MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36. 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

RemcosRAT

Vendor detections: 16

Intelligence 16 IOCs YARA 4 File information Comments 1

SHA256 hash:	d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36
SHA3-384 hash:	15a83cd14803b31c47d1440735b3a16e89d854ac176ed2189130c81d77df911f333da327b9eabaa74886ec170a378115
SHA1 hash:	f4a663d69419e1cdef4d31ae003c89f6c19f23c0
MD5 hash:	6539c2c942c9aa3ab9c7fe14fccf0b4e
humanhash:	crazy-two-freddie-fruit
File name:	6539c2c942c9aa3ab9c7fe14fccf0b4e
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	1'290'752 bytes
First seen:	2024-10-12 15:16:07 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	afcdf79be1557326c854b6e20cb900a7 (1'102 x FormBook, 936 x AgentTesla, 399 x RemcosRAT)
ssdeep	24576:WCdxte/80jYLT3U1jfsWaNuPcgCOCYdVtL/JAc/RhmTO/wQ:fw80cTsjkWaNecFOCYDljmyL
TLSH	T1E755CF2273DDC360CB769173BF69B7012EBF78614630B95B2F880D7DA950161262DBA3
TrID	63.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 11.6% (.EXE) Win64 Executable (generic) (10522/11/4) 7.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 5.5% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.9% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
File icon (PE):
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	zbetcheckin
Tags:	32 exe RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

403

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

6539c2c942c9aa3ab9c7fe14fccf0b4e

Verdict:

Malicious activity

Analysis date:

2024-10-12 16:09:18 UTC

Tags:

snake keylogger

Link:

https://app.any.run/tasks/321a3f44-aa44-45f7-a537-7fcf444e1172

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.PWS.Stealer.19347.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=670a92f01d4ef219fa61a2aa

Tags:

Autorun Autoit Emotet

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32

Link:

https://www.filescan.io/uploads/670a938d0ce4bdf60f197dad/reports/9099adc8-0194-40a8-a51f-31f4fac029b7/overview

Verdict:

Malicious

Labled as:

AIT.Shadow.11.7D02876C

Link:

https://www.hybrid-analysis.com/sample/d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/b3e80c2f-dc9a-4d56-9c80-d963b05d07dc

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.phis.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1532200

Signature

AI detected suspicious sample

Binary is likely a compiled AutoIt script file

C2 URLs / IPs found in malware configuration

Contains functionality to bypass UAC (CMSTPLUA)

Contains functionality to inject code into remote processes

Contains functionality to register a low level keyboard hook

Contains functionality to steal Chrome passwords or cookies

Contains functionality to steal Firefox passwords or cookies

Contains functionalty to change the wallpaper

Delayed program exit found

Detected Remcos RAT

Drops VBS files to the startup folder

Found malware configuration

Machine Learning detection for dropped file

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Sigma detected: Drops script at startup location

Sigma detected: Remcos

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

System process connects to network (likely due to code injection or exploit)

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Instant Messenger accounts or passwords

Tries to steal Mail credentials (via file / registry access)

Tries to steal Mail credentials (via file registry)

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Writes to foreign memory regions

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Yara detected WebBrowserPassView password recovery tool

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36/

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2024-10-12 15:17:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=3gh2mjnjfr4qia7ol6f6skeurbk6ui5isizbzr6sdgev2p23dq3a._file

Verdict:

malicious

Label(s):

unknown_loader_036

remcos

Similar samples:

error

RemcosRAT

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:newest collection discovery rat

Link:

https://tria.ge/reports/241012-sn1y9s1fmq/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

AutoIT Executable

Suspicious use of SetThreadContext

Accesses Microsoft Outlook accounts

Drops startup file

Executes dropped EXE

Loads dropped DLL

Detected Nirsoft tools

NirSoft MailPassView

NirSoft WebBrowserPassView

Remcos

Malware Config

C2 Extraction:

107.173.4.16:2404

Verdict:

Malicious

Tags:

trojan remcos

YARA:

SUSP_Imphash_Mar23_3

Link:

https://app.threat.zone/submission/0bc32ff4-4484-403e-add9-c7b275aca3d5

Unpacked files

SH256 hash:

3db71bf3b373ee902511a5e13bed3e2038006dabdb564a880b4ac2ea854f1e79

MD5 hash:

14a37d2b336d4b2cddf719d810ad0d46

SHA1 hash:

7dd0010c4514221bf63805914b858846a23ed46e

Detections:

Remcos

win_remcos_auto

win_remcos_w0

malware_windows_remcos_rat

INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

win_remcos_rat_unpacked

Link:

https://www.unpac.me/results/95396246-aa48-486f-85aa-f5eb07e3d628/

SH256 hash:

d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36

MD5 hash:

6539c2c942c9aa3ab9c7fe14fccf0b4e

SHA1 hash:

f4a663d69419e1cdef4d31ae003c89f6c19f23c0

Detections:

AutoIT_Compiled

SUSP_Imphash_Mar23_3

Link:

https://www.unpac.me/results/95396246-aa48-486f-85aa-f5eb07e3d628/

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/d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36

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:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

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

Rule name:	SUSP_Imphash_Mar23_3 Create hunting rule
Author:	Arnim Rupp (https://github.com/ruppde)
Description:	Detects imphash often found in malware samples (Maximum 0,25% hits with search for 'imphash:x p:0' on Virustotal) = 99,75% hits
Reference:	Internal Research

File information

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

Web download

RemcosRAT

exe d98fa625a92c790403ee5f8be928948855ea23a892321cc7d219895d3f5b1c36

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3231628/

URLhaus

https://urlhaus.abuse.ch/url/3232472/

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 (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::AllocateAndInitializeSid ADVAPI32.dll::CopySid ADVAPI32.dll::FreeSid ADVAPI32.dll::GetLengthSid ADVAPI32.dll::GetTokenInformation ADVAPI32.dll::GetAce
COM_BASE_API	Can Download & Execute components	ole32.dll::CLSIDFromProgID ole32.dll::CoCreateInstance ole32.dll::CoCreateInstanceEx ole32.dll::CoInitializeSecurity ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringW WINMM.dll::timeGetTime WINMM.dll::waveOutSetVolume
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AddAce ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::CheckTokenMembership ADVAPI32.dll::DuplicateTokenEx ADVAPI32.dll::GetAclInformation ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExW SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW
WIN32_PROCESS_API	Can Create Process and Threads	ADVAPI32.dll::CreateProcessAsUserW KERNEL32.dll::CreateProcessW ADVAPI32.dll::CreateProcessWithLogonW KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken ADVAPI32.dll::OpenThreadToken
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::SetSystemPowerState KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileExW KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateHardLinkW IPHLPAPI.DLL::IcmpCreateFile KERNEL32.dll::CreateFileW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameW ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LogonUserW ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_API	Supports Windows Networking	MPR.dll::WNetAddConnection2W MPR.dll::WNetUseConnectionW
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegConnectRegistryW ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_USER_API	Performs GUI Actions	USER32.dll::BlockInput USER32.dll::CloseDesktop USER32.dll::CreateMenu USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::FindWindowW

Comments

Login required

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

zbet commented on 2024-10-12 15:16:08 UTC

url : hxxp://104.168.7.25/450/taskhostw.exe