MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9. 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 28 File information Comments
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SHA256 hash: 287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9
SHA3-384 hash: f66920621000747a0377b2f8fcab04d859e5bf043fdce59bd196084272e881a15fc1cff4f07eb5117a647e1a840e50fe
SHA1 hash: b0ff73e01fd0156facba2f9a4bf8cb319e1e3dd6
MD5 hash: 5d34846b89bf43502e2be0d4fd004618
humanhash: cat-carpet-colorado-gee
File name:SecuriteInfo.com.Win32.TrojanX-gen.29314.2446
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'243'648 bytes
First seen:2023-09-05 09:32:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash beefa6546dd4570bf21020f1082d8b97 (2 x RemcosRAT, 1 x DBatLoader, 1 x Formbook)
ssdeep 24576:ORTaL+A2f8Zhp8bYm1EnyWjkf0eFuPD+4m:gTaKsh
Threatray 8 similar samples on MalwareBazaar
TLSH T111456CE2A254DC72F06A3579CC89B2D0396B7CED6D3A5C8D166C394A1A73761392C03F
TrID 54.3% (.EXE) InstallShield setup (43053/19/16)
16.5% (.SCR) Windows screen saver (13097/50/3)
13.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.EXE) Win32 Executable (generic) (4505/5/1)
2.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 60e094e28484a0cc (2 x RemcosRAT, 1 x DBatLoader, 1 x Formbook)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
323
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.TrojanX-gen.29314.2446
Verdict:
Malicious activity
Analysis date:
2023-09-05 09:34:25 UTC
Tags:
installer dbatloader rat remcos remote
Link:
https://app.any.run/tasks/a41611c9-7236-4315-9f9c-2261f1aee3d0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
ModiLoader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/446277/
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.29314.2446.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Sending a custom TCP request
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Searching for the window
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control keylogger lolbin masquerade remcos replace
Link:
https://www.filescan.io/uploads/64f6f5d1560864d1b675506e/reports/8ee83cd3-39ac-4208-9c68-17fde86ce0ae/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1f03d407-c772-4e19-b1e5-1b2d1b1babac
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1303406
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
DLL side loading technique detected
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
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: Remcos
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)
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1303406 Sample: SecuriteInfo.com.Win32.Troj... Startdate: 05/09/2023 Architecture: WINDOWS Score: 100 90 Found malware configuration 2->90 92 Malicious sample detected (through community Yara rule) 2->92 94 Antivirus detection for dropped file 2->94 96 8 other signatures 2->96 11 SecuriteInfo.com.Win32.TrojanX-gen.29314.2446.exe 1 7 2->11         started        16 Inyowlsz.PIF 2->16         started        process3 dnsIp4 72 web.fe.1drv.com 11->72 74 onedrive.live.com 11->74 80 2 other IPs or domains 11->80 58 C:\Users\Public\Libraries\netutils.dll, PE32+ 11->58 dropped 60 C:\Users\Public\Libraries\easinvoker.exe, PE32+ 11->60 dropped 62 C:\Users\Public\Libraries\Inyowlsz.PIF, PE32 11->62 dropped 114 Drops PE files with a suspicious file extension 11->114 116 Writes to foreign memory regions 11->116 118 Allocates memory in foreign processes 11->118 18 cmd.exe 1 11->18         started        21 colorcpl.exe 5 13 11->21         started        76 web.fe.1drv.com 16->76 78 onedrive.live.com 16->78 82 2 other IPs or domains 16->82 120 Multi AV Scanner detection for dropped file 16->120 122 Injects a PE file into a foreign processes 16->122 24 SndVol.exe 16->24         started        file5 signatures6 process7 dnsIp8 98 Uses ping.exe to sleep 18->98 100 Drops executables to the windows directory (C:\Windows) and starts them 18->100 102 Uses ping.exe to check the status of other devices and networks 18->102 26 easinvoker.exe 18->26         started        28 PING.EXE 1 18->28         started        31 xcopy.exe 2 18->31         started        41 8 other processes 18->41 68 163.123.143.32, 42199, 49726, 49727 ILIGHT-NETUS Reserved 21->68 70 geoplugin.net 178.237.33.50, 49728, 80 ATOM86-ASATOM86NL Netherlands 21->70 104 Maps a DLL or memory area into another process 21->104 34 colorcpl.exe 21->34         started        37 colorcpl.exe 21->37         started        39 colorcpl.exe 21->39         started        43 2 other processes 21->43 signatures9 process10 dnsIp11 45 cmd.exe 1 26->45         started        84 127.0.0.1 unknown unknown 28->84 64 C:\Windows \System32\easinvoker.exe, PE32+ 31->64 dropped 106 Tries to steal Instant Messenger accounts or passwords 34->106 108 Tries to steal Mail credentials (via file / registry access) 34->108 86 192.168.2.1 unknown unknown 37->86 110 Tries to harvest and steal browser information (history, passwords, etc) 37->110 66 C:\Windows \System32\netutils.dll, PE32+ 41->66 dropped file12 signatures13 process14 signatures15 124 Adds a directory exclusion to Windows Defender 45->124 48 cmd.exe 1 45->48         started        51 conhost.exe 45->51         started        process16 signatures17 88 Adds a directory exclusion to Windows Defender 48->88 53 powershell.exe 20 48->53         started        process18 signatures19 112 DLL side loading technique detected 53->112 56 conhost.exe 53->56         started        process20
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-09-05 06:58:49 UTC
File Type:
PE (Exe)
Extracted files:
106
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=fb5iy6clyq4tg7gqmnzv22kb5mfeb4vjcn5qqw5ynxmnjkqu7teq._file
Verdict:
malicious
Similar samples:
3074b7ebb1cf86d43eb65ab8fdf650cfc5055c79ec91b2b685d74b7f244d39fb
RemcosRAT
33ca9923e204fe49ca08062c7799a0edd936be726f89e661756e058677eb4a96
RemcosRAT
46b90babfe4fa66ac9938280e0c884b0d490a34071bd29b846a2aa0c7a89e265
RemcosRAT
8be7eccf75282dc9c49fb20b4c7a500cf4fcd2e5401892dea640f0fd0663524e
RemcosRAT
8fa3e79856319c3ac7ff04639dcdbaec1ec7ce8c92e4a7aca8637751c84a247b
RemcosRAT
c9e1785bc8bf36c1e16b38755288f7b726f4ff29a87dfda9004c8f6d9400c51d
RemcosRAT
d3f1d0c0e37e33ad600d209bd43d61a3e94b6bd2a5d87b63c53184d070ee1680
RemcosRAT
ec2a93fc951dac56dd988691db138c94ea8cbd477127bf95c2a9483f602d6b1e
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost collection persistence rat trojan
Link:
https://tria.ge/reports/230905-lh7fjaee3s/
Behaviour
Enumerates system info in registry
Runs ping.exe
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
127.0.0.1:43991
127.0.0.1:42199
163.123.143.32:42199
163.123.143.32:43991
Unpacked files
SH256 hash:
507dc3ef3b39c035093ac3cf80297d13eff0d8abaec4e2cf64323f6fb3c49ab5
MD5 hash:
d5c881a2b9d31fc404637e0384fdba01
SHA1 hash:
a478b74ade89074e6cc23e4ea85b4143610f900f
Detections:
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/ac8891e2-46c0-4750-b292-81822cc4d085/
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/ac8891e2-46c0-4750-b292-81822cc4d085/
SH256 hash:
287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9
MD5 hash:
5d34846b89bf43502e2be0d4fd004618
SHA1 hash:
b0ff73e01fd0156facba2f9a4bf8cb319e1e3dd6
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/ac8891e2-46c0-4750-b292-81822cc4d085/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/287a8c784bc4/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/287a8c784bc439337cd063735d6941eb0a40f2a9137b085bb86dd8d4aa14fcc9

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
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_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:QbotStuff
Create hunting rule
Author:anonymous
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:TeslaCryptPackedMalware
Create hunting rule
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
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:yara_template
Create hunting rule

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/446277/

Comments