MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f2df2225b522198984f1c38654f2d06f2855a0efc8c57d87f566ea21e5c68cab. 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 1 YARA 3 File information Comments

SHA256 hash: f2df2225b522198984f1c38654f2d06f2855a0efc8c57d87f566ea21e5c68cab
SHA3-384 hash: 570259d5d64f7a9d3db76f15dde54de1ed1a1798e069101c178817d3fcf03c16c390c18328917c4363d55c8eae1987f2
SHA1 hash: e93bb010d9df4bb5df8203429d228d4748976747
MD5 hash: 0db7fbc1b1d0af0a9503401691f95e30
humanhash: crazy-cold-sierra-helium
File name:DHL119040 receipt document,pdf.exe
Download: download sample
Signature RemcosRAT
File size:1'390'592 bytes
First seen:2024-07-11 10:45:28 UTC
Last seen:2024-07-11 11:40:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 8bbe9cde09f5a12204789b1787509d54 (1 x RemcosRAT)
ssdeep 24576:4IYk0Pslg/AQH7aEv/rVvJdFIBmtvzhZKux73WTx8UgSU2dwH:4IbUB/ZvhS65WxVgSU
TLSH T14255BF8E61A1D462D8320D759B39CAFD481E3DF3096DB81B2BD03E9D973E1627D090B6
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 27d0d8d4d4d8f006 (1 x Formbook, 1 x Loki, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
23.227.203.18:44577

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
23.227.203.18:44577 https://threatfox.abuse.ch/ioc/1296895/

Intelligence


File Origin
# of uploads :
2
# of downloads :
435
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
f2df2225b522198984f1c38654f2d06f2855a0efc8c57d87f566ea21e5c68cab.exe
Verdict:
Malicious activity
Analysis date:
2024-07-11 10:48:15 UTC
Tags:
fileshare remcos rat

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

Behaviour
Сreating synchronization primitives
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
borland_delphi fingerprint keylogger masquerade packed
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.
Result
Threat name:
Remcos, DBatLoader
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to detect sleep reduction / modifications
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
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Delayed program exit found
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Drops executables to the windows directory (C:\Windows) and starts them
Drops or copies cmd.exe with a different name (likely to bypass HIPS)
Drops PE files to the user root directory
Drops PE files with a suspicious file extension
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Opens network shares
Powershell is started from unusual location (likely to bypass HIPS)
Reads the Security eventlog
Reads the System eventlog
Sample uses process hollowing technique
Sigma detected: Execution from Suspicious Folder
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Parent in Public Folder Suspicious Process
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: TrustedPath UAC Bypass Pattern
Snort IDS alert 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)
UAC bypass detected (Fodhelper)
Uses dynamic DNS services
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1471440 Sample: DHL119040 receipt document,... Startdate: 11/07/2024 Architecture: WINDOWS Score: 100 92 jantasagasa.duckdns.org 2->92 94 ppeppa.db.files.1drv.com 2->94 96 7 other IPs or domains 2->96 120 Snort IDS alert for network traffic 2->120 122 Found malware configuration 2->122 124 Malicious sample detected (through community Yara rule) 2->124 128 24 other signatures 2->128 12 DHL119040 receipt document,pdf.exe 3 8 2->12         started        17 remcos.exe 2->17         started        19 remcos.exe 2->19         started        21 SystemSettingsAdminFlows.exe 2->21         started        signatures3 126 Uses dynamic DNS services 92->126 process4 dnsIp5 104 dual-spov-0006.spov-msedge.net 13.107.137.11, 443, 49730, 49731 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->104 106 l-0003.l-dc-msedge.net 13.107.43.12, 443, 49732, 49735 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->106 84 C:\Users\Public\Libraries\yfkwifxL.pif, PE32 12->84 dropped 86 C:\ProgramData\Remcos\remcos.exe, PE32 12->86 dropped 88 C:\Users\Public\Lxfiwkfy.url, MS 12->88 dropped 90 C:\ProgramData\...\remcos.exe:Zone.Identifier, ASCII 12->90 dropped 162 Detected Remcos RAT 12->162 164 Creates autostart registry keys with suspicious names 12->164 166 Creates multiple autostart registry keys 12->166 168 3 other signatures 12->168 23 yfkwifxL.pif 8 12->23         started        27 remcos.exe 3 18 12->27         started        30 extrac32.exe 12->30         started        file6 signatures7 process8 dnsIp9 74 C:\Users\user\AppData\Local\Temp\...\971F.bat, ASCII 23->74 dropped 140 Detected unpacking (changes PE section rights) 23->140 32 cmd.exe 1 23->32         started        100 jantasagasa.duckdns.org 23.227.203.18, 44577, 49736, 49737 HVC-ASUS United States 27->100 102 geoplugin.net 178.237.33.50, 49740, 80 ATOM86-ASATOM86NL Netherlands 27->102 76 C:\ProgramData\trhrth\logs.dat, data 27->76 dropped 142 Detected Remcos RAT 27->142 144 Contains functionalty to change the wallpaper 27->144 146 Contains functionality to inject code into remote processes 27->146 148 4 other signatures 27->148 35 remcos.exe 27->35         started        37 remcos.exe 27->37         started        39 remcos.exe 27->39         started        41 conhost.exe 27->41         started        file10 signatures11 process12 signatures13 108 Drops executables to the windows directory (C:\Windows) and starts them 32->108 110 Adds a directory exclusion to Windows Defender 32->110 43 alpha.exe 32->43         started        46 alpha.exe 2 32->46         started        48 extrac32.exe 1 32->48         started        51 15 other processes 32->51 112 Tries to steal Instant Messenger accounts or passwords 35->112 114 Tries to steal Mail credentials (via file / registry access) 35->114 116 Tries to harvest and steal browser information (history, passwords, etc) 37->116 process14 file15 150 Adds a directory exclusion to Windows Defender 43->150 53 xkn.exe 43->53         started        152 Uses ping.exe to sleep 46->152 154 Uses ping.exe to check the status of other devices and networks 46->154 72 C:\Users\Public\alpha.exe, PE32+ 48->72 dropped 156 Drops PE files to the user root directory 48->156 158 Drops or copies cmd.exe with a different name (likely to bypass HIPS) 48->158 160 Opens network shares 51->160 56 PING.EXE 51->56         started        59 extrac32.exe 1 51->59         started        62 extrac32.exe 51->62         started        64 2 other processes 51->64 signatures16 process17 dnsIp18 130 Powershell is started from unusual location (likely to bypass HIPS) 53->130 132 Adds a directory exclusion to Windows Defender 53->132 134 Reads the Security eventlog 53->134 136 Reads the System eventlog 53->136 66 alpha.exe 53->66         started        98 127.0.0.1 unknown unknown 56->98 78 C:\Users\Public\ger.exe, PE32+ 59->78 dropped 80 C:\Users\Public\xkn.exe, PE32+ 62->80 dropped 82 C:\Windows \System32\per.exe, PE32+ 64->82 dropped file19 signatures20 process21 signatures22 118 Adds a directory exclusion to Windows Defender 66->118 69 ger.exe 66->69         started        process23 signatures24 138 UAC bypass detected (Fodhelper) 69->138
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2024-07-11 10:46:05 UTC
File Type:
PE (Exe)
Extracted files:
48
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection persistence rat spyware stealer
Behaviour
Kills process with taskkill
Modifies registry class
Runs ping.exe
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
jantasagasa.duckdns.org:44577
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
f2df2225b522198984f1c38654f2d06f2855a0efc8c57d87f566ea21e5c68cab
MD5 hash:
0db7fbc1b1d0af0a9503401691f95e30
SHA1 hash:
e93bb010d9df4bb5df8203429d228d4748976747
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Author:malware-lu
Rule name:Borland
Author:malware-lu
Rule name:shellcode
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.

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::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

Comments