MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 791a4219e0a98665d6abe5f0267c03499bd8d842c894daaac554f5e3200bc5fb. 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



Floxif


Vendor detections: 15


Intelligence 15 IOCs YARA 13 File information Comments

SHA256 hash: 791a4219e0a98665d6abe5f0267c03499bd8d842c894daaac554f5e3200bc5fb
SHA3-384 hash: df16e937aca02122cc115a2da96a7aadeda5ea4b28e0eb27b8eaaf7d58ddf65328cf86911e541273fd9a8c4c60631d07
SHA1 hash: 49e82ec1008d0e6f44c36f640179f651baf08da0
MD5 hash: 76beae1ea60be60e51cd64fa597d2af5
humanhash: montana-leopard-william-montana
File name:vcredist_x64.exe
Download: download sample
Signature Floxif
File size:5'752'095 bytes
First seen:2025-05-02 23:15:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a1f6f100bff4507a3332f3f0cdfc24f5 (2 x Floxif)
ssdeep 98304:isPj6quMcylIpk4nM6tmMUrfvEP0hcKju9Z/lTPU8UBHBKNpr1w36Zy+:vPjzDJ4M6tmXDsPKi1lTPmHipJwqj
TLSH T1BF4633B8F0019BADEAD925F4767F28D742E4C1BCD20330C75B9971CE6EBE186B25A540
TrID 80.9% (.EXE) MS generic-sfx Cabinet File Unpacker (32/64bit MSCFU) (350567/2/26)
7.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
3.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
2.4% (.EXE) Win64 Executable (generic) (10522/11/4)
1.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
Magika pebin
dhash icon 848c5454baf47474 (2'088 x Adware.Neoreklami, 101 x RedLineStealer, 33 x DiamondFox)
Reporter sswex
Tags:exe Floxif Virus


Avatar
sswex
This game hacked my GF's PC

Intelligence


File Origin
# of uploads :
1
# of downloads :
499
Origin country :
CA CA
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vcredist_x64.exe
Verdict:
Malicious activity
Analysis date:
2025-05-02 23:17:29 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
obfuscated dropper floxif
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Creating a window
Creating a file in the %temp% subdirectories
Creating a file in the Program Files subdirectories
Creating a process from a recently created file
Replacing executable files
DNS request
Connection attempt
Moving a recently created file
Sending an HTTP GET request
Сreating synchronization primitives
Replacing files
Searching for synchronization primitives
Enabling the 'hidden' option for recently created files
Creating a file in the mass storage device
Infecting executable files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context crypto installer microsoft_visual_cc obfuscated overlay overlay packed packed packed packed packer_detected sfx xor-pe
Result
Threat name:
FloodFix, GhostRat
Detection:
malicious
Classification:
spre.troj.evad
Score:
100 / 100
Signature
Allows loading of unsigned dll using appinit_dll
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Infects executable files (exe, dll, sys, html)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Overwrites code with function prologues
Suricata IDS alerts for network traffic
Yara detected FloodFix
Yara detected GhostRat
Behaviour
Behavior Graph:
Threat name:
Win32.Virus.Floxif
Status:
Malicious
First seen:
2025-05-02 23:16:12 UTC
File Type:
PE (Exe)
Extracted files:
1705
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:floxif backdoor discovery persistence privilege_escalation trojan upx
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Checks system information in the registry
UPX packed file
Enumerates connected drives
ACProtect 1.3x - 1.4x DLL software
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Event Triggered Execution: AppInit DLLs
Detects Floxif payload
Floxif family
Floxif, Floodfix
Verdict:
Malicious
Tags:
trojan floxif Win.Virus.Pioneer-9111434-0
YARA:
Windows_Virus_Floxif_493d1897
Unpacked files
SH256 hash:
791a4219e0a98665d6abe5f0267c03499bd8d842c894daaac554f5e3200bc5fb
MD5 hash:
76beae1ea60be60e51cd64fa597d2af5
SHA1 hash:
49e82ec1008d0e6f44c36f640179f651baf08da0
SH256 hash:
49c1123dbecfa600c3a78a4dd06f1135776ffd0a3d0a119d40cdc142ec3769f1
MD5 hash:
3a7ec8c6a9c78dc4e67002a9b6d0584b
SHA1 hash:
46d120ef1a95bb1b289a6adba5149099d99817a7
SH256 hash:
bd0430e42d862b6a5139d323a3e722308cfb490799df9e0e07131c1b6331490a
MD5 hash:
7373aee312f868cdb1af0dfd477065cc
SHA1 hash:
6e6ff038910891246dc03d996950f6a21c84f6b1
SH256 hash:
2d703c51f8ec1ad46131eca3f62fe8f919497252af697d3279fdd1c87888fded
MD5 hash:
c47ef469e2e45b8df63099ffc8d58765
SHA1 hash:
b6411f36281cfbc2b7c505422bc18499d86ba5e3
SH256 hash:
c79f3e7e01cbfe5aae9ca6dec7357faaef33cd311b7ba86029f191389827c971
MD5 hash:
ea271e3f4a2252a5965d9c4506323668
SHA1 hash:
f66476df8e0d3408dcb591db9219a89948918609
SH256 hash:
9b430cf0279ea266bee0497fd21628c65442342d6270a8f7918522fa4fe9c387
MD5 hash:
f598b6379f84e43532b6adc2198bfd9c
SHA1 hash:
73fcd6e681a26ab2ea356a9b951a8557bbc43f4c
Detections:
win_floxif_auto Floxif MAL_Floxif_Generic SUSP_Microsoft_Copyright_String_Anomaly_2 MALWARE_Win_FloodFix
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.

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:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MALWARE_Win_FloodFix
Author:ditekSHen
Description:Detects FloodFix
Rule name:MAL_Floxif_Generic
Author:Florian Roth (Nextron Systems)
Description:Detects Floxif Malware
Reference:Internal Research
Rule name:MAL_Floxif_Generic_RID2DCE
Author:Florian Roth
Description:Detects Floxif Malware
Reference:Internal Research
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:SUSP_Microsoft_Copyright_String_Anomaly_2
Author:Florian Roth (Nextron Systems)
Description:Detects Floxif Malware
Reference:Internal Research
Rule name:SUSP_Microsoft_Copyright_String_Anomaly_2_RID3720
Author:Florian Roth
Description:Detects Floxif Malware
Reference:Internal Research
Rule name:SUSP_XORed_MSDOS_Stub_Message
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser
Author:malware-lu
Rule name:Windows_Virus_Floxif_493d1897
Author:Elastic Security
Rule name:win_floxif_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.floxif.

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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::GetLengthSid
ADVAPI32.dll::InitializeAcl
ADVAPI32.dll::InitializeSecurityDescriptor
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AddAccessAllowedAce
ADVAPI32.dll::GetTokenInformation
ADVAPI32.dll::SetSecurityDescriptorDacl
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
ntdll.dll::NtOpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetDriveTypeA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExA
KERNEL32.dll::MoveFileA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceA
WIN_CRYPT_APIUses Windows Crypt APIADVAPI32.dll::CryptAcquireContextA
ADVAPI32.dll::CryptGenRandom

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