MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
SHA3-384 hash: 3b749f04b634481e042aa1efb4bdf17a09e4677f30c46bc25c8d24e3ccb6c42ce012fb45f4fe18a4ae0e373005eb8d78
SHA1 hash: e808ef56d1b382b1e01e16af299a548cb038f52c
MD5 hash: eac95a52ac634d3ea75387201a2c749c
humanhash: crazy-mexico-quiet-jupiter
File name:0028BGL880-2024.PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'730'048 bytes
First seen:2024-04-03 15:56:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e721dea227082ce606ccc9598b4fe550 (3 x RemcosRAT, 1 x AveMariaRAT, 1 x DBatLoader)
ssdeep 49152:ay6imwGhfj4GBT2z95Zw/L+gwnzFnwyuPTh:azimw4f8iSuD+g
TLSH T16E85E0AAF29049BFC48319F41F7A8AFB54B73D303C68612BA8DC7D4C4BB62913415997
TrID 36.1% (.SCR) Windows screen saver (13097/50/3)
29.0% (.EXE) Win64 Executable (generic) (10523/12/4)
12.4% (.EXE) Win32 Executable (generic) (4504/4/1)
5.7% (.EXE) Win16/32 Executable Delphi generic (2072/23)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e0cb898333052b83 (3 x RemcosRAT, 1 x AveMariaRAT, 1 x DBatLoader)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
334
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63.exe
Verdict:
Malicious activity
Analysis date:
2024-04-03 15:57:54 UTC
Tags:
dbatloader rat remcos remote keylogger stealer
Link:
https://app.any.run/tasks/dbbb5a11-a21e-4984-8200-579ce4bdb918

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Creating a file
Creating a process from a recently created file
Launching a process
Searching for the window
Setting a keyboard event handler
Sending an HTTP GET request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Reading critical registry keys
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Sending a TCP request to an infection source
Stealing user critical data
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint keylogger masquerade packed
Link:
https://www.filescan.io/uploads/660d7c53ec04992a87d9dd3f/reports/e7305fec-b4d2-4908-a918-2ae2a43f095b/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
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:
Dbatloader
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5be7ae9f-b09a-4bdb-b15a-8403dab1980c
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1419617
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
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
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
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
Sample uses process hollowing technique
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious Double Extension File Execution
Sigma detected: TrustedPath UAC Bypass Pattern
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 an obfuscated file name to hide its real file extension (double extension)
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 dnsIp2 2 Behavior Graph ID: 1419617 Sample: 0028BGL880-2024.PDF.exe Startdate: 03/04/2024 Architecture: WINDOWS Score: 100 63 ip.1016.filemail.com 2->63 65 geoplugin.net 2->65 67 1016.filemail.com 2->67 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Antivirus detection for URL or domain 2->79 81 17 other signatures 2->81 12 0028BGL880-2024.PDF.exe 4 22 2->12         started        17 Dkesuvii.PIF 2->17         started        19 Dkesuvii.PIF 2->19         started        signatures3 process4 dnsIp5 69 192.3.101.8, 49708, 49714, 55677 AS-COLOCROSSINGUS United States 12->69 71 127.0.0.1 unknown unknown 12->71 73 2 other IPs or domains 12->73 55 C:\Windows \System32\netutils.dll, PE32+ 12->55 dropped 57 C:\Windows \System32\6638910.exe, PE32+ 12->57 dropped 59 C:\Users\Public\Libraries\Dkesuvii, data 12->59 dropped 61 2 other malicious files 12->61 dropped 97 Detected Remcos RAT 12->97 99 Tries to steal Mail credentials (via file registry) 12->99 101 Contains functionalty to change the wallpaper 12->101 109 6 other signatures 12->109 21 cmd.exe 1 12->21         started        24 0028BGL880-2024.PDF.exe 1 12->24         started        26 0028BGL880-2024.PDF.exe 1 12->26         started        28 4 other processes 12->28 103 Multi AV Scanner detection for dropped file 17->103 105 Contains functionality to bypass UAC (CMSTPLUA) 17->105 107 Machine Learning detection for dropped file 17->107 111 2 other signatures 17->111 file6 signatures7 process8 file9 83 Drops executables to the windows directory (C:\Windows) and starts them 21->83 31 6638910.exe 21->31         started        33 conhost.exe 21->33         started        85 Tries to steal Instant Messenger accounts or passwords 24->85 87 Tries to steal Mail credentials (via file / registry access) 24->87 89 Tries to harvest and steal browser information (history, passwords, etc) 26->89 53 C:\Users\Public\Libraries\Dkesuvii.PIF, PE32 28->53 dropped 91 Drops PE files with a suspicious file extension 28->91 35 conhost.exe 28->35         started        37 conhost.exe 28->37         started        signatures10 process11 process12 39 cmd.exe 1 31->39         started        signatures13 93 Adds a directory exclusion to Windows Defender 39->93 42 cmd.exe 1 39->42         started        45 conhost.exe 39->45         started        process14 signatures15 95 Adds a directory exclusion to Windows Defender 42->95 47 powershell.exe 23 42->47         started        49 conhost.exe 42->49         started        process16 process17 51 WmiPrvSE.exe 47->51         started       
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63/
Threat name:
Win32.Trojan.ModiLoader
Create hunting rule
Status:
Malicious
First seen:
2024-04-03 00:14:11 UTC
File Type:
PE (Exe)
Extracted files:
27
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=67yxtdr5m2ea6lftl5twjiodfebkxm6optvp4c6ajfewzkiwdzrq._file
Verdict:
malicious
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost collection persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/240403-tdxpjafe98/
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
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
Reads user/profile data of web browsers
ModiLoader Second Stage
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
127.0.0.1:45671
127.0.0.1:55677
192.3.101.8:55677
192.3.101.8:45671
Unpacked files
SH256 hash:
019b19ecfb23fc5649a9cddf16a1f83ff3c319d23b3882d9da9babf43cc5c0ce
MD5 hash:
b81203b6d6de5a66cbb9df0500b1437a
SHA1 hash:
d0c19c34107e1c465de02deb69422bc5df8e1563
Detections:
win_dbatloader_g1
Create hunting rule
MALWARE_Win_ModiLoader
Create hunting rule
Link:
https://www.unpac.me/results/8a0ea02a-d912-45b0-a52b-a26f3dc76260/
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/8a0ea02a-d912-45b0-a52b-a26f3dc76260/
SH256 hash:
f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63
MD5 hash:
eac95a52ac634d3ea75387201a2c749c
SHA1 hash:
e808ef56d1b382b1e01e16af299a548cb038f52c
Detections:
DbatLoaderStage1
Create hunting rule
Link:
https://www.unpac.me/results/8a0ea02a-d912-45b0-a52b-a26f3dc76260/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f7f1798e3d66/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/f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

RemcosRAT

Executable exe f7f1798e3d66880f2cb35f6764a1c32902abb3ce7ceafe0bc049496ca9161e63

(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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

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