MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718. 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

CoinMiner

Vendor detections: 10

Intelligence 10 IOCs YARA 24 File information Comments

SHA256 hash:	99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718
SHA3-384 hash:	7393ffff363eaf9711cb34e2090e266c1514a6a7fd632a308756074f53f1ad8c6cd913db4723787183d4b88c4129ab26
SHA1 hash:	a36eb533fb1ef2895a02190631afe844bcc82db6
MD5 hash:	8f263b4d2d90b9bd53c73361ff395339
humanhash:	lamp-september-dakota-maryland
File name:	SecuriteInfo.com.FileRepMalware.27738.2925
Download:	download sample
Signature	CoinMiner Create hunting rule
File size:	24'286'720 bytes
First seen:	2025-07-02 04:25:02 UTC
Last seen:	2025-07-02 05:25:22 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	9aebf3da4677af9275c461261e5abde3 (25 x YTStealer, 12 x CobaltStrike, 11 x Hive)
ssdeep	393216:Z68oCOegKxGjAE9hR9ftTc7j+vNfNU2H1dy+HdMRaxXzD5dy0aWnHvuADaqEXKgW:g8QeYAu9fto70h9pMRCXv/IWHXXQK5
TLSH	T1043733E07A0D9C36C490EB7FABE45768B062F3F3DC6187AC21D3960B266B55293510BD
TrID	67.3% (.EXE) UPX compressed Win32 Executable (27066/9/6) 12.5% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.1% (.ICL) Windows Icons Library (generic) (2059/9) 5.0% (.EXE) OS/2 Executable (generic) (2029/13) 4.9% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
Reporter	SecuriteInfoCom
Tags:	CoinMiner exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

xmrig

ID:

File name:

rl_99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718

Verdict:

Malicious activity

Analysis date:

2025-07-02 04:32:40 UTC

Tags:

upx winring0x64-sys vuln-driver miner xor-url generic xmrig

Link:

https://app.any.run/tasks/9bf3b1e7-5ec4-44d0-8e54-d9dcf07c354b

Note:

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

Detection:

R77

Link:

https://www.capesandbox.com/analysis/11908/

Detection(s):

SecuriteInfo.com.FileRepMalware.27738.2925.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6864b4cc900df8e7f8654d68

Tags:

coinminer xmrig crypt miner

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Running batch commands

Launching a process

Using the Windows Management Instrumentation requests

Creating a file in the Program Files subdirectories

Creating a file in the %temp% directory

Creating a process from a recently created file

Possible injection to a system process

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Unauthorized injection to a system process

Using obfuscated Powershell scripts

Verdict:

Malicious

Labled as:

Whisperer.1.Generic

Link:

https://www.hybrid-analysis.com/sample/99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718

Score:

98%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PE (Portable Executable) Win 64 Exe x64

Link:

https://app.malva.re/file/8f263b4d2d90b9bd53c73361ff395339

Gathering data

Threat name:

Win64.Trojan.Whisperer

Status:

Malicious

First seen:

2025-07-01 23:19:13 UTC

File Type:

PE+ (Exe)

Extracted files:

AV detection:

25 of 38 (65.79%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=tg5jy2wth3mzpp753bo5jyptycqdkb3tfxjuc4j4i2cypffwy4ma._file

Result

Malware family:

n/a

Score:

10/10

Tags:

defense_evasion discovery execution persistence upx

Link:

https://tria.ge/reports/250702-e172fssscz/

Behaviour

Checks processor information in registry

Detects videocard installed

Enumerates system info in registry

Modifies data under HKEY_USERS

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

System Location Discovery: System Language Discovery

Drops file in Program Files directory

Drops file in System32 directory

Suspicious use of SetThreadContext

UPX packed file

Power Settings

Executes dropped EXE

Indicator Removal: Clear Windows Event Logs

Command and Scripting Interpreter: PowerShell

Suspicious use of NtCreateUserProcessOtherParentProcess

Verdict:

Unknown

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/5f20f625-e697-48cb-a220-349f0378a53c

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.14

Link:

https://yomi.yoroi.company/submissions/99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718

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:	botnet_plaintext_c2 Create hunting rule
Author:	cip
Description:	Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.

Rule name:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

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

Rule name:	Indicator_MiniDumpWriteDump Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references

Rule name:	MALWARE_Win_R77 Create hunting rule
Author:	ditekSHen
Description:	Detects r77 rootkit

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

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	ProgramLanguage_Rust Create hunting rule
Author:	albertzsigovits
Description:	Application written in Rust programming language

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:	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:	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)

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

Rule name:	upx_largefile Create hunting rule
Author:	k3nr9

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

Rule name:	WarpStrings Create hunting rule
Author:	Seth Hardy
Description:	Warp Identifying Strings

Rule name:	Windows_Rootkit_R77_d0367e28 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/elastic-security-labs-steps-through-the-r77-rootkit

File information

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

Web download

CoinMiner

exe 99ba9c6ad33ed997bffdd85dd4e1f3c0a03507732dd341713c46858794b6c718

(this sample)

Cape

https://www.capesandbox.com/analysis/11908/

URLhaus

https://urlhaus.abuse.ch/url/3573558/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3573559/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high
CHECK_TRUST_INFO	Requires Elevated Execution (level:requireAdministrator)	high

Reviews

ID	Capabilities	Evidence
WIN_BASE_API	Uses Win Base API	KERNEL32.DLL::LoadLibraryA

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