MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 280ebd2392e96c2017db58a6559696b0492370122272e05a01b4ec6d75eef33b. 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



GuLoader


Vendor detections: 4


Intelligence 4 IOCs YARA 2 File information Comments

SHA256 hash: 280ebd2392e96c2017db58a6559696b0492370122272e05a01b4ec6d75eef33b
SHA3-384 hash: 802eb96b63375dd9742cbba88817ac99b29e6fb069c632b03599540dd27abf32917495a814d81b974c7e9588f68b6508
SHA1 hash: 25a5ea4ebccabd376332f1b089789531a432812b
MD5 hash: 1331b2aefb47bb0be0ff0887d494daa9
humanhash: mobile-sweet-twelve-island
File name:myfile.exe
Download: download sample
Signature GuLoader
File size:628'226 bytes
First seen:2020-05-02 07:45:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a2fcf9d2498e7b637d3c423ec2f92296 (2 x GuLoader, 1 x RemcosRAT)
ssdeep 12288:cxGRFtmUUzQySL0wKkQI84Ijz33tSXtYgdfeR44lF8t:UkFtmxQyQ0wiI84I/3Q9YgdGTWt
Threatray 927 similar samples on MalwareBazaar
TLSH 55D48E73F2D04677D0761A795C1B97A8583ABE203E28A88B2BF53D4C9F35381743A197
Reporter abuse_ch
Tags:exe GuLoader nVpn RAT RemcosRAT UPS


Avatar
abuse_ch
Malspam distributing GuLoader:

HELO: ours4.westcentralus.cloudapp.azure.com
Sending IP: 52.161.106.35
From: UPS Customer Service <customer@ups.com>
Subject: UPS - Pending delivery
Attachment: Myattachment.iso (contains "myfile.exe")

GuLoader pushing RemcosRAT from drive.google.com

RemcosRAT C2s:
kenya8.duckdns.org:7722 (185.140.53.43)
ikorodu2.duckdns.org
mypepsi22.duckdns.org
mypepsi25.duckdns.org

Pointing to nVpn:

% Information related to '185.140.53.0 - 185.140.53.255'

% Abuse contact for '185.140.53.0 - 185.140.53.255' is 'abuse@FOS-VPN.org'

inetnum: 185.140.53.0 - 185.140.53.255
netname: Freedom_Of_Speech_VPN
remarks: Before you contact us, please read:
remarks: 185.140.53.0/24 belongs to a NON-LOGGING VPN service.
remarks: We don't log any user activities.
remarks: We believe that the right to informational self-determination and the
remarks: right to privacy are essential to all citizens of all countries.
remarks: We don't host anything else on our servers than VPN software and our
remarks: customers can open a fixed number of Ports.
remarks: Like Public WiFi or Tor Exit Node Operators we cannot be held responsible
remarks: for the actions of our customers, because we simply can't (and to be
remarks: honest: don't want) to control them.
country: EU
org: ORG-SL751-RIPE
admin-c: SL12644-RIPE
tech-c: SL12644-RIPE
status: ASSIGNED PA
mnt-by: FOS-VPN-MNT
created: 2016-10-17T23:24:00Z
last-modified: 2020-04-06T18:59:49Z
source: RIPE

Intelligence


File Origin
# of uploads :
1
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
Win32.Trojan.Delf
Status:
Malicious
First seen:
2020-05-01 21:28:09 UTC
File Type:
PE (Exe)
Extracted files:
48
AV detection:
27 of 31 (87.10%)
Threat level:
  5/5
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: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

GuLoader

Executable exe 280ebd2392e96c2017db58a6559696b0492370122272e05a01b4ec6d75eef33b

(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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::GetFileAttributesA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

Comments