Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fdd35e197c19a24…

MALICIOUS

PDF

38.7 KB Authoring application: Adobe PDF Library 9.0 First seen: 2020-09-24
MD5: 61ef9ae21b6195eb52a29073ae9448f9 SHA-1: c7b0daddddd347511bf11d9e9025c9468565174e SHA-256: 0fdd35e197c19a24926dcdca13164933a2505dc9b9f52bd46e963c538e0ba899
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on various domains, a technique often used for phishing or distributing further malware. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. The embedded URLs are likely part of a link farm designed to obscure the true destination or to host malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://hostmaster.brenner-robotika.org/uploads/1/3/0/3/130379635/a6f7dd39cad1c66.pdf In PDF document text
    • http://thetruthaboutarthurspector.net/uploads/1/3/0/5/130545475/zenelubuv.pdfIn PDF document text
    • http://bbartbyangelica.com/uploads/1/3/0/2/130270866/55d9d7.pdfIn PDF document text
    • http://mypinktoys.com/uploads/1/3/0/6/130640094/gixunefozekuz.pdfIn PDF document text
    • http://real4to.com/uploads/1/3/0/4/130477170/cb002e6bf.pdfIn PDF document text
    • http://northstarmedics.com/uploads/1/3/0/4/130476130/af54ecd2954cdc.pdfIn PDF document text
    • http://6foot7dave.com/uploads/1/3/0/6/130621583/228394.pdfIn PDF document text
    • http://desatascossantacolomadegramenet.com/uploads/1/3/0/8/130814065/ca5932eb6edbe.pdfIn PDF document text
    • http://viviantung.com/uploads/1/3/0/6/130621706/1031307.pdfIn PDF document text
    • http://untabvel.store/uploads/1/3/0/6/130604804/525f71.pdfIn PDF document text
    • http://dns.fernleyrepublicanwomen.com/uploads/1/3/0/6/130621089/f2b335980.pdfIn PDF document text
    • http://host26.thefulfillmenthouse.com/uploads/1/3/0/3/130323286/lopododofoze.pdfIn PDF document text
    • http://www.fourfeathersphoto.com/uploads/1/3/0/5/130550830/2c94cd3.pdfIn PDF document text
    • http://altec-hn.com/uploads/1/3/0/2/130291527/8732462.pdfIn PDF document text
    • http://narskuuttelu.com/uploads/1/3/0/7/130739326/1928912.pdfIn PDF document text
    • http://www.coramworkforcemodelling.com/uploads/1/3/0/6/130639931/5105869.pdfIn PDF document text
    • http://www.divamusicfestival.com/uploads/1/3/0/5/130539734/vakew-xotagu-rexekirekizegiz-befizakuwoz.pdfIn PDF document text
    • http://meansixteen.com/uploads/1/3/0/5/130588987/pedokikota-xunemojakotexe.pdfIn PDF document text
    • http://www.hunytung.com/uploads/1/3/0/5/130550966/fodubimesusalonopun.pdfIn PDF document text
    • http://x0524609xstreamtravel.xsideas.com/uploads/1/3/0/3/130313307/130313307.html#best+hiit+workout+for+fat+loss+at+homeIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E26 2732 bytes
SHA-256: 50224c6c483bfa86a10f62efd7baa2c756f8036c0a911ebd537387e21b2fb6f3
font_01_sfnt_off000039f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39F0 7292 bytes
SHA-256: 146cb327dc4e1b89f0f09a251df541d81ddad179dcc898440a0a154bae23a3aa

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