MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fa0844502ea0ef910ad1ee3f7c82c8e0bc0009dc56f6a671c843cfb99e8c289f. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments

SHA256 hash: fa0844502ea0ef910ad1ee3f7c82c8e0bc0009dc56f6a671c843cfb99e8c289f
SHA3-384 hash: 4915009c05faa4cfbf3a29830cf50934f639bc076d5f1bc4db2a2dfdff5852d02c33e12f54eda131182ddd6cbe0f52a3
SHA1 hash: 1b3a1415a73b7485d405ac07a377b74734fded99
MD5 hash: 5168ce0b33f94d6996da74f419cf7839
humanhash: black-tennis-california-hamper
File name:Invoice #756-77988-23989646.exe
Download: download sample
Signature RemcosRAT
File size:457'216 bytes
First seen:2021-01-12 18:05:53 UTC
Last seen:2021-01-12 19:49:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:8+CcBDgiNO4jfCbN89JzADFPcNU8qgVH4wJCXyoDkWNNvz:zBEiNj6uePEU8qgZ4wJCia9Nvz
Threatray 84 similar samples on MalwareBazaar
TLSH 2AA40A0EAFD3EAD2C5907CF763DE65E903B3E1EB460092A5130546F4EB563C62C4E296
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: www970.sakura.ne.jp
Sending IP: 219.94.128.210
From: info@jibasan.org
Reply-To: aggreko@emirates.net.ae
Subject: Fwd:Re:Re:Re: Notice on the above Invoice #756-77988-23989646
Attachment: Invoice 756-77988-23989646.rar (contains "Invoice #756-77988-23989646.exe")

Intelligence


File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice #756-77988-23989646.exe
Verdict:
Malicious activity
Analysis date:
2021-01-12 18:33:50 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 window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching the default Windows debugger (dwwin.exe)
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Signature
Detected Remcos RAT
Executable has a suspicious name (potential lure to open the executable)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Status:
Malicious
First seen:
2021-01-12 18:06:14 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Loads dropped DLL
Adds policy Run key to start application
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
1.remcosagent.com:10001
Unpacked files
SH256 hash:
fa0844502ea0ef910ad1ee3f7c82c8e0bc0009dc56f6a671c843cfb99e8c289f
MD5 hash:
5168ce0b33f94d6996da74f419cf7839
SHA1 hash:
1b3a1415a73b7485d405ac07a377b74734fded99
SH256 hash:
c06d4e3d0205d9bdd4a4b40b8da710d698b3a5d73a1626c9ca058c10b2c6d00c
MD5 hash:
7f67414b3fd29299f2d29ad7c2afb995
SHA1 hash:
2ec40d57c08c47433a6d044d271d74005dddae8d
SH256 hash:
4f81e273da20c5b9835ce6ca57cc061d77764f9e3927bdb1505cb791bf50b046
MD5 hash:
29e19b5dce96140a8b90152b16bd44af
SHA1 hash:
4f3dc6eb876bb58f53966980a9c451a04ec17d8a
SH256 hash:
1ffac68def5ce68f650ac8229d3a40e9ac1fc89adeddc9a6041c3dcebb6d1933
MD5 hash:
8503258c9fb8f1519204a2f9a4ccd873
SHA1 hash:
63a62f152f2fe8d79aa29eb3133ba180b03ed416
SH256 hash:
36ce80bc5bf13c00266a9d9a64596c2e2c320e099955f82eef6a7daef1239a8e
MD5 hash:
7091d1063eb2d1472e7de9bd97475a6c
SHA1 hash:
69b8ede0743bd1b0ef960856f48672d562069651
Detections:
win_remcos_g0 win_remcos_auto
SH256 hash:
a60900adc31e8e28ff541b91a55de5d9719c0d1ddc3022eb6f6fb5ac19cc9e4f
MD5 hash:
831fb0609b3509b4fb31ac662ac69217
SHA1 hash:
985c33fa2b01e305995e2ea166b961b01f0f6335
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
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


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

Malspam

RemcosRAT

Executable exe fa0844502ea0ef910ad1ee3f7c82c8e0bc0009dc56f6a671c843cfb99e8c289f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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