MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746. 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: 19

Intelligence 19 IOCs YARA 23 File information Comments

SHA256 hash:	199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746
SHA3-384 hash:	d6bd6551594e38e6717ed626c64c77cb607cbe3d3e21b5b6d7d713dcf1eb192b5a441766df0f75de36c81614f5cb915b
SHA1 hash:	1c568323c4db0536fcc1afa969cf77abab6341d0
MD5 hash:	4bc6f1e5964b73ff7f085f61890c647e
humanhash:	eight-echo-oranges-cola
File name:	199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	533'504 bytes
First seen:	2024-07-27 15:59:05 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	8d5087ff5de35c3fbb9f212b47d63cad (170 x RemcosRAT)
ssdeep	6144:AXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZoAX0cN55Gv:AX7tPMK8ctGe4Dzl4h2QnuPs/ZoIcv
Threatray	4'325 similar samples on MalwareBazaar
TLSH	T1B7B49E01BAD1C072D57514300D3AF776EAB8BD2028364A7BB3D61D5BFE31190B62A6B7
TrID	52.9% (.EXE) Win32 Executable (generic) (4504/4/1) 23.5% (.EXE) Generic Win/DOS Executable (2002/3) 23.5% (.EXE) DOS Executable Generic (2000/1)
File icon (PE):
dhash icon	c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter	nickkuechel
Tags:	exe RAT remcos RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

400

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746.exe

Verdict:

Malicious activity

Analysis date:

2024-07-28 10:06:13 UTC

Tags:

keylogger rat remcos remote

Link:

https://app.any.run/tasks/e500e5de-056e-4d94-b516-8ed3861d3e36

Note:

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

Detection(s):

Win.Trojan.Remcos-9841897-0

Win.Trojan.Remcos-10002580-0

Verdict:

Malicious

Score:

99.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66a5198546f80f37dcaa7ed3

Tags:

Encryption Infostealer Network Stealth Remcos

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Setting a keyboard event handler

DNS request

Connection attempt

Creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

crypto epmicrosoft_visual_cc evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc overlay remcos shell32

Link:

https://www.filescan.io/uploads/66a519854c5c17942a7edf29/reports/2f281f1b-e90b-401e-a223-2dfb82788496/overview

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.

Malware family:

REMCOS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/68352a80-ea90-4660-aa19-6d786786df39

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1483478

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to bypass UAC (CMSTPLUA)

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

Found malware configuration

Installs a global keyboard hook

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Sigma detected: Remcos

Uses dynamic DNS services

Yara detected Remcos RAT

Yara detected UAC Bypass using CMSTP

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746/

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2024-07-22 08:09:03 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

24 of 24 (100.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=dgowik7sb223tluytpjioj2xwgiynigfpgubme5stvsntsmsu5da._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

a0c4a547b08cd4669362420f9c50b04f084e0174f13911f4e8b95cec7ba12cd8

RemcosRAT

a9ad4072875b4858f0e89f118d27066cbbba11aae141f4a44c1783e5448bc4a9

RemcosRAT

ab4c9b244a1604655032a8f69acc4273265fa35337906e05a1dc2b274b3b13a6

RemcosRAT

b6eedb3e8a594bc26e68d34f345e0cb276a247458e326bf71276fa93cab52357

RemcosRAT

fcc20fe90b357bafc8ac88a33981885be904b1ce430a4ec8b8aed5caa357df92

RemcosRAT

+ 4'315 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:july 16 discovery

Link:

https://tria.ge/reports/240727-tfmx4szerg/

Behaviour

Suspicious use of SetWindowsHookEx

System Location Discovery: System Language Discovery

Malware Config

C2 Extraction:

luky00921.ddns.net:6089

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/557ccc5e-7089-428a-8b1c-007590be3669

Unpacked files

SH256 hash:

199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746

MD5 hash:

4bc6f1e5964b73ff7f085f61890c647e

SHA1 hash:

1c568323c4db0536fcc1afa969cf77abab6341d0

Detections:

Remcos

win_remcos_auto

win_remcos_w0

malware_windows_remcos_rat

Link:

https://www.unpac.me/results/f978ab6f-5012-4856-86b7-384983a49cbb/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/199d642bf20e/report/overview.html

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/199d642bf20eb5b9ae989bd2872757b19186a0c579a81613b29d64d9c992a746

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

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

Rule name:	iexplorer_remcos Create hunting rule
Author:	iam-py-test
Description:	Detect iexplorer being taken over by Remcos

Rule name:	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM Create hunting rule
Author:	ditekSHen
Description:	Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	Remcos Create hunting rule
Author:	kevoreilly
Description:	Remcos Payload

Rule name:	REMCOS_RAT_variants Create hunting rule

Rule name:	Remcos_unpacked_PulseIntel Create hunting rule
Author:	PulseIntel
Description:	Remcos Payload

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

Rule name:	Windows_Trojan_Remcos_b296e965 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set

Rule name:	win_remcos_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.remcos.

Rule name:	win_remcos_rat_unpacked Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	win_remcos_w0 Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Detects strings present in remcos rat Samples.

Rule name:	yarahub_win_remcos_rat_unpacked_aug_2023 Create hunting rule
Author:	Matthew @ Embee_Research

File information

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

No further information available

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
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
GDI_PLUS_API	Interfaces with Graphics	gdiplus.dll::GdiplusStartup gdiplus.dll::GdipGetImageEncodersSize gdiplus.dll::GdipGetImageEncoders gdiplus.dll::GdipAlloc
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringA WINMM.dll::mciSendStringW WINMM.dll::PlaySoundW WINMM.dll::waveInAddBuffer WINMM.dll::waveInClose WINMM.dll::waveInOpen
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AdjustTokenPrivileges
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExA SHELL32.dll::ShellExecuteW
URL_MONIKERS_API	Can Download & Execute components	urlmon.dll::URLDownloadToFileW urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle WININET.dll::InternetCloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::FindFirstVolumeW KERNEL32.dll::FindNextVolumeW KERNEL32.dll::LoadLibraryExW KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetDriveTypeA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AllocConsole KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetConsoleOutputCP KERNEL32.dll::SetConsoleTextAttribute KERNEL32.dll::SetStdHandle
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileMappingW KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::DeleteFileA
WIN_BASE_USER_API	Retrieves Account Information	ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LookupPrivilegeValueA KERNEL32.dll::QueryDosDeviceW
WIN_CRYPT_API	Uses Windows Crypt API	ADVAPI32.dll::CryptAcquireContextA ADVAPI32.dll::CryptGenRandom
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyA ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegCreateKeyW ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_API	Can Manipulate Windows Services	ADVAPI32.dll::ChangeServiceConfigW ADVAPI32.dll::ControlService ADVAPI32.dll::OpenSCManagerW ADVAPI32.dll::OpenSCManagerA ADVAPI32.dll::OpenServiceW ADVAPI32.dll::QueryServiceConfigW
WIN_USER_API	Performs GUI Actions	USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::OpenClipboard USER32.dll::CreateWindowExA

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