MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 83413a3a3f07ee931dbfecaefed51d0b01d2b13b85920bdd485f0b2ce41acba5. 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
| SHA256 hash: | 83413a3a3f07ee931dbfecaefed51d0b01d2b13b85920bdd485f0b2ce41acba5 |
|---|---|
| SHA3-384 hash: | 7bc82c63dfdbe632b1c288825fdf07a7e46e0d49b4caba1b382dbdc8b888ddf4a26eeae097777e23ab37c0791b148c9d |
| SHA1 hash: | 476b0b6b5c478e79bbdfb2bd157616342ea09a48 |
| MD5 hash: | fcf9ca55d0af5f40c5dbf0511efd1b5d |
| humanhash: | may-texas-neptune-nuts |
| File name: | PT. Atlas Copco PO AP-1-05-2020, pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 989'698 bytes |
| First seen: | 2020-05-01 13:37:13 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1c8a22c0423451ea1e4122bc2e70af18 (8 x GuLoader, 1 x RemcosRAT, 1 x AveMariaRAT) |
| ssdeep | 12288:Ui2KmIpZ7l+/yO3VhZjgMU4eB7hqcXdDt7ecxBOPY4Jvjg3FVLg904yp4lFyD:UFGl0ycAF1dDteqBOPYovEZ4y+gD |
| Threatray | 1'405 similar samples on MalwareBazaar |
| TLSH | B625AF63B2C04877D0731E78DD1B93689827BD612A2468C677F53D4C9F393A13A3A297 |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader nVpn RAT |
abuse_ch
Malspam distributing GuLoader:HELO: veeline.com
Sending IP: 103.227.62.236
From: PT. Atlas Copco Indonesia <christoph.angenendt@de.atlascopco.com>
Subject: Re: Quote AP-9-042020
Attachment: PT. Atlas Copco PO AP-1-05-2020, pdf.iso (contains "PT. Atlas Copco PO AP-1-05-2020, pdf.exe")
GuLoader pushing RemcosRAT via drive.google.com
RemcosRAT C2:
goddywin.freedynamicdns.net:5151 (91.193.75.6)
Pointing to nvpn:
% Information related to '91.193.75.0 - 91.193.75.255'
% Abuse contact for '91.193.75.0 - 91.193.75.255' is 'abuse@kgb-vpn.org'
inetnum: 91.193.75.0 - 91.193.75.255
netname: NON-LOGGING-VPN-SERVICE
descr: Please note that we don't store any user data.
descr: Our main effort is not to make money, but to preserve values like the
descr: freedom of expression, the freedom of press, the right to data protection
descr: and informational self-determination.
descr: We ask all employees of Spamhaus and all self-proclaimed deputy sheriffs
descr: to stop your attacks against us.
country: EU
admin-c: KA7109-RIPE
tech-c: KA7109-RIPE
org: ORG-KHd1-RIPE
status: ASSIGNED PI
mnt-by: RIPE-NCC-END-MNT
mnt-by: KGB-MNT
mnt-routes: KGB-MNT
sponsoring-org: ORG-MW1-RIPE
created: 2012-06-04T11:05:55Z
last-modified: 2019-12-05T05:39:00Z
source: RIPE
Intelligence
File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
Win32.Trojan.Injector
Status:
Malicious
First seen:
2020-05-01 14:36:05 UTC
File Type:
PE (Exe)
Extracted files:
57
AV detection:
27 of 31 (87.10%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'395 additional samples on MalwareBazaar
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
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
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_NX | Missing Non-Executable Memory Protection | critical |
| CHECK_PIE | Missing Position-Independent Executable (PIE) Protection | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| COM_BASE_API | Can Download & Execute components | ole32.dll::CoCreateInstance ole32.dll::CreateStreamOnHGlobal |
| SHELL_API | Manipulates System Shell | shell32.dll::ShellExecuteA |
| WIN32_PROCESS_API | Can Create Process and Threads | kernel32.dll::CloseHandle kernel32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | kernel32.dll::LoadLibraryExA kernel32.dll::LoadLibraryA kernel32.dll::GetSystemInfo kernel32.dll::GetStartupInfoA kernel32.dll::GetDiskFreeSpaceA kernel32.dll::GetCommandLineA |
| WIN_BASE_IO_API | Can Create Files | kernel32.dll::CreateFileA kernel32.dll::FindFirstFileA version.dll::GetFileVersionInfoSizeA version.dll::GetFileVersionInfoA |
| WIN_REG_API | Can Manipulate Windows Registry | advapi32.dll::RegOpenKeyExA advapi32.dll::RegQueryValueExA |
| WIN_USER_API | Performs GUI Actions | user32.dll::ActivateKeyboardLayout user32.dll::CreateMenu user32.dll::EmptyClipboard user32.dll::FindWindowA user32.dll::OpenClipboard user32.dll::PeekMessageA |
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