Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1b7c6acbb97744…

MALICIOUS

PDF

37.3 KB Authoring application: Scribus First seen: 2020-09-24
MD5: 3ca332865f8a8441d215e8305ede090d SHA-1: 277973fca53d14ca9897acd7dc2a2a6381e82bdc SHA-256: 7b1b7c6acbb97744448d655207d5adeb6578ef8c6c07eec4e7fd7214d86cb0e4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing lure. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mybrokersells.net/uploads/1/3/0/7/130740231/5275767.pdf In PDF document text
    • http://verticalfitness100.com/uploads/1/3/0/2/130272443/7767268.pdfIn PDF document text
    • http://hotelpetfranchising.com/uploads/1/3/0/7/130738946/sujijikiripole.pdfIn PDF document text
    • http://barriebasketball.com/uploads/1/3/0/5/130589430/gikekemetuxudipojar.pdfIn PDF document text
    • http://athywaterways.com/uploads/1/3/0/8/130814004/459988.pdfIn PDF document text
    • http://roundrockeventplanners.com/uploads/1/3/0/3/130313564/bibaj.pdfIn PDF document text
    • http://stacheyourcat.com/uploads/1/3/0/4/130435715/rasewijiti-dezepujala-napavususuxa-tariwo.pdfIn PDF document text
    • http://myonebighappyphotography.com/uploads/1/3/0/7/130739956/mubojenefat-xowukalovala-vakinupoxovi.pdfIn PDF document text
    • http://hasbropowerrangers.com/uploads/1/3/0/3/130324203/fcb2dd9.pdfIn PDF document text
    • http://weblacarte.com/uploads/1/3/0/3/130323789/c2e9c5c.pdfIn PDF document text
    • http://newcovenantinspections.com/uploads/1/3/0/6/130639217/nexefororu-rukekumoxatezuk-podena-kegexafilajab.pdfIn PDF document text
    • http://aliveatfive.org/uploads/1/3/0/6/130639883/dexekewafava.pdfIn PDF document text
    • http://fancyfeatheredfarm.com/uploads/1/3/0/6/130639197/db5e97891c9836d.pdfIn PDF document text
    • http://mx.adornkids.com/uploads/1/3/0/6/130640024/26d0f.pdfIn PDF document text
    • http://bobbodagreen.com/uploads/1/3/0/8/130814341/xowojukutipisurukiva.pdfIn PDF document text
    • http://osvaldogiuliani.com/uploads/1/3/0/6/130603994/guluxelow-xagexerinuz-xidejawexuse.pdfIn PDF document text
    • http://buzzfanzine.com/uploads/1/3/0/7/130776590/2374179.pdfIn PDF document text
    • http://artbygirls.com/uploads/1/3/0/5/130544703/9804764.pdfIn PDF document text
    • http://thefourfuries.com/uploads/1/3/0/5/130543168/tidojipazekopuxunulu.pdfIn PDF document text
    • http://nxlevelgolf.com/uploads/1/3/0/7/130739529/ronovibajapanijefel.pdfIn PDF document text
    • http://x0065289xstreamtravel.xsideas.com/uploads/1/3/0/6/130639157/130639157.html#additional+protocol+i+to+the+geneva+conventions+of+1949In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D8 7892 bytes
SHA-256: 73ccf419df734562283e1c70241b68351406212676c941f70164077bf920c3b4