MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0. 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: 17

Intelligence 17 IOCs YARA 4 File information Comments

SHA256 hash:	c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0
SHA3-384 hash:	0652bfda467790124d24dfcdb907507a501dd61ddc36085a28031409b65e031987e4709674dd562f85f26eba0b4463a6
SHA1 hash:	4f50f7f954ed27b8e3373a5d900905d98d1bb51e
MD5 hash:	be20dfffcba37064d6087aa714036873
humanhash:	yellow-sink-north-illinois
File name:	c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	921'600 bytes
First seen:	2025-01-10 14:40:16 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	fc6683d30d9f25244a50fd5357825e79 (92 x Formbook, 52 x AgentTesla, 23 x SnakeKeylogger)
ssdeep	24576:0rl6kD68JmlotQf1nQr8zKS7ifTcvt2S3Sc1YNTN:Cl328U2yfuo2hfwvtJCxT
Threatray	157 similar samples on MalwareBazaar
TLSH	T1F815238BB9D22547D926FEB704230C54C7EBBE1979B87205486F3E1696B3293203B51F
TrID	31.3% (.EXE) UPX compressed Win32 Executable (27066/9/6) 30.7% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 12.1% (.EXE) Win64 Executable (generic) (10522/11/4) 7.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 5.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika	pebin
File icon (PE):
dhash icon	130f0b0f372b3337 (3 x SnakeKeylogger, 2 x RemcosRAT, 1 x MassLogger)
Reporter	adrian__luca
Tags:	exe RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

191

Origin country :

Vendor Threat Intelligence

Malware family:

remcos

ID:

File name:

c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0

Verdict:

Malicious activity

Analysis date:

2025-01-10 20:50:31 UTC

Tags:

rat remcos evasion autoit upx

Link:

https://app.any.run/tasks/44c44dae-5861-43a5-930b-9da0d274efd0

Note:

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

Verdict:

Malicious

Score:

90.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=678131782c8240e189bb90a0

Tags:

autorun remo

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Creating a file in the %temp% directory

Creating a file

Creating a process from a recently created file

Сreating synchronization primitives

Connection attempt

Sending a custom TCP request

DNS request

Reading critical registry keys

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Stealing user critical data

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-debug autoit compiled-script evasive extrac32 fingerprint hacktool lolbin microsoft_visual_cc packed packed packed packer_detected pcalua remcos upx

Link:

https://www.filescan.io/uploads/6781318010df0fde5dd4163a/reports/1814c5f6-e2f7-4e01-b367-e552cb375d9f/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0

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/eaacb5ed-fb46-44d1-a5a9-41b624637ea4

Result

Threat name:

Remcos

Detection:

malicious

Classification:

rans.troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1588244

Behaviour

Behavior Graph:

n/a

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0/

Threat name:

Win32.Backdoor.Remcos

Status:

Malicious

First seen:

2024-12-10 03:43:52 UTC

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zceuin4g3rl4fbfeb7i2s5slvuxqe2umedqzcbmxa7iwi37zghqa._file

Verdict:

malicious

Label(s):

remcos

unknown_loader_036

RemcosRAT

ae7dd99d6214b35fe4d225dd782ca41714ffd0b637d8db40fbb887e00807d288

RemcosRAT

b326ee834d3e9c27a5712b91bf28ac789ea8f715dfd17cca0cd6d0cc5ef18c9f

RemcosRAT

b3a40331524394846d2782f1e52e1410ce1681283f8c715373bab73c84fa30ec

RemcosRAT

b6331431d23acf4528527316a993890117bac208c604b054622efee21cbffcf5

RemcosRAT

dec26f7cc646acdff30d90fae8837623c70870ed0cc9020930f95b53b6b730db

RemcosRAT

error

RemcosRAT

+ 147 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:remotehost collection discovery rat spyware stealer upx

Link:

https://tria.ge/reports/250110-r1z23azkck/

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

UPX packed file

Accesses Microsoft Outlook accounts

Drops startup file

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Detected Nirsoft tools

NirSoft MailPassView

NirSoft WebBrowserPassView

Remcos

Remcos family

Malware Config

C2 Extraction:

192.210.150.26:3678

Verdict:

Malicious

Tags:

trojan remcos

YARA:

SUSP_Imphash_Mar23_3

Link:

https://app.threat.zone/submission/1d5d8316-056a-4934-8118-73f50eed9c4c

Unpacked files

SH256 hash:

ca6fb9ec96709e1e75ac9218429f88bba1dbed403e7eadec6e1f6f0a9c9f699a

MD5 hash:

55a1f35086faf3b3f794f157c8a7e05d

SHA1 hash:

ac38dc05cbbf83ec46460b6dc9622b34fd3937c5

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/f8bc30e4-2c7d-460d-961b-eda1a4234f9d/

SH256 hash:

e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5

MD5 hash:

575d16384315352aa0a0b0eab3a62b6c

SHA1 hash:

2bd99b62a965febf54c0e72a1afee93c12f135b6

Detections:

Remcos

win_remcos_auto

win_remcos_w0

malware_windows_remcos_rat

win_remcos_rat_unpacked

INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Link:

https://www.unpac.me/results/f8bc30e4-2c7d-460d-961b-eda1a4234f9d/

Parent samples :

0e27dd330bbcbe143cb6e1effca5d05625dbc7e4eaac5ad46f2613a510a0f692
e9077ad335bfe27a3217406b06411f96d66e7af4bd59e21ba88f1b6c59cd24b5
c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0
0d9239013e7f6fab8aab618ce46b5225d0283da9f81d937cae7a3988a127f879
aa9743c31bf710bcabc63c6ad8f5a807ab12316eedd73feed1d043b39c7a7346

SH256 hash:

c889443786dc57c284a40fd1a9764bad2f026a8c20e191059707d1646ff931e0

MD5 hash:

be20dfffcba37064d6087aa714036873

SHA1 hash:

4f50f7f954ed27b8e3373a5d900905d98d1bb51e

Link:

https://www.unpac.me/results/f8bc30e4-2c7d-460d-961b-eda1a4234f9d/

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/c889443786dc/report/overview.html

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

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:	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

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:	UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser Create hunting rule
Author:	malware-lu

Rule name:	upx_largefile Create hunting rule
Author:	k3nr9

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

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::GetAce
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::timeGetTime
WIN_BASE_API	Uses Win Base API	KERNEL32.DLL::LoadLibraryA
WIN_NETWORK_API	Supports Windows Networking	MPR.dll::WNetUseConnectionW

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