MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97791eba8ac9745155cea4cc1a90e44765a97b840441220ec13c82f719c65f1a. 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



XWorm


Vendor detections: 15


Intelligence 15 IOCs YARA 10 File information Comments

SHA256 hash: 97791eba8ac9745155cea4cc1a90e44765a97b840441220ec13c82f719c65f1a
SHA3-384 hash: b75cb7f4ba8b7ca166e60ca14479919598b0b5c365e9412d8b072940a62adacecc77d08c2254dae72f8e92437a05d10b
SHA1 hash: 952c18216a17e1fe0ebcf47dde11b4c8e2aa2ca7
MD5 hash: 23a1a1597c73b799cf5e36d030d48c22
humanhash: connecticut-ten-harry-batman
File name:BugSplat64.dll
Download: download sample
Signature XWorm
File size:2'760'704 bytes
First seen:2025-02-27 05:54:56 UTC
Last seen:2025-02-27 06:44:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6a87a82866fbc180a7dc37c06f2ab074 (3 x Formbook, 1 x RemcosRAT, 1 x XWorm)
ssdeep 49152:yadwL1ruHu4JSAlX8k14nKBZSTq+Dt18YtRDl9dE:Qrumk1aL
Threatray 20 similar samples on MalwareBazaar
TLSH T19FD59D15A3E401B8D53BDA74CAA29333D670B9D65330D58B0698D6592FB3E908B3F732
TrID 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
35.2% (.EXE) InstallShield setup (43053/19/16)
8.6% (.EXE) Win64 Executable (generic) (10522/11/4)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter ankit_anubhav
Tags:exe xworm

Intelligence


File Origin
# of uploads :
2
# of downloads :
477
Origin country :
TH TH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
[_Correo Sospechoso SuspiciousBanned_Word_] DESPRENDIBLE CONSIGNACION REALIZADA.eml
Verdict:
Malicious activity
Analysis date:
2025-02-26 17:15:56 UTC
Tags:
auto generic remote xworm

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context crypto fingerprint lolbin masquerade microsoft_visual_cc obfuscated remote
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected XWorm
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1625359 Sample: BugSplat64.dll.exe Startdate: 27/02/2025 Architecture: WINDOWS Score: 100 42 tse1.mm.bing.net 2->42 44 shed.dual-low.s-part-0032.t-0009.t-msedge.net 2->44 46 4 other IPs or domains 2->46 50 Suricata IDS alerts for network traffic 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 8 other signatures 2->56 9 loaddll64.exe 1 2->9         started        signatures3 process4 process5 11 rundll32.exe 9->11         started        14 cmd.exe 1 9->14         started        16 rundll32.exe 9->16         started        18 16 other processes 9->18 signatures6 66 Writes to foreign memory regions 11->66 68 Allocates memory in foreign processes 11->68 70 Injects a PE file into a foreign processes 11->70 20 AddInProcess32.exe 11->20         started        23 MSBuild.exe 1 11->23         started        25 InstallUtil.exe 11->25         started        27 rundll32.exe 14->27         started        35 3 other processes 16->35 29 AddInProcess32.exe 18->29         started        31 AddInProcess32.exe 1 18->31         started        33 AddInProcess32.exe 18->33         started        37 11 other processes 18->37 process7 signatures8 58 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 20->58 60 Writes to foreign memory regions 27->60 62 Allocates memory in foreign processes 27->62 64 Injects a PE file into a foreign processes 27->64 39 AddInProcess32.exe 2 27->39         started        process9 dnsIp10 48 94.156.227.37, 1888, 49733, 49735 NETIXBG Bulgaria 39->48
Threat name:
Win64.Backdoor.Xworm
Status:
Malicious
First seen:
2025-02-27 04:56:02 UTC
File Type:
PE+ (Dll)
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:xworm discovery rat trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Detect Xworm Payload
Xworm
Xworm family
Malware Config
C2 Extraction:
94.156.227.37:1888
Unpacked files
SH256 hash:
97791eba8ac9745155cea4cc1a90e44765a97b840441220ec13c82f719c65f1a
MD5 hash:
23a1a1597c73b799cf5e36d030d48c22
SHA1 hash:
952c18216a17e1fe0ebcf47dde11b4c8e2aa2ca7
Please 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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Jupyter_infostealer
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::GetTokenInformation
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
KERNEL32.dll::CreateThreadpoolIo
KERNEL32.dll::CreateThreadpoolWait
KERNEL32.dll::CreateThreadpoolWork
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
KERNEL32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptCreateHash
bcrypt.dll::BCryptDestroyHash
bcrypt.dll::BCryptFinishHash
bcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptGetProperty
bcrypt.dll::BCryptHashData
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

Comments