MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40. 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

TrustConnect

Vendor detections: 13

Intelligence 13 IOCs YARA 29 File information Comments

SHA256 hash:	cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40
SHA3-384 hash:	e0cfd5048baf49416e608c0c02b0ffe04bc6dd5767b589f7081f8713c6e94dcc7fbe61950f663f90ea3f75a387f9fbf6
SHA1 hash:	057037c4ac245077b8e7726b167d4c2b01b520ec
MD5 hash:	68a11dd5d95b9769709df3127f91b479
humanhash:	hotel-tennis-monkey-bakerloo
File name:	MsTeams.exe
Download:	download sample
Signature	TrustConnect Create hunting rule
File size:	36'331'448 bytes
First seen:	2026-02-23 22:11:53 UTC
Last seen:	2026-02-23 22:22:42 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	70d2e884fa127843c5bcbb53da86b6c8 (9 x TrustConnect, 5 x ConnectWise, 3 x AxisControl)
ssdeep	393216:SKxapWfkMIAr4SvhZ6sRvI9cR8vq/mQFgeyh0LfHPQu2jYvnUwEbc/81L:U4L9r/vbpvuY7Key+7PJsYPUlbv
TLSH	T1F9871256E2FD00E8D5BBC0B8C6575517E7B1341913309BEB66A48A692F37BE0AE3D310
TrID	51.9% (.EXE) Win64 Executable (generic) (6522/11/2) 16.1% (.EXE) OS/2 Executable (generic) (2029/13) 15.9% (.EXE) Generic Win/DOS Executable (2002/3) 15.9% (.EXE) DOS Executable Generic (2000/1)
Magika	pebin
Reporter	smica83
Tags:	exe FakeRMM RAT signed TrustConnect

Code Signing Certificate

Organisation:	TrustConnect Software PTY LTD
Issuer:	Certum Extended Validation Code Signing 2021 CA
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-01-27T08:59:27Z
Valid to:	2027-01-27T08:59:26Z
Serial number:	055a00a5dc820fda8dbb754490b4bacf
Intelligence:	7 malware samples on MalwareBazaar are signed with this code signing certificate
MalwareBazaar Blocklist:	This certificate is on the MalwareBazaar code signing certificate blocklist (CSCB)
Cert Graveyard Blocklist:	This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:	SHA256
Thumbprint:	c01e98107ab35d9b2e219e94ebc5abe8d11915f54c97775157363e2ff589b765
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

132

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

ReadyToRun

Details

Link:

https://research.acce.ciphertechsolutions.com/results/932cc8ae-fc9c-4ddd-bf13-8531ba33f57f/

Malware family:

n/a

ID:

File name:

_cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40.exe

Verdict:

Malicious activity

Analysis date:

2026-02-23 22:16:06 UTC

Tags:

trustconnect rat auto-reg websocket

Link:

https://app.any.run/tasks/63bfe69f-1e30-4b11-8287-a4f829b34626

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=699cd1478fffa866e3b14c4d

Tags:

n/a

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Creating a file in the Program Files subdirectories

Launching a process

Creating a service

Launching a service

Creating a process from a recently created file

Searching for synchronization primitives

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

DNS request

Enabling autorun for a service

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug fingerprint installer-heuristic microsoft_visual_cc overlay revoked-cert signed

Link:

https://www.filescan.io/uploads/699cd0d197feb4afd65505fc/reports/ef918137-bd4f-4e7f-816b-7b554fc78a98/overview

Verdict:

Malicious

Labled as:

SupportScam_Win32_Screwon_PRP_MTB

Link:

https://www.hybrid-analysis.com/sample/cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-02-05T15:35:00Z UTC

Last seen:

2026-02-13T17:23:00Z UTC

Hits:

~100

Detections:

PDM:Trojan.Win32.Generic Trojan.Win32.Staser.ezkn Trojan.Win32.Agent.sb RemoteAdmin.ConnectWise.HTTP.C&C

Link:

https://opentip.kaspersky.com/cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40/results?tab=lookup

Score:

87%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40

Gathering data

Verdict:

Malicious

Threat:

RemoteAdmin.Win32.Staser

Link:

https://tip.neiki.dev/file/cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40

Threat name:

Win64.PUA.Screwon

Status:

Malicious

First seen:

2026-02-06 03:11:39 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

10 of 24 (41.67%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z6c2jalhcw4pu3a6ww2q2hdqz7xrczjcoqxw6hdxzodisftlt5aa._file

Result

Malware family:

n/a

Score:

7/10

Tags:

discovery execution persistence

Link:

https://tria.ge/reports/260223-14p6psdv5a/

Behaviour

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks installed software on the system

Drops file in Program Files directory

Executes dropped EXE

Launches sc.exe

Adds Run key to start application

Creates new service(s)

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/cf85a4816715b8fa6c1eb5b50d1c70cfef116522742f6f1c77cb8689166b9f40

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:	Check_OutputDebugStringA_iat Create hunting rule

Rule name:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

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:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__MemoryWorkingSet Create hunting rule
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:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerException__SetConsoleCtrl Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	Jupyter_infostealer Create hunting rule
Author:	CD_R0M_
Description:	Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022

Rule name:	Lumma_Stealer_Detection Create hunting rule
Author:	ashizZz
Description:	Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:	https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

Rule name:	reverse_http Create hunting rule
Author:	CD_R0M_
Description:	Identify strings with http reversed (ptth)

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	Rooter Create hunting rule
Author:	Seth Hardy
Description:	Rooter

Rule name:	RooterStrings Create hunting rule
Author:	Seth Hardy
Description:	Rooter Identifying Strings

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	Sus_CMD_Powershell_Usage Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

Rule name:	telebot_framework Create hunting rule
Author:	vietdx.mb

Rule name:	test_Malaysia Create hunting rule
Author:	rectifyq
Description:	Detects file containing malaysia string

Rule name:	ThreadControl__Context Create hunting rule
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.

No further information available

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample