MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb4d1e87bbab26d77af028693d2a9a5fdad3942dbb461b1a4f132ce61dc2ff02. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb4d1e87bbab26d77af028693d2a9a5fdad3942dbb461b1a4f132ce61dc2ff02
SHA3-384 hash: 9df2778620041bb2916156a889c98a4761ea69376ce9b0cd440c8422cb61e0dd272fc5932d42558c9564fcc44d4d92f9
SHA1 hash: cb9bf7f8ee9d663118f184c6028e2bf2d8279767
MD5 hash: 562da0987b59c7f5090ab4d0a873705b
humanhash: missouri-bluebird-four-purple
File name:MicrosoftTeams.exe
Download: download sample
File size:49'679'800 bytes
First seen:2025-03-23 18:53:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 46ce5c12b293febbeb513b196aa7f843 (12 x GuLoader, 5 x VIPKeylogger, 3 x LummaStealer)
ssdeep 786432:IfNPnEP1/v/1AqNzUVbckc85h/eTdeclu57+3Gc3pykN5mC2GfZPyvbqp7q3eqM8:Ifty1XHLm5h/eTdjlu57+9fD2a6bq+M8
TLSH T17FB7338439108D41D9C02B72C9653730339A9D1DD335894B92A0B8EEBBB3A5657BE3FD
TrID 37.3% (.EXE) Win64 Executable (generic) (10522/11/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 69616cccc4c5e4d4
Reporter g0njxa
Tags:CrazyEvil exe NoLogsMarch signed

Code Signing Certificate

Organisation:Hebei Duxin Technology Co., Ltd.
Issuer:GlobalSign GCC R45 EV CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2025-03-05T03:10:10Z
Valid to:2026-03-06T03:10:10Z
Serial number: 5c6da215ce8c891d2d08b7cd
Intelligence: 4 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Central Blocklist:This certificate is on the Cert Central blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 2c53451e7b17a677a77b3bb62a79f7a8230c662ca50655e44bea390c19fdcf23
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
568
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
MicrosoftTeams.exe
Verdict:
Malicious activity
Analysis date:
2025-03-23 19:01:28 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/49ff20a3-09ba-4168-a669-b6344ba578f4

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e19697acb044ea849e76c9
Tags:
virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Searching for the window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc overlay signed
Link:
https://www.filescan.io/uploads/67e058d0a175d3177345c249/reports/68609c12-d11c-4c50-8623-2f5b3adce0b1/overview
Verdict:
Suspicious
Labled as:
VHO_Trojan_MSIL_Agent_gen
Link:
https://www.hybrid-analysis.com/sample/bb4d1e87bbab26d77af028693d2a9a5fdad3942dbb461b1a4f132ce61dc2ff02
Result
Verdict:
UNKNOWN
Result
Threat name:
n/a
Detection:
suspicious
Classification:
n/a
Score:
28 / 100
Link:
https://www.joesandbox.com/analysis/1646273
Signature
Antivirus detection for URL or domain
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
18%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/bb4d1e87bbab26d77af028693d2a9a5fdad3942dbb461b1a4f132ce61dc2ff02
Gathering data
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-03-19 21:37:31 UTC
File Type:
PE (Exe)
Extracted files:
1212
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xngr5b53vmtno6xqfbut2ku2l7nnhfbnxndbwgspcmwomhoc74ba._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/250323-xj87as1xdv/
Behaviour
Enumerates system info in registry
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
.NET Reactor proctector
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/968d5b7b-8f37-4a6a-91c5-82946b076afc
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/bb4d1e87bbab26d77af028693d2a9a5fdad3942dbb461b1a4f132ce61dc2ff02

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

Comments