MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 25ba7b40ff6921b6590360a905d4389e799e0fc9f69f131f8ec21611482cde82. 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: 19


Intelligence 19 IOCs YARA 7 File information Comments

SHA256 hash: 25ba7b40ff6921b6590360a905d4389e799e0fc9f69f131f8ec21611482cde82
SHA3-384 hash: 48cf484dd0a5ce8ef57c4772971dcda4823f462181c6c9d1718f3d56b31e30916ea674d43cd13c4ba521b09a93a976be
SHA1 hash: 23bc47574a50a32c974d1dc4aadc67983042e922
MD5 hash: 5fed20d8783f9145b88bb422b672de93
humanhash: orange-two-fillet-kitten
File name:hesaphareketi-01.exe
Download: download sample
Signature RemcosRAT
File size:510'587 bytes
First seen:2023-02-21 14:12:13 UTC
Last seen:2023-02-21 15:29:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6kBclFZwc1svqTuycWtk2NZYqddBAP6yT21MK0D/ciIueKM/G2ifpfe/TWLzx:vYm+niyJaIdi6yTmey/GvUTno4EQez1
Threatray 2'681 similar samples on MalwareBazaar
TLSH T1D6B42344A7B0F62BC8E247F049BA4B4F93739A1B805872DB3B112F9A7D63943C71A715
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
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) (4505/5/1)
File icon (PE):PE icon
dhash icon 8070ccc08cccfa3e (2 x NanoCore, 2 x Loki, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe geo RAT RemcosRAT TUR

Intelligence


File Origin
# of uploads :
2
# of downloads :
230
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
hesaphareketi-01.exe
Verdict:
Malicious activity
Analysis date:
2023-02-21 14:15:20 UTC
Tags:
rat remcos keylogger

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

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Creating a file
Searching for the window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed remcos shell32.dll
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:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Installs a global keyboard hook
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 submitted file
Sigma detected: Remcos
Uses dynamic DNS services
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 812641 Sample: hesaphareketi-01.exe Startdate: 21/02/2023 Architecture: WINDOWS Score: 100 43 Malicious sample detected (through community Yara rule) 2->43 45 Antivirus detection for URL or domain 2->45 47 Multi AV Scanner detection for submitted file 2->47 49 6 other signatures 2->49 7 hesaphareketi-01.exe 19 2->7         started        10 gwvmymf.exe 1 2->10         started        12 gwvmymf.exe 1 2->12         started        process3 file4 33 C:\Users\user\AppData\Local\...\hrnbpyuya.exe, PE32 7->33 dropped 14 hrnbpyuya.exe 1 3 7->14         started        18 WerFault.exe 3 10 10->18         started        20 conhost.exe 10->20         started        22 WerFault.exe 10 12->22         started        24 conhost.exe 12->24         started        process5 file6 37 C:\Users\user\AppData\Roaming\...\gwvmymf.exe, PE32 14->37 dropped 53 Contains functionality to bypass UAC (CMSTPLUA) 14->53 55 Detected unpacking (changes PE section rights) 14->55 57 Detected unpacking (overwrites its own PE header) 14->57 59 5 other signatures 14->59 26 hrnbpyuya.exe 2 17 14->26         started        31 conhost.exe 14->31         started        signatures7 process8 dnsIp9 39 report1.duckdns.org 195.3.223.117, 49702, 5890 PL-SKYTECH-ASPL Poland 26->39 41 geoplugin.net 178.237.33.50, 49704, 80 ATOM86-ASATOM86NL Netherlands 26->41 35 C:\ProgramData\remcos\logs.dat, data 26->35 dropped 51 Installs a global keyboard hook 26->51 file10 signatures11
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2023-02-21 13:44:21 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
23 of 25 (92.00%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
report1.duckdns.org:5890
Unpacked files
SH256 hash:
a0dd5abd7e9b2c13e22d5723e473fa2e97c2080274e4ce4de2f33b61130ec59b
MD5 hash:
bd9f2d049d5d224d032fb1d77e7de792
SHA1 hash:
977866535b4c5e4a52b3b377e9f68129bc74f090
SH256 hash:
25ba7b40ff6921b6590360a905d4389e799e0fc9f69f131f8ec21611482cde82
MD5 hash:
5fed20d8783f9145b88bb422b672de93
SHA1 hash:
23bc47574a50a32c974d1dc4aadc67983042e922
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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information


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

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