phorpiex


Vendor detections: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
SHA3-384 hash: e5f81b61bd35483fdfca0569d40a8e1a87dc4a721f4ddafe81639fd5ba259fb044c00a1677ea7fd45b66b031c5d96880
SHA1 hash: d8535ca73adc6d3e98912e732a17bb8d5bc4684e
MD5 hash: d0e8454af371b51c037526250102e6e4
humanhash: victor-pluto-venus-echo
File name:a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
Download: download sample
Signature Phorpiex
Create hunting rule
File size:809'432 bytes
First seen:2024-05-08 12:42:36 UTC
Last seen:2024-05-08 13:20:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 67715e556e3a78ea78c756db800102a3 (1 x Smoke Loader, 1 x Phorpiex)
ssdeep 12288:2rwQwDfT8qx+lXvb0nNoLcccOpIOvjsR6JlvitjTQeNt:23wDfTJxCXvb0nuLcccOpIR6Jl6t/QQ
Threatray 54 similar samples on MalwareBazaar
TLSH T184058E32A1900027E6F50773E85455307D79EE283F64959FE294F9AD2EB90926AF330F
TrID 46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.5% (.EXE) Win64 Executable (generic) (10523/12/4)
5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon f0fc6c69696992e0 (1 x Phorpiex, 1 x SliverFox)
Reporter adrian__luca
Tags:exe Phorpiex

Intelligence

File Origin
# of uploads :
2
# of downloads :
327
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
phorpiex
Create hunting rule
ID:
1
File name:
a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
Verdict:
Malicious activity
Analysis date:
2024-05-08 12:41:50 UTC
Tags:
loader phorpiex
Link:
https://app.any.run/tasks/d2ef790a-a743-4223-9f68-b9566fcfbb86

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.HLLW.Phorpiex.1414.24309.27534.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file in the Windows directory
Enabling the 'hidden' option for recently created files
Creating a file
DNS request
Connection attempt
Sending a UDP request
Connection attempt to an infection source
Launching a file downloaded from the Internet
Query of malicious DNS domain
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Disabling the operating system update service
Blocking the Windows Security Center notifications
Creating a file in the mass storage device
Sending an HTTP GET request to an infection source
Enabling a "Do not show hidden files" option
Enabling threat expansion on mass storage devices
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypto expand fingerprint lolbin overlay packed phorpiex runonce shell32 virus
Link:
https://www.filescan.io/uploads/663b7367b8652ad994a22465/reports/408ca740-bac4-4d99-b655-1ba8c35fcdd0/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
Malware family:
Phorpiex
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5a9c2162-4902-4e9d-a350-c6eabc33d8a8
Result
Threat name:
Phorpiex
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1438265
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Changes security center settings (notifications, updates, antivirus, firewall)
Changes the view of files in windows explorer (hidden files and folders)
Contains functionality to check if Internet connection is working
Contains functionality to detect sleep reduction / modifications
Contains functionality to determine the online IP of the system
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the user root directory
Found evasive API chain (may stop execution after checking mutex)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected Phorpiex
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1438265 Sample: I7ldmFS13W.exe Startdate: 08/05/2024 Architecture: WINDOWS Score: 100 79 twizt.net 2->79 81 yahoo.com 2->81 83 mta5.am0.yahoodns.net 2->83 107 Snort IDS alert for network traffic 2->107 109 Multi AV Scanner detection for domain / URL 2->109 111 Antivirus detection for URL or domain 2->111 113 8 other signatures 2->113 11 I7ldmFS13W.exe 17 2->11         started        16 winploravr.exe 2->16         started        18 winploravr.exe 2->18         started        20 2 other processes 2->20 signatures3 process4 dnsIp5 91 twizt.net 185.215.113.66, 49700, 49701, 49703 WHOLESALECONNECTIONSNL Portugal 11->91 67 C:\Users\user\AppData\Local\Temp\7A75.exe, PE32 11->67 dropped 69 C:\Users\user\AppData\Local\...\pei[1].exe, PE32 11->69 dropped 147 Hides that the sample has been downloaded from the Internet (zone.identifier) 11->147 22 7A75.exe 16 11->22         started        149 Multi AV Scanner detection for dropped file 16->149 151 Found evasive API chain (may stop execution after checking mutex) 16->151 153 Machine Learning detection for dropped file 16->153 file6 signatures7 process8 file9 61 C:\Users\user\AppData\...\1252723855.exe, PE32 22->61 dropped 63 C:\Users\user\AppData\Local\...\newtpp[1].exe, PE32 22->63 dropped 133 Multi AV Scanner detection for dropped file 22->133 135 Machine Learning detection for dropped file 22->135 137 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->137 26 1252723855.exe 1 1 22->26         started        signatures10 process11 file12 65 C:\Windows\sysbrapsvc.exe, PE32 26->65 dropped 139 Antivirus detection for dropped file 26->139 141 Multi AV Scanner detection for dropped file 26->141 143 Contains functionality to check if Internet connection is working 26->143 145 4 other signatures 26->145 30 sysbrapsvc.exe 8 44 26->30         started        signatures13 process14 dnsIp15 93 187.149.26.169, 40500 UninetSAdeCVMX Mexico 30->93 95 187.221.199.0, 40500 UninetSAdeCVMX Mexico 30->95 97 50 other IPs or domains 30->97 71 C:\Users\user\AppData\Local\...\579712223.exe, PE32 30->71 dropped 73 C:\Users\user\AppData\...\3331610877.exe, PE32 30->73 dropped 75 C:\Users\user\AppData\...\3236231418.exe, PE32 30->75 dropped 77 2 other malicious files 30->77 dropped 99 Antivirus detection for dropped file 30->99 101 Multi AV Scanner detection for dropped file 30->101 103 Found evasive API chain (may stop execution after checking mutex) 30->103 105 6 other signatures 30->105 35 296209917.exe 2 35 30->35         started        40 579712223.exe 30->40         started        42 3236231418.exe 30->42         started        44 2 other processes 30->44 file16 signatures17 process18 dnsIp19 85 91.202.233.141, 49721, 49723, 49725 M247GB Russian Federation 35->85 87 193.233.132.177, 49724, 49726, 49729 FREE-NET-ASFREEnetEU Russian Federation 35->87 53 C:\Windows\winploravr.exe, PE32 35->53 dropped 55 C:\Users\user\winploravr.exe, PE32 35->55 dropped 57 C:\Users\user\AppData\...\3117623355.exe, PE32 35->57 dropped 59 2 other malicious files 35->59 dropped 115 Multi AV Scanner detection for dropped file 35->115 117 Found evasive API chain (may stop execution after checking mutex) 35->117 119 Machine Learning detection for dropped file 35->119 121 Drops PE files to the user root directory 35->121 46 1124629957.exe 13 35->46         started        49 2627824283.exe 35->49         started        51 3117623355.exe 35->51         started        123 Antivirus detection for dropped file 40->123 125 Contains functionality to check if Internet connection is working 40->125 127 Contains functionality to detect sleep reduction / modifications 40->127 89 mta5.am0.yahoodns.net 67.195.204.73, 25 YAHOO-3US United States 42->89 129 Contains functionality to determine the online IP of the system 42->129 131 Hides that the sample has been downloaded from the Internet (zone.identifier) 42->131 file20 signatures21 process22 signatures23 155 Multi AV Scanner detection for dropped file 46->155
Score:
43%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
Detection:
phorpiex
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a/
Threat name:
Win32.Worm.Phorpiex
Create hunting rule
Status:
Malicious
First seen:
2024-04-28 00:40:00 UTC
File Type:
PE (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=utziinezpqopev2own62fqrsgtsg6347o5ghtuxhoay672wxo45a._file
Verdict:
malicious
Similar samples:
48eee6e4eedb7291e09cd68d3ff4f1608df7fb538be806d785a4e99cb77a9da2
Phorpiex
555513aa074aca680c4962f0078f43445a0d382e78046623d53203d8436bad99
Phorpiex
98e895f711226a32bfab152e224279d859799243845c46e550c2d32153c619fc
Phorpiex
9ac6aabe5f916e190055913ff7b161356c5b4e5e3d99b5036cf3675751bc765a
Phorpiex
a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
Phorpiex
ba7a55b17174de39cb44b553a52de3d0b3c979d37104a5ad1580cb97a8acc800
Phorpiex
+ 44 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  10/10
Tags:
evasion persistence trojan
Link:
https://tria.ge/reports/240508-pxw5wsdb3t/
Behaviour
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Windows security modification
Downloads MZ/PE file
Modifies security service
Windows security bypass
Unpacked files
SH256 hash:
a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a
MD5 hash:
d0e8454af371b51c037526250102e6e4
SHA1 hash:
d8535ca73adc6d3e98912e732a17bb8d5bc4684e
Link:
https://www.unpac.me/results/163d7d90-2726-4d44-bf7d-4bf98cf41499/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4f28434997c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Phorpiex
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/a4f28434997c1cf2574eb37da2c23234e46f6f9f774c79d2e77031efead7773a

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
ADVAPI32.dll::CreateWellKnownSid
ADVAPI32.dll::SetEntriesInAclW
ADVAPI32.dll::SetEntriesInAclA
ADVAPI32.dll::SetNamedSecurityInfoW
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoInitializeSecurity
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::CheckTokenMembership
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::SetSecurityDescriptorDacl
ADVAPI32.dll::SetSecurityDescriptorGroup
ADVAPI32.dll::SetSecurityDescriptorOwner
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::CloseHandle
WININET.dll::InternetCloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileMappingW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
ADVAPI32.dll::GetUserNameW
ADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt FilesADVAPI32.dll::DecryptFileW
WIN_CRYPT_APIUses Windows Crypt APICRYPT32.dll::CertGetCertificateContextProperty
ADVAPI32.dll::CryptAcquireContextW
ADVAPI32.dll::CryptCreateHash
ADVAPI32.dll::CryptGetHashParam
ADVAPI32.dll::CryptHashData
CRYPT32.dll::CryptHashPublicKeyInfo
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_SVC_APICan Manipulate Windows ServicesADVAPI32.dll::ChangeServiceConfigW
ADVAPI32.dll::OpenSCManagerW
ADVAPI32.dll::OpenServiceW
ADVAPI32.dll::QueryServiceConfigW
ADVAPI32.dll::QueryServiceStatus
WIN_TRUST_APIUses Windows Trust APIWINTRUST.dll::WinVerifyTrust
WINTRUST.dll::WTHelperProvDataFromStateData
WIN_USER_APIPerforms GUI ActionsUSER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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