Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca9452d412f2f0bd…

MALICIOUS

PDF

41.9 KB Authoring application: Soda PDF
MD5: b206e4bab8807235fb4fe25e00a0a39a SHA-1: a309e873771493253730ff70e3275ddf3a2046eb SHA-256: ca9452d412f2f0bd1ba9c9b473cd9d198e343f9e1400cdc198f42ae161440df1
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, a common technique for SEO poisoning or phishing. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a phishing or malicious download intent. The document body is heavily obfuscated and does not provide clear user-facing text, but the presence of a 'download' call-to-action heuristic suggests the primary goal is to trick the user into downloading a secondary payload via the embedded links.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://richardbrooksinvestigations.com/uploads/1/3/0/7/130775932/gutiwonavage.pdf
    • http://mmflackdesigns.com/uploads/1/3/0/5/130590653/lelir_vaburunu_zotapegifu.pdf
    • http://bocaipingtaizhizuo.f18.ebkf.org/uploads/1/3/0/4/130490609/1ad22deb9c6baf9.pdf
    • http://tcgplanet.com/uploads/1/3/0/7/130776648/4a39fd3.pdf
    • http://mail.radicalhealing.org/uploads/1/3/0/6/130621243/5800070.pdf
    • http://johntejada.net/uploads/1/3/0/5/130590481/mobujawifotomow.pdf
    • http://palletscriptures.com/uploads/1/3/0/8/130873930/3730419.pdf
    • http://pink-halo.org/uploads/1/3/0/3/130323355/6547161.pdf
    • http://sellingonline.today/uploads/1/3/0/4/130489082/mutogutavijewasinizo.pdf
    • http://www.clickshoppingonline.com/uploads/1/3/0/7/130740298/2933384.pdf
    • http://saintta.net/uploads/1/3/0/8/130874501/pupabaros_vegetenepiwi_xuludaterizus_siriv.pdf
    • http://quietrunlimited.com/uploads/1/3/0/7/130775760/pipojureviv.pdf
    • http://claredouglas.com/uploads/1/3/0/5/130590663/4090165.pdf
    • http://homefindhd.com/uploads/1/3/0/5/130545199/jakekawejivum_kokobedez_tapelezade.pdf
    • http://sar-casm.com/uploads/1/3/0/5/130539442/7583115.pdf
    • http://www.inflection-pnt.com/uploads/1/3/0/5/130590229/kozoda-sefaletopa-voxibarixuwe-kiwiwo.pdf
    • http://shastalakegardenproject.club/uploads/1/3/0/7/130776718/vagom.pdf
    • http://luc-id.net/uploads/1/3/0/2/130289799/9819894.pdf
    • http://visualkingdom88.com/uploads/1/3/0/7/130738701/borereta-zejazusivire-biwaxulovifudej.pdf
    • http://bataleur.ca/uploads/1/3/0/4/130478663/963b0f5a7.pdf
    • http://lajcccf.org/uploads/1/3/0/6/130604198/4804756.pdf
    • http://9oeyv.slpny.com/uploads/1/3/0/8/130813497/130813497.html#laravel+json+api+file+upload
    • http://bocaipingtaizhizuo.f18.e

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003f63.bin
de1ba4c7490ccc01aa6b97edb5c9c0dfae4d4cc06250a8ac65e4e1762457e4a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F63 9212 bytes

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