MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 558791ef8ee4a269644ecce15552270a2e8f287603308069084793370ba9451d. 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: 10


Intelligence 10 IOCs YARA 7 File information Comments

SHA256 hash: 558791ef8ee4a269644ecce15552270a2e8f287603308069084793370ba9451d
SHA3-384 hash: 903c7640a9a4a2466f840d92500eb332a3ab7ede3ef7dbded424260985f86e784351d2afb66d1d2b74e60bd83ba5753d
SHA1 hash: 3ed87df9337caf7273f372c0953ad35c37cb8fc8
MD5 hash: 25614a9bf253a8aa212a466ade7f96bd
humanhash: august-crazy-charlie-bakerloo
File name:ORDEN_6478.exe
Download: download sample
Signature RemcosRAT
File size:1'018'656 bytes
First seen:2021-02-10 13:45:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0c3b8980defdb88e12547d79fd9fc724 (4 x RemcosRAT)
ssdeep 12288:+82glUZCAYAIo4Kv8dSF8f+W2RoVep9JsdEtOw8Ps1je:N2oWPIo9v8de5+efSm78Pkje
Threatray 78 similar samples on MalwareBazaar
TLSH 15257DF27B61443BE0233AFA9C4A53A469167DA8A95C480E6770BD0B7F367853DD804F
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: server.doole.io
Sending IP: 188.40.83.134
From: Garcia Martin <info@valmec.com.ar>
Subject: RE: Nuestra Orden REVISADA
Attachment: ORDEN_6478.iso (contains "ORDEN_6478.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ORDEN_6478.exe
Verdict:
Malicious activity
Analysis date:
2021-02-10 13:49:17 UTC
Tags:
installer 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 window
DNS request
Sending a custom TCP request
Sending a UDP request
Creating a file
Deleting a recently created file
Launching a process
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Setting a global event handler for the keyboard
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.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates a thread in another existing process (thread injection)
Delayed program exit found
Detected Remcos RAT
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-02-10 13:46:06 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Adds Run key to start application
Remcos
Unpacked files
SH256 hash:
d2f876d808e77cfce00ded4bfc541671c500f0ea9ea873c04333c554ea54a791
MD5 hash:
e561fb27b26e5d960fd61580e5fb35bd
SHA1 hash:
5df94fbbf001b70e2f20f4a3101de45d321016e5
SH256 hash:
558791ef8ee4a269644ecce15552270a2e8f287603308069084793370ba9451d
MD5 hash:
25614a9bf253a8aa212a466ade7f96bd
SHA1 hash:
3ed87df9337caf7273f372c0953ad35c37cb8fc8
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:ach_RemcosRAT
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants

File information


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

b193fc7650fd0bdfc310e38ef0ae2753

RemcosRAT

Executable exe 558791ef8ee4a269644ecce15552270a2e8f287603308069084793370ba9451d

(this sample)

  
Dropped by
MD5 b193fc7650fd0bdfc310e38ef0ae2753
  
Delivery method
Distributed via e-mail attachment

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