Malicious PDF — malware analysis report

Static analysis result for SHA-256 79f6c3b01a098415…

MALICIOUS

PDF

39.0 KB Created: 2020-03-10 07:27:59 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b62c808d63514aa419c96d589bc5e926 SHA-1: dc2cbd5560dd36a52ec12c26c5f3817773d89fac SHA-256: 79f6c3b01a0984156ab9820efb01bab59431be6a0e2e040274554f86493bb3d4
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains text and embedded URLs that mimic instructions for installing Adobe Acrobat Reader, a common social engineering tactic. The presence of numerous external PDF links, many pointing to suspicious domains, and an invisible link to a suspicious domain indicates a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall structure and URL patterns suggest a downloader or redirector for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://t5dt8l.bdgct.com/uploads/1/3/0/5/130588168/130588168.html#adobe+acrobat+reader+dc+installeren+windows
    • http://parkwayharbour.com/uploads/1/3/0/3/130313305/limugebiguromofutawo.pdf
    • http://bremenfamilymartialarts.com/uploads/1/3/0/7/130739934/8234350.pdf
    • http://triparoundmyworld.com/uploads/1/3/0/5/130550854/7257996.pdf
    • http://ocfertilitycare.com/uploads/1/3/0/5/130540282/fafudotudefina_posewu.pdf
    • http://knowledgelord.com/uploads/1/3/0/6/130621708/xaxamawezivupegelut.pdf
    • http://rusticindustrial.co.uk/uploads/1/3/0/7/130775174/xovozile-jujutanidav-kijifelexezisil.pdf
    • http://www.lukeandjustice.brickyardphoto.com/uploads/1/3/0/3/130379769/3556848.pdf
    • http://minnehahalawns.com/uploads/1/3/0/5/130589276/pizuzofem.pdf
    • http://www.dartvalleyworkshops.co.uk/uploads/1/3/0/7/130738707/segamavimozolitopi.pdf
    • http://exploringchiangmai.com/uploads/1/3/0/6/130605270/2858214.pdf
    • http://pallavimani.com/uploads/1/3/0/5/130550874/pekikumadobuzaduboz.pdf
    • http://strategicinsightadvisors.net/uploads/1/3/0/6/130603810/84d290968.pdf
    • http://contact.dng.ie/uploads/1/3/0/7/130775503/jemakulixexulod-lejonetujevo-litavofo-timixibovisi.pdf
    • http://a1412531xstreamtravel.xsideas.com/uploads/1/3/0/7/130775174/jabefetulut.pdf
    • http://www.kkmsungroup.com/uploads/1/3/0/6/130605018/xitisatevaj.pdf
    • http://beach24h.com/uploads/1/3/0/5/130550813/jonisazumupopoguma.pdf
    • http://server-secure-portal0.online/uploads/1/3/0/5/130551310/jewigoxosupo.pdf
    • http://wendoverconsultants.com/uploads/1/3/0/7/130775017/japepar.pdf
    • http://hunterbragg.com/uploads/1/3/0/6/130639278/jivir_vozoresov_pilisinokifi.pdf
    • http://www.newresume2019.com/uploads/1/3/0/6/130639517/topaligifopofu-legenowi.pdf
    • http://soaringfish.com/uploads/1/3/0/6/130604133/novixogesota.pdf
    • http://www.hayamodernartgallery.com/uploads/1/3/0/7/130775529/a6e0cd53dac.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007040.bin
ebb13368630169ade21d8a18198e09807bcf5124d13d900c8f88c8f85bd4fe89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7040 7788 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.