Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbb7aa95f5875cbb…

MALICIOUS

PDF

44.1 KB Authoring application: pstoedit First seen: 2020-08-10
MD5: 4b6d93661fdec162738c976fe51bee53 SHA-1: 71ace54f3a71eba2b4f041b04117dc86cea1e499 SHA-256: bbb7aa95f5875cbb59bcd390beed55fc0f1716e83e78713022b65ff8b5f75bb7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO poisoning attack, aiming to redirect users to potentially malicious content. The ClamAV detection further supports its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://divorcecoachchicago.com/uploads/1/3/0/4/130477009/5862364.pdf In PDF document text
    • http://midwestcraftshows.com/uploads/1/3/0/4/130492889/69c869704.pdfIn PDF document text
    • http://talknique.com/uploads/1/3/0/3/130313038/ludoberovek.pdfIn PDF document text
    • http://conniezator.com/uploads/1/3/0/3/130313005/poloxelexib-movofomokopopi-vepeloxoxal.pdfIn PDF document text
    • http://mensthings.net/uploads/1/3/0/8/130813592/sojufufifawap.pdfIn PDF document text
    • http://liviace.me/uploads/1/3/0/6/130604467/9018739.pdfIn PDF document text
    • http://spoiledvapers.ca/uploads/1/3/0/5/130539238/tavujewurit.pdfIn PDF document text
    • http://contractlawtraining.com/uploads/1/3/0/5/130588295/3135807.pdfIn PDF document text
    • http://syxgems.org/uploads/1/3/0/7/130739938/5857118.pdfIn PDF document text
    • http://natalia.tech/uploads/1/3/0/6/130639059/ee892c439.pdfIn PDF document text
    • http://flyyover.com/uploads/1/3/0/6/130620873/raluno_pomujidudija_liwafi.pdfIn PDF document text
    • http://sarinabenn.com/uploads/1/3/0/6/130604231/3894613.pdfIn PDF document text
    • http://tjtlzy.com/uploads/1/3/0/4/130483847/nipiwo.pdfIn PDF document text
    • http://grupointerastar.com/uploads/1/3/0/5/130588499/ziwogowubitap_luwimuwuxud_momuji.pdfIn PDF document text
    • http://minocquasurf.com/uploads/1/3/0/3/130324350/66176dd.pdfIn PDF document text
    • http://myrnaphillips.com/uploads/1/3/0/4/130489253/51e42.pdfIn PDF document text
    • http://scottgieser.com/uploads/1/3/0/5/130588644/9821030.pdfIn PDF document text
    • http://grupadinar.com/uploads/1/3/0/2/130289426/maroxasuwufovon.pdfIn PDF document text
    • http://baraspektrum.com/uploads/1/3/0/6/130620436/9602843.pdfIn PDF document text
    • http://equinoxtalks.com/uploads/1/3/0/3/130379222/dugukogiwezono-forujomuw-dulivusipagawu.pdfIn PDF document text
    • http://networkbusinessconsulting.eu/uploads/1/3/0/4/130435624/7721486.pdfIn PDF document text
    • http://aeroagt.com/uploads/1/3/0/4/130489696/7192412.pdfIn PDF document text
    • http://wearethepack.com/uploads/1/3/0/2/130287878/nofosi.pdfIn PDF document text
    • http://pooltexrepair.net/uploads/1/3/0/5/130588893/tewalo.pdfIn PDF document text
    • http://millsupportzuid.com/uploads/1/3/0/5/130588973/1042e7885f71fcf.pdfIn PDF document text
    • http://webdisk.atpb.com.au/uploads/1/3/0/8/130814056/130814056.html#how+to+prove+the+angle+bisector+theoremIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

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_off0000308e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308E 16072 bytes
SHA-256: eb3eb75404dce3ff5138856fdb64036719bdd557a5f8c062583c2614eddde746
font_01_sfnt_off00004815.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4815 7992 bytes
SHA-256: c83861f9d34ab341fa2b18a074a044c3cbf56821bc3fe35cfdc055711d773878

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