MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5. 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: 20


Intelligence 20 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
SHA3-384 hash: 30b9c7d52d26593ce2e3fcd64901b16b5984ec121872769003dd29cd1d013ed72a768d146487828fbd374b43f7711fe8
SHA1 hash: 4ccf3c9a339146008c1d8466857e13d3c7752a05
MD5 hash: 571902de75705d1aeaa32be01459dc65
humanhash: wisconsin-harry-nebraska-comet
File name:Quotation_pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:904'704 bytes
First seen:2024-09-23 14:18:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:kBGzjcJ6NacNEyNOU+6cNuuH2SNcjmYY4Swv:kE86N1l5x8uuWSpYXS2
Threatray 4'268 similar samples on MalwareBazaar
TLSH T1A6152360B6B4DD5BC1AF2AFF4926C402D3726692C892F5EF4C8540CE55D2F930F5262B
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 30ecd09898c2c6b8 (1 x RemcosRAT)
Reporter James_inthe_box
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
401
Origin country :
US US
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Quotation_pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-09-23 14:40:48 UTC
Tags:
netreactor rat remcos remote evasion
Link:
https://app.any.run/tasks/f4229dc3-6c91-470f-8e44-3ee34e7333c2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.8673.6058.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66f178d75346c7b922ad41d7
Tags:
Discovery Execution Infostealer Network Stealth Kryptik Underscore Monitor Licat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Connection attempt
DNS request
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/66f178e03d941253072895e8/reports/229867bb-fc6f-48c4-ab24-1dddb75702ce/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/27e987d3-3d6c-4eb4-a111-e11ef99c4b74
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1515946
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
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
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Loading BitLocker PowerShell Module
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
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
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1515946 Sample: Quotation_pdf.exe Startdate: 23/09/2024 Architecture: WINDOWS Score: 100 60 nnamoo.duckdns.org 2->60 62 geoplugin.net 2->62 76 Suricata IDS alerts for network traffic 2->76 78 Found malware configuration 2->78 80 Malicious sample detected (through community Yara rule) 2->80 84 15 other signatures 2->84 8 Quotation_pdf.exe 7 2->8         started        12 efsOOkOP.exe 5 2->12         started        signatures3 82 Uses dynamic DNS services 60->82 process4 file5 50 C:\Users\user\AppData\Roaming\efsOOkOP.exe, PE32 8->50 dropped 52 C:\Users\...\efsOOkOP.exe:Zone.Identifier, ASCII 8->52 dropped 54 C:\Users\user\AppData\Local\...\tmp96D7.tmp, XML 8->54 dropped 56 C:\Users\user\...\Quotation_pdf.exe.log, ASCII 8->56 dropped 86 Tries to steal Mail credentials (via file registry) 8->86 88 Uses schtasks.exe or at.exe to add and modify task schedules 8->88 90 Adds a directory exclusion to Windows Defender 8->90 92 Injects a PE file into a foreign processes 8->92 14 Quotation_pdf.exe 2 15 8->14         started        19 powershell.exe 23 8->19         started        21 powershell.exe 23 8->21         started        23 schtasks.exe 1 8->23         started        94 Multi AV Scanner detection for dropped file 12->94 96 Contains functionalty to change the wallpaper 12->96 98 Machine Learning detection for dropped file 12->98 100 4 other signatures 12->100 25 efsOOkOP.exe 12->25         started        27 schtasks.exe 12->27         started        29 svchost.exe 12->29         started        signatures6 process7 dnsIp8 64 nnamoo.duckdns.org 103.186.117.126, 49715, 49732, 49733 AARNET-AS-APAustralianAcademicandResearchNetworkAARNe unknown 14->64 66 geoplugin.net 178.237.33.50, 49718, 80 ATOM86-ASATOM86NL Netherlands 14->66 68 127.0.0.1 unknown unknown 14->68 58 C:\Users\user\...58namoo VIP SNAKE.exe, PE32 14->58 dropped 70 Detected Remcos RAT 14->70 72 Maps a DLL or memory area into another process 14->72 31 Quotation_pdf.exe 14->31         started        34 Quotation_pdf.exe 14->34         started        36 Quotation_pdf.exe 14->36         started        48 2 other processes 14->48 74 Loading BitLocker PowerShell Module 19->74 38 WmiPrvSE.exe 19->38         started        40 conhost.exe 19->40         started        42 conhost.exe 21->42         started        44 conhost.exe 23->44         started        46 conhost.exe 27->46         started        file9 signatures10 process11 signatures12 102 Tries to steal Instant Messenger accounts or passwords 31->102 104 Tries to steal Mail credentials (via file / registry access) 31->104 106 Tries to harvest and steal browser information (history, passwords, etc) 34->106
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-09-23 01:41:43 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4wekq7exsizjuobvg6ji2tv2siwfmho4jyv35f2mjuybcjba62q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
unknown_loader_037
Create hunting rule
Similar samples:
4008ca2e1341ca2b4bbd918537d4802fadf4bfa3dba0e058c840ffd6df43c651
RemcosRAT
47fef22842a3bd3769c9c78461cf85cc940167e58f96bccac4870e9acaae0159
RemcosRAT
59558d5bc10450ec63904f60f61b13f2e2feba2160c02bdd50eba25cd1b3b355
RemcosRAT
af0b876a436452a6e998fc622493aaa4553bcc53864d66a6a6d5d476a85902eb
RemcosRAT
+ 4'258 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/240923-rmtm5aycpq/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Malware Config
C2 Extraction:
127.0.0.1:59321
nnamoo.duckdns.org:59321
Verdict:
Malicious
Tags:
remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/4048782c-244d-4a33-ab07-d1c824d65916
Unpacked files
SH256 hash:
2a03a0ccd6a2e0bbbf78397add3ab73643ac480a2f009636c4ed98bd6e9de9aa
MD5 hash:
e479a0191a8c5dd3aef68af966914b43
SHA1 hash:
fb6c8eebd1e422189dc7528092286e89719331bc
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/9e568b68-caea-4502-aec1-2b4c4d8cbe5a/
Parent samples :
8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf
d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9
4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b
49e7ee12a475105efab2e363450b2e5582fc05d114967fe57a3d80d22a2fea81
8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
cd76524a5a1a193336ce0a72efa54af99367743c2d380d0416a1d09a516fad8b
SH256 hash:
5f54dacd422f4b063a925b312838642965bab92dd7235b8c9580a60ef46e5d14
MD5 hash:
8ffbd04efdcdafa0b86ef20fb37c29bb
SHA1 hash:
a7018a31bb74977711f2f4b56e29aa335448914f
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/9e568b68-caea-4502-aec1-2b4c4d8cbe5a/
Parent samples :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 hash:
5a055ed3e971677770a17a02832cdd06431957a4142bfd5e58efd464794661cb
MD5 hash:
19de40889afc00c1f64b0610f1ac8bc8
SHA1 hash:
43b8362495d8ff1540939da782653dbdc0885dc9
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/9e568b68-caea-4502-aec1-2b4c4d8cbe5a/
SH256 hash:
8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
MD5 hash:
571902de75705d1aeaa32be01459dc65
SHA1 hash:
4ccf3c9a339146008c1d8466857e13d3c7752a05
Link:
https://www.unpac.me/results/9e568b68-caea-4502-aec1-2b4c4d8cbe5a/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f2c4543e4bc/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/8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5

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.

Malspam

RemcosRAT

Executable exe 8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5

(this sample)

  
Delivery method
Distributed via e-mail attachment

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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