MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 85074105fcf885e2d29488b314fad614984de34934e12e00348cb3762d8d0333. 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: 3

Intelligence 3 IOCs YARA 3 File information Comments

SHA256 hash:	85074105fcf885e2d29488b314fad614984de34934e12e00348cb3762d8d0333
SHA3-384 hash:	fab1ece0382a36834acf89490f72aa33ef09a0c1b12be6aca838f06045ae3d48f74280e98364bdb518fd357e3c6f0b05
SHA1 hash:	86dd53d1f55c64b80201ba89a3ca673772e7aa81
MD5 hash:	a15a1d60c9a516913916f113f4290c58
humanhash:	orange-fruit-mars-victor
File name:	Invoice.xlsm
Download:	download sample
Signature	GuLoader Create hunting rule
File size:	13'120 bytes
First seen:	2020-05-08 08:56:47 UTC
Last seen:	Never
File type:	xlsm
MIME type:	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep	192:HelCvbWRm/3GyrVin6s/yp/rPHJ6+TT9Sv2ajHqY:He2bxPGyX9zPHJPHQua+Y
TLSH	EC42AE79DDA22079C3B5883FA4AC0357140430439383BC992C24A6A1AB95ED723CE7DB
Reporter	abuse_ch
Tags:	GuLoader nVpn RAT RemcosRAT xlsm

abuse_ch

Malspam distributing GuLoader:

HELO: mta0.infocompany.cf
Sending IP: 165.227.212.172
From: Samsung Electronics<info@infocompany.cf>
Reply-To: info@infocompany.cf
Subject: RE:PURCHASE ORDER.
Attachment: Invoice.xlsm

RemcosRAT payload URL:
https://onedrive.live.com/download?cid=CFD8E120D47DF1A4&resid=CFD8E120D47DF1A4%211145&authkey=AAnhYSIwy-lKy3I

RemcosRAT C2:
185.140.53.29:2019

Hosted on 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 :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

Xls.Dropper.Agent-7775074-0

Gathering data

Threat name:

Document-Word.Downloader.Rdn

Status:

Malicious

First seen:

2020-05-09 02:28:00 UTC

AV detection:

14 of 31 (45.16%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=quducbp47cc6fuuurczrj6wwcsme3y2jgtqs4aburszxmlmnamzq._file

Verdict:

unknown

Result

Malware family:

n/a

Score:

10/10

Tags:

n/a

Link:

https://tria.ge/reports/201109-9zlyrh8886/

Behaviour

Enumerates system info in registry

Modifies Internet Explorer settings

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Checks processor information in registry

Office loads VBA resources, possible macro or embedded object present

Blacklisted process makes network request

Process spawned unexpected child process

Malware Config

Dropper Extraction:

https://onedrive.live.com/download?cid=CFD8E120D47DF1A4&resid=CFD8E120D47DF1A4%211145&authkey=AAnhYSIwy-lKy3I

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:	SharedStrings Create hunting rule
Author:	Katie Kleemola
Description:	Internal names found in LURK0/CCTV0 samples

Rule name:	win_alina_pos_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	win_gootkit_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator