MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 084f59705fb0a98883454b511a2939f6ed91e9c04b7a2d7f8cb13ec834ec5215. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 084f59705fb0a98883454b511a2939f6ed91e9c04b7a2d7f8cb13ec834ec5215
SHA3-384 hash: d07141050f75554235ddd9f47200cfba6de5eb97dd1d521b1ea88a52f55099fb3a4c16f16c2f30eea056a0dd2637bb27
SHA1 hash: 949578725228909ffff575b8e2a7b397e6097585
MD5 hash: 30e90b61102da9d9132f6ccbfd286b73
humanhash: nuts-cardinal-early-glucose
File name:30e90b61102da9d9132f6ccbfd286b73
Download: download sample
Signature GuLoader
Create hunting rule
File size:23'753 bytes
First seen:2022-01-27 09:40:05 UTC
Last seen:2022-01-27 11:51:27 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 384:mclEQg51J0ueRkFia4w686BuAuO8IYQ5sM+JNeG9HDFAdJY7:mc6Wpna4w686BuAuOFLNUeGhDKdJo
TLSH T160B2987EB69B8E4CDB17D295041ABEA60669F41CA3C444C1BBBCE7347F1C9478B21638
Reporter zbetcheckin
Tags:CVE-2017-11882 GuLoader rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
320
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
30e90b61102da9d9132f6ccbfd286b73
Verdict:
Malicious activity
Analysis date:
2022-01-27 09:43:44 UTC
Tags:
opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/262ec7f8-e567-4dbf-9cc6-58eeab51cbe9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Detection(s):
Sanesecurity.Malware.27301.RtfHeur.BadVer.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.RTFFakeVersionWithObjUpdateUKSurfMix.20200514.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Searching for synchronization primitives
Sending a custom TCP request
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Creating a file in the %temp% directory
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/084f59705fb0a98883454b511a2939f6ed91e9c04b7a2d7f8cb13ec834ec5215/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control.exe embedequation exploit shell32.dll shellcode
Link:
https://www.filescan.io/uploads/61f2687ed73ca9d46492b5b3/reports/8792d3af-0da2-4662-b884-b15e61df400d/overview
Result
Verdict:
MALICIOUS
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/928837
Behaviour
Behavior Graph:
n/a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/084f59705fb0a98883454b511a2939f6ed91e9c04b7a2d7f8cb13ec834ec5215/
Threat name:
Document-RTF.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2022-01-25 11:43:15 UTC
File Type:
Document
Extracted files:
5
AV detection:
17 of 43 (39.53%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
suricata
Link:
https://tria.ge/reports/220127-lm8t6aaehm/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Enumerates physical storage devices
Drops file in Windows directory
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.99
Link:
https://yomi.yoroi.company/submissions/084f59705fb0a98883454b511a2939f6ed91e9c04b7a2d7f8cb13ec834ec5215

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:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.

File information

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

Web download

GuLoader

Rich Text Format (RTF) rtf 084f59705fb0a98883454b511a2939f6ed91e9c04b7a2d7f8cb13ec834ec5215

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2008893/

Comments


Avatar
zbet commented on 2022-01-27 09:40:06 UTC

url : hxxp://172.245.119.43/invoice/inv_shp0000.wbk