MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eaa16bf6cd40985c68d385e17258b583c83ceb08b576bd21e6f577c9a6cd38dc. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments

SHA256 hash: eaa16bf6cd40985c68d385e17258b583c83ceb08b576bd21e6f577c9a6cd38dc
SHA3-384 hash: 145566a3d8df7542b6eb5d28185780357179e53fea779cb3a77541a2c2670347a74e03bce4c99c1b834db0f4bc7d9748
SHA1 hash: 171ee9aa5d015f0985fc0085106be787e8ec428a
MD5 hash: ba3a1401cfc488c9494d6df9a1ed3c16
humanhash: november-seventeen-fix-carpet
File name:PO D2500513.exe
Download: download sample
Signature RemcosRAT
File size:664'010 bytes
First seen:2025-03-11 15:12:53 UTC
Last seen:2025-03-12 09:35:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1f23f452093b5c1ff091a2f9fb4fa3e9 (274 x GuLoader, 36 x RemcosRAT, 23 x AgentTesla)
ssdeep 12288:Acpp+dZ5idm0hM8KGm/PgsKNLjKSvU+yeS8KUpg4MBPI:Acpp+dZ55UmgsKNLj/vU+yeSgD
Threatray 1 similar samples on MalwareBazaar
TLSH T152E402163B36F803E159A0745B61D2BD7A78AE41291B870AF6F07FEF7678352AC09341
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 64fcfefefcf8f872 (3 x RemcosRAT)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
3
# of downloads :
424
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
PO D2500513.exe
Verdict:
Malicious activity
Analysis date:
2025-03-11 15:46:20 UTC
Tags:
rat remcos remote

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
blackhole installer microsoft_visual_cc overlay packed packer_detected
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, GuLoader
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Detected Remcos RAT
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
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)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1635380 Sample: PO D2500513.exe Startdate: 11/03/2025 Architecture: WINDOWS Score: 100 29 geoplugin.net 2->29 45 Suricata IDS alerts for network traffic 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 7 other signatures 2->51 8 PO D2500513.exe 34 2->8         started        signatures3 process4 file5 25 C:\Users\user\AppData\Local\...\System.dll, PE32 8->25 dropped 11 PO D2500513.exe 4 15 8->11         started        process6 dnsIp7 31 204.10.160.190, 2404, 49713, 49714 UNREAL-SERVERSUS Canada 11->31 33 204.10.160.191, 49711, 80 UNREAL-SERVERSUS Canada 11->33 35 geoplugin.net 178.237.33.50, 49715, 80 ATOM86-ASATOM86NL Netherlands 11->35 27 C:\ProgramData\remcos\logs.dat, data 11->27 dropped 53 Detected Remcos RAT 11->53 55 Writes to foreign memory regions 11->55 57 Maps a DLL or memory area into another process 11->57 59 2 other signatures 11->59 16 recover.exe 2 11->16         started        19 recover.exe 1 11->19         started        21 recover.exe 1 11->21         started        23 recover.exe 11->23         started        file8 signatures9 process10 signatures11 37 Tries to steal Mail credentials (via file registry) 16->37 39 Tries to harvest and steal browser information (history, passwords, etc) 16->39 41 Tries to steal Instant Messenger accounts or passwords 19->41 43 Tries to steal Mail credentials (via file / registry access) 21->43
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-03-11 06:33:03 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection discovery downloader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
204.10.160.190:2404
Unpacked files
SH256 hash:
eaa16bf6cd40985c68d385e17258b583c83ceb08b576bd21e6f577c9a6cd38dc
MD5 hash:
ba3a1401cfc488c9494d6df9a1ed3c16
SHA1 hash:
171ee9aa5d015f0985fc0085106be787e8ec428a
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


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

Malspam

RemcosRAT

Executable exe eaa16bf6cd40985c68d385e17258b583c83ceb08b576bd21e6f577c9a6cd38dc

(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
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::SetFileSecurityW
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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