MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3
SHA3-384 hash: af0404610423cc1000c68d69dfd114dba3fd8f2f3cd82f64816f557cbccdc38eda80fb643503ca4c512d2f97e91678dd
SHA1 hash: ecc78cd91c127a66929642ff7c901c17f5e55952
MD5 hash: 7f9d54f2643b695c21d8fb560e72106a
humanhash: tango-gee-princess-oranges
File name:PI-BD2403001.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'167'872 bytes
First seen:2024-03-26 12:50:47 UTC
Last seen:2024-03-26 14:36:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 641637641c27409ee101c8411467ad7b (2 x DBatLoader, 1 x RemcosRAT)
ssdeep 24576:llAinAzO5SRz+HJ0dkGdiNhp/BRaR6URr0GDp6eL:llAc5StANPpRaR6URrNp
TLSH T164458C176ED324F6F55AFD7878C642784728BA24DE14890377A52FC80F74ECABC29192
TrID 94.8% (.EXE) Win32 Executable Borland Delphi 7 (664796/42/58)
1.8% (.SCR) Windows screen saver (13097/50/3)
1.5% (.EXE) Win64 Executable (generic) (10523/12/4)
0.6% (.EXE) Win32 Executable (generic) (4504/4/1)
0.2% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon c44c936c63942404 (2 x DBatLoader, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
335
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3.exe
Verdict:
Malicious activity
Analysis date:
2024-03-26 16:05:58 UTC
Tags:
dbatloader
Link:
https://app.any.run/tasks/b3b559fe-be2c-4a6e-99a2-7bed21dbc6a2

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
Searching for synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Sending an HTTP GET request
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
explorer fingerprint keylogger lolbin redcap remcos shell32
Link:
https://www.filescan.io/uploads/6602c4bbf7095ca3446cf6e9/reports/3b129544-93ba-4cdf-aab2-98a0b2ff0a7b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3
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/12499357-7d7a-4690-9146-efb046dbb114
Result
Threat name:
Remcos, DBatLoader
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1415804
Signature
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
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
Early bird code injection technique detected
Found malware configuration
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
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: TrustedPath UAC Bypass Pattern
Uses dynamic DNS services
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1415804 Sample: PI-BD2403001.exe Startdate: 26/03/2024 Architecture: WINDOWS Score: 100 70 officerem.duckdns.org 2->70 72 ip.1021.filemail.com 2->72 74 2 other IPs or domains 2->74 84 Multi AV Scanner detection for domain / URL 2->84 86 Found malware configuration 2->86 88 Malicious sample detected (through community Yara rule) 2->88 92 13 other signatures 2->92 12 PI-BD2403001.exe 1 6 2->12         started        17 Qbijgrcm.PIF 2->17         started        19 Qbijgrcm.PIF 2->19         started        signatures3 90 Uses dynamic DNS services 70->90 process4 dnsIp5 82 ip.1021.filemail.com 23.237.82.74, 443, 49704, 49705 COGENT-174US United States 12->82 62 C:\Windows \System32\netutils.dll, PE32+ 12->62 dropped 64 C:\Windows \System32\8472429.exe, PE32+ 12->64 dropped 66 C:\Users\Public\Qbijgrcm.url, MS 12->66 dropped 68 C:\Users\Public\Libraries\Qbijgrcm, data 12->68 dropped 108 Early bird code injection technique detected 12->108 110 Allocates memory in foreign processes 12->110 112 Queues an APC in another process (thread injection) 12->112 21 SndVol.exe 3 16 12->21         started        26 cmd.exe 1 12->26         started        28 extrac32.exe 1 12->28         started        34 2 other processes 12->34 114 Multi AV Scanner detection for dropped file 17->114 30 SndVol.exe 17->30         started        32 colorcpl.exe 19->32         started        file6 signatures7 process8 dnsIp9 76 officerem.duckdns.org 23.95.235.29, 47212, 49707 AS-COLOCROSSINGUS United States 21->76 78 127.0.0.1 unknown unknown 21->78 80 geoplugin.net 178.237.33.50, 49714, 80 ATOM86-ASATOM86NL Netherlands 21->80 58 C:\ProgramData\remcos\logs.dat, data 21->58 dropped 94 Contains functionality to bypass UAC (CMSTPLUA) 21->94 96 Detected Remcos RAT 21->96 98 Contains functionalty to change the wallpaper 21->98 104 5 other signatures 21->104 100 Drops executables to the windows directory (C:\Windows) and starts them 26->100 36 8472429.exe 26->36         started        38 conhost.exe 26->38         started        60 C:\Users\Public\Libraries\Qbijgrcm.PIF, PE32 28->60 dropped 102 Drops PE files with a suspicious file extension 28->102 40 conhost.exe 34->40         started        42 conhost.exe 34->42         started        file10 signatures11 process12 process13 44 cmd.exe 1 36->44         started        signatures14 106 Adds a directory exclusion to Windows Defender 44->106 47 cmd.exe 1 44->47         started        50 conhost.exe 44->50         started        process15 signatures16 116 Adds a directory exclusion to Windows Defender 47->116 52 powershell.exe 23 47->52         started        54 conhost.exe 47->54         started        process17 process18 56 WmiPrvSE.exe 52->56         started       
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-03-26 06:26:57 UTC
File Type:
PE (Exe)
Extracted files:
74
AV detection:
23 of 37 (62.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g44ft4m5vftcz25n5kl74swpclubdnzkznkjbwamp4gy75ctkorq._file
Verdict:
malicious
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:modiloader family:remcos botnet:remotehost persistence rat trojan
Link:
https://tria.ge/reports/240326-p3g8xsde7s/
Behaviour
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
ModiLoader Second Stage
ModiLoader, DBatLoader
Remcos
Malware Config
C2 Extraction:
127.0.0.1:47212
officerem.duckdns.org:47212
Gathering data
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/373859f19da9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3

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 373859f19da9662cebadea97fe4acf12e811b72acb5490d80c7f0d8ff45353a3

(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
SHELL_APIManipulates System Shellshell32.dll::ShellExecuteA
shell32.dll::SHGetFileInfoA
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::DeleteFileA
kernel32.dll::GetFileAttributesA
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::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

Comments