MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02. 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: 7


Intelligence 7 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02
SHA3-384 hash: f9713512ca31c044cdbfe36c6fc4f691e63b053a411b2138ca45913ebc91794cdeab630f364c498b0c44a0daf0c1d276
SHA1 hash: f3518c05dfde7326e790e2ef3f5f326e802c697d
MD5 hash: 7dce6bf2d8631a69ccb35b0f708b7cd1
humanhash: shade-island-maine-mars
File name:Technisches Datenblatt.7z
Download: download sample
Signature GuLoader
Create hunting rule
File size:372'987 bytes
First seen:2023-06-13 06:35:24 UTC
Last seen:2023-06-13 06:43:02 UTC
File type: 7z
MIME type:application/x-7z-compressed
ssdeep 6144:zbJzULqBofdCcIkgx9ZKBElMMK7dJCtsOqhdHTq8O01sthrdBZC2ehNPpwsXDTf9:zbJLBofdCpfx9gBhxLsqrHTR1ghiNRwu
TLSH T1D484231EDCB3E7A14F18A42A5A7B6C596DB77A1E4213A63F42C4CE9B03E15C444C4E78
Reporter cocaman
Tags:7z GuLoader


Avatar
cocaman
Malicious email (T1566.001)
From: "tschanzurs@swissonline.ch" (likely spoofed)
Received: "from mx1.majormedia.de (mx1.majormedia.de [85.25.240.9]) "
Date: "Mon, 12 Jun 2023 12:10:29 +0000"
Subject: "E-mail: Technisches Datenblatt"
Attachment: "Technisches
Datenblatt.7z"

Intelligence

File Origin
# of uploads :
5
# of downloads :
101
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:Technical Datasheet.exe
File size:456'912 bytes
SHA256 hash: 4d6ae0a40fcc30fab170c3e70dd5076253ddf9fa6ec0886d39cffbd9df99ae52
MD5 hash: 6fdcd23a0e0164e2c53ea690e900008a
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.7Zip_fs3401.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64880e5328381b85ed1a2056/reports/5e72d8c7-2b15-4774-8f0c-348f93d20eee/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02
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.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-06-12 17:07:04 UTC
File Type:
Binary (Archive)
Extracted files:
77
AV detection:
15 of 37 (40.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kornb3ekhc7aljxbvubf5iva2pgeqpwwb422k4vq7t4jo6ual4ba._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:guloader collection downloader keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230613-jcykbsfh41/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Program crash
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks QEMU agent file
Loads dropped DLL
AgentTesla
Guloader,Cloudeye
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

GuLoader

7z 53a2d0ec8a38be05a6e1ad025ea2a0d3cc483ed60f35a572b0fcf8977a805f02

(this sample)

GuLoader

Executable exe 4d6ae0a40fcc30fab170c3e70dd5076253ddf9fa6ec0886d39cffbd9df99ae52

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 4d6ae0a40fcc30fab170c3e70dd5076253ddf9fa6ec0886d39cffbd9df99ae52
  
Dropping
MD5 6fdcd23a0e0164e2c53ea690e900008a

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