MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a54b78279717d2eb6b13e183e0f69e89a023a8b945dfe47e29819f526037548b. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: a54b78279717d2eb6b13e183e0f69e89a023a8b945dfe47e29819f526037548b
SHA3-384 hash: c44ef0c1704eaa4c0713056224633cae1395019203b63efebe242caa771b68003bf0c7de50e24d64a265d354ba9882a7
SHA1 hash: 5782c6ab6750d2cb836a42c44d7febadefd2aa88
MD5 hash: 9abd0bf2650949364cd07b699086c0a7
humanhash: arizona-bulldog-montana-victor
File name:a54b78279717d2eb6b13e183e0f69e89a023a8b945dfe47e29819f526037548b
Download: download sample
Signature RemcosRAT
File size:23'552 bytes
First seen:2022-10-10 13:46:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 384:L9RX/OLOZbwjZCpWCinbQ4vlid7TEPVoyQLkopnj:6zjZhDdvlid74PpQL9pj
TLSH T1FCB21AC4C4414212F9B10DB99A32DE3237EA6CD45DF5BE9816E4F84739FA29314A2C1F
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 554444594d55714d (10 x AgentTesla, 5 x Formbook, 3 x Loki)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a54b78279717d2eb6b13e183e0f69e89a023a8b945dfe47e29819f526037548b
Verdict:
Malicious activity
Analysis date:
2022-10-10 13:46:57 UTC
Tags:
n/a

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
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
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, FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Behaviour
Behavior Graph:
n/a
Threat name:
ByteCode-MSIL.Trojan.Leonem
Status:
Malicious
First seen:
2022-09-28 18:06:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook remcos
Result
Malware family:
Score:
  10/10
Tags:
family:formbook family:remcos botnet:new campaign:vazs collection persistence rat spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Adds policy Run key to start application
Executes dropped EXE
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Formbook
Remcos
Malware Config
C2 Extraction:
remcapi.duckdns.org:2028
Gathering data
Unpacked files
SH256 hash:
a54b78279717d2eb6b13e183e0f69e89a023a8b945dfe47e29819f526037548b
MD5 hash:
9abd0bf2650949364cd07b699086c0a7
SHA1 hash:
5782c6ab6750d2cb836a42c44d7febadefd2aa88
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:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Comments