MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6. 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: 18

Intelligence 18 IOCs YARA File information Comments

SHA256 hash:	c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6
SHA3-384 hash:	efbbd2f8d4c29218e9a2e0c2ff6749481a40141c82c99abfaef4d1f5d73f7395accb44fa719ffe35d30d919e275d9483
SHA1 hash:	7ac9ad6a60cc685b24f65ba7715c2a85387eff62
MD5 hash:	160c2784d173e7bb077ff0794a922488
humanhash:	gee-magnesium-fourteen-hotel
File name:	1732748284fd56a2da13edf4ae4b865c44fa6834581d27eb2edbfe3fc50ef131cb95db5639506.dat-decoded
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	493'056 bytes
First seen:	2024-11-27 22:58:06 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	e77512f955eaf60ccff45e02d69234de (138 x RemcosRAT)
ssdeep	12288:3uD09AUkNIGBYYv4eK13x13nZHSRVMf139F5wIB7+IwtHwBtVxbesvZDSl+DY:q09AfNIEYsunZvZ19Z2s
Threatray	81 similar samples on MalwareBazaar
TLSH	T138A4BF01B6D2C072D57625300D26E775DEBDBD212835897BB3DA1D67FE30180E63AAB2
TrID	32.2% (.EXE) Win64 Executable (generic) (10522/11/4) 20.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 15.4% (.EXE) Win16 NE executable (generic) (5038/12/1) 13.7% (.EXE) Win32 Executable (generic) (4504/4/1) 6.2% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
File icon (PE):
dhash icon	c4d48eaa8ad4d4f8 (1'000 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter	abuse_ch
Tags:	base64-decoded exe RemcosRAT

abuse_ch

Malware dropped as base64 encoded payload

Intelligence

File Origin

# of uploads :

# of downloads :

522

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

1732748284fd56a2da13edf4ae4b865c44fa6834581d27eb2edbfe3fc50ef131cb95db5639506.dat-decoded

Verdict:

Malicious activity

Analysis date:

2024-11-27 22:59:29 UTC

Tags:

rat remcos remote evasion

Link:

https://app.any.run/tasks/7474bb1d-2223-457e-aa3b-8a91116a3db8

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=6747a5f3d0583382434b8993

Tags:

ransomware dropper remcos keylog

Result

Verdict:

Clean

Maliciousness:

Behaviour

Сreating synchronization primitives

Setting a keyboard event handler

DNS request

Connection attempt

Sending a custom TCP request

Sending an HTTP GET request

Creating a file

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

cmd crypto evasive exploit explorer fingerprint fingerprint keylogger lolbin microsoft_visual_cc packed rat remcos windows

Link:

https://www.filescan.io/uploads/6747a43b4759c792deb65b8c/reports/ecee4406-e1de-4ec2-8041-c5db88b32c68/overview

Verdict:

Malicious

Labled as:

Remcos.Generic

Link:

https://www.hybrid-analysis.com/sample/c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6

Malware family:

REMCOS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/761444f4-e8a8-4742-b1b4-bf825ed7676e

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1564220

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

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 submitted file

Sigma detected: Remcos

Suricata IDS alerts for network traffic

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/c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6/

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2024-11-27 22:59:04 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ypopbo4pdkkqn3afrqfxb4ztlybnh2oyhjpdv43qxel4bf7rsg3a._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

4d4b203f72413a42a31be62977b8a6508e7f04f9192913c432ab456b15fc3004

RemcosRAT

958e5d7947f48f2047ac3c595ee724a916c9969430731091ac1b9fcfaaf65d70

RemcosRAT

ae7dd99d6214b35fe4d225dd782ca41714ffd0b637d8db40fbb887e00807d288

RemcosRAT

b3a40331524394846d2782f1e52e1410ce1681283f8c715373bab73c84fa30ec

RemcosRAT

dcbcfe00290d92cfea7ff37d322cf80991016d6379888cdaf27451c6543a894c

RemcosRAT

error

RemcosRAT

+ 71 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:remotehost discovery

Link:

https://tria.ge/reports/241127-2yc5mazrdn/

Behaviour

Suspicious use of SetWindowsHookEx

System Location Discovery: System Language Discovery

Malware Config

C2 Extraction:

rxsas.duckdns.org:57870

Verdict:

Malicious

Tags:

rat remcos Win.Trojan.Remcos-9841897-0

YARA:

malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22 Remcos

Link:

https://app.threat.zone/submission/3febe636-d040-4667-80e8-7b463c3965f1

Unpacked files

SH256 hash:

c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6

MD5 hash:

160c2784d173e7bb077ff0794a922488

SHA1 hash:

7ac9ad6a60cc685b24f65ba7715c2a85387eff62

Detections:

Remcos

win_remcos_auto

win_remcos_w0

Link:

https://www.unpac.me/results/0f4f56c6-c170-4cac-b07e-d647d320ead4/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c3dcf0bb8f1a/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/c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6

File information

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

fd56a2da13edf4ae4b865c44fa6834581d27eb2edbfe3fc50ef131cb95db5639

RemcosRAT

exe c3dcf0bb8f1a9506ec058c0b70f3335e02d3e9d83a5e3af370b917c097f191b6

(this sample)

Dropped by

SHA256 fd56a2da13edf4ae4b865c44fa6834581d27eb2edbfe3fc50ef131cb95db5639

Dropped by

MD5 92fced3da23cdf29654b439d2cfed130

URLhaus

https://urlhaus.abuse.ch/url/3309514/

Delivery method

Distributed via web download

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::GdipGetImageEncoders gdiplus.dll::GdipGetImageEncodersSize 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::LoadLibraryA KERNEL32.dll::LoadLibraryExW 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::CreateFileW KERNEL32.dll::DeleteFileW KERNEL32.dll::DeleteFileA KERNEL32.dll::MoveFileExW KERNEL32.dll::MoveFileW
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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