Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af71390a80677c9…

MALICIOUS

PDF

59.2 KB Created: 2020-03-16 02:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d1a5a95ee534af7b97f256ad12c6bf72 SHA-1: f068bc58ff7b040f57b64eb7d9324c82afa16f96 SHA-256: 9af71390a80677c982ed3a950118817ff1e0a8bd562400dc3316763c3750d11b
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are numerically slugged PDFs, indicating a link farm or SEO poisoning tactic. The document body text, though partially obfuscated, contains a lure related to "flowers pictures" and a download call-to-action. The presence of numerous external links, including one pointing to an HTML file with a similar lure, suggests the primary purpose is to redirect users to potentially malicious content or download further stages.

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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://movetheword.org/uploads/1/3/0/5/130550731/130550731.html#good+morning+flowers+pictures+images+free
    • http://www.zold.virtus.hu/uploads/1/3/0/7/130775796/gigobikokogu.pdf
    • http://pawsitive-dog-training.com/uploads/1/3/0/5/130588497/1622641.pdf
    • http://www.tonykoros.com/uploads/1/3/0/5/130538994/1605117.pdf
    • http://brisbaneblonde.com/uploads/1/3/0/6/130621952/zurepurubag_panixonigeleku_jedumol.pdf
    • http://www.infopics.net/uploads/1/3/0/6/130604110/dosixa.pdf
    • http://www.blasrphotos.com/uploads/1/3/0/8/130874498/3700762.pdf
    • http://mdmaternityaccess.org/uploads/1/3/0/5/130544635/a7c555cd67fea.pdf
    • http://www.gicarepro.com/uploads/1/3/0/4/130483417/muzozagi.pdf
    • http://tastegobble.com.au/uploads/1/3/0/6/130620603/3225550.pdf
    • http://mail.thefrontpaige.com/uploads/1/3/0/5/130539414/461482.pdf
    • http://www.pbpshychicentertainments.co.uk/uploads/1/3/0/8/130813612/5531843.pdf
    • http://www.milankarol.me/uploads/1/3/0/4/130490193/kanapegimaj.pdf
    • http://boomerangpilatesandwellness.com/uploads/1/3/0/7/130775263/xukovizegabe.pdf
    • http://mta-sts.pagegraphics.ca/uploads/1/3/0/7/130776695/tasukob.pdf
    • http://cpanel.foliageclovis.com/uploads/1/3/0/8/130813841/senag.pdf
    • http://www.topofthemoutaingraphics.com/uploads/1/3/0/5/130589033/faxiresawuz-dekasogafifu-dikipoluvuj.pdf
    • http://www.katehuntermusic.co.uk/uploads/1/3/0/4/130489564/jowuvebex.pdf
    • http://www.fiveopals.com/uploads/1/3/0/6/130621500/bejarovebogopu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009b14.bin
fa97d0284cbb2d2cd1b31bc1d0b5bf60c7fbb28be0424657f6fb55eb11a1593c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B14 7648 bytes
font_01_sfnt_off0000b8b7.bin
92287d3dcef542b0b28dbf537bfe8cc9eb305db7bf42b98560cc96a5f8498b0d
pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B7 14088 bytes