MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba
SHA3-384 hash: 067e6ba754a51fcf803d12f20a8121e4016674b414c3335fe2c47c30f4da56beca9f6f456861a984d611aa7856570638
SHA1 hash: 0952a34cffd6ab444ed21889e0fa5eac6019ac5a
MD5 hash: fce908c3d656198dce6bafb77f0b9638
humanhash: friend-fruit-uncle-ten
File name:SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:991'744 bytes
First seen:2024-09-04 17:56:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:2d0NXLNiM0oqUO2rMQvQtcRyzCKBCDZvtcVRUyDWrwye9UIZq6UrN5GMAYr2ao0q:nbNiMN17rMtcoa22yDWrwye9XZq641o
TLSH T1DA25126437A9D513C71862B80AF1F1B813BC5EECB801D3938FED6DAB79A6B185D00593
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon 5454445454545454 (5 x Formbook, 4 x AgentTesla, 2 x SnakeKeylogger)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
402
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927
Verdict:
Malicious activity
Analysis date:
2024-09-04 18:01:22 UTC
Tags:
rat remcos keylogger stealer
Link:
https://app.any.run/tasks/c4be669e-87c4-40b1-a21b-293332517e4d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.1762.1062.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d89f72f3d7ccf99f8ff903
Tags:
Discovery Infostealer Network Static Stealth Msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/66d89f6e2d3bce34c7544642/reports/e58a53c1-65f1-4d62-9abc-3af6ca4995c1/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba
Result
Verdict:
UNKNOWN
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/08c278f9-0d70-4244-a439-79e48678a2ba
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1504346
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
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
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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 submitted file
Sigma detected: Remcos
Suricata IDS alerts for network traffic
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)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1504346 Sample: SecuriteInfo.com.Trojan.Pac... Startdate: 04/09/2024 Architecture: WINDOWS Score: 100 30 magaji.duckdns.org 2->30 32 15.164.165.52.in-addr.arpa 2->32 34 geoplugin.net 2->34 46 Suricata IDS alerts for network traffic 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 54 10 other signatures 2->54 8 SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927.exe 3 2->8         started        signatures3 52 Uses dynamic DNS services 30->52 process4 file5 26 SecuriteInfo.com.T....3323.24927.exe.log, ASCII 8->26 dropped 56 Contains functionality to bypass UAC (CMSTPLUA) 8->56 58 Tries to steal Mail credentials (via file registry) 8->58 60 Contains functionalty to change the wallpaper 8->60 62 6 other signatures 8->62 12 SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927.exe 3 15 8->12         started        signatures6 process7 dnsIp8 36 103.186.117.57, 2404, 64088, 64089 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 12->36 38 geoplugin.net 178.237.33.50, 65477, 80 ATOM86-ASATOM86NL Netherlands 12->38 28 C:\ProgramData\remcos\logs.dat, data 12->28 dropped 64 Detected Remcos RAT 12->64 66 Maps a DLL or memory area into another process 12->66 68 Installs a global keyboard hook 12->68 17 SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927.exe 1 12->17         started        20 SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927.exe 1 12->20         started        22 SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927.exe 2 12->22         started        24 SecuriteInfo.com.Trojan.PackedNET.3042.3323.24927.exe 12->24         started        file9 signatures10 process11 signatures12 40 Tries to steal Instant Messenger accounts or passwords 17->40 42 Tries to steal Mail credentials (via file / registry access) 17->42 44 Tries to harvest and steal browser information (history, passwords, etc) 20->44
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Suspicious
First seen:
2024-09-04 17:55:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
15 of 38 (39.47%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rnguhzns76p6fwiv3ks4rbedfxiggwzdcj2cg272jbr5aiqnj25a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection credential_access discovery rat spyware stealer
Link:
https://tria.ge/reports/240904-wjkm9sthqq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Reads user/profile data of web browsers
Credentials from Password Stores: Credentials from Web Browsers
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Malware Config
C2 Extraction:
magaji.duckdns.org:2404
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/365dc9c3-cb92-450e-b9bf-9ab02cc3fba6
Unpacked files
SH256 hash:
150c6e7de31574a3dc8c09d743987ec2c43c9bd0e6aecbf91042722359e3adc0
MD5 hash:
48815524d9fe314ab98f8df0b182908f
SHA1 hash:
a0e4dded97841cded11dce2a1b84670be882f22c
Link:
https://www.unpac.me/results/2cc467b2-f751-4ee1-9f26-d687c2a337a8/
SH256 hash:
1d47e076f4581d4ba8b8ed54fb15c83e7c65f7b514e6b7a59f2eda990896b92d
MD5 hash:
30f0a452d1db64a7e4db909e7de34d33
SHA1 hash:
7687cc6017a608a86a560315b0b78a35c58ad7ba
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
win_remcos_w0
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
Link:
https://www.unpac.me/results/2cc467b2-f751-4ee1-9f26-d687c2a337a8/
Parent samples :
4eaacedcb5c204340fb5b45bbf5b625f8951efdb4a4035b9b621d07880bd0002
8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba
SH256 hash:
389936ceb4508c4067c3853cd17cad6e09b02c7b351cbab14defbf643d5477ed
MD5 hash:
ba0095308c713b34620e3be138df7a51
SHA1 hash:
1f58c6ecf654ef933e3898ee7529c411205b338d
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2cc467b2-f751-4ee1-9f26-d687c2a337a8/
SH256 hash:
8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba
MD5 hash:
fce908c3d656198dce6bafb77f0b9638
SHA1 hash:
0952a34cffd6ab444ed21889e0fa5eac6019ac5a
Link:
https://www.unpac.me/results/2cc467b2-f751-4ee1-9f26-d687c2a337a8/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8b4d43e5b2ff/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/8b4d43e5b2ff9fe2d915daa5c884832dd0635b231274236bfa4863d0220d4eba

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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