Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffdab558c9e4211a…

MALICIOUS

PDF

45.6 KB Created: 2020-03-23 04:13:31 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 43c33428ec9a727cbda486086ae274d8 SHA-1: aed1d1c76d099af12facdff9e66c524637444f20 SHA-256: ffdab558c9e4211ab8aef16f1e92d7b00c4c9b33b25e6f32b8d35c0c334d8b7e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content. The document body contains metadata suggesting it was generated by wkhtmltopdf, and the embedded links are likely intended to manipulate search engine results or lead users to malicious sites. No scripts were extracted, limiting the analysis of direct execution capabilities.

Heuristics 3

  • 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.
  • 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://speelkoning.net/uploads/1/3/0/6/130621337/130621337.html#gestion+de+calidad+pdf+libro
    • http://finplancg.com/uploads/1/3/0/4/130483428/2978883.pdf
    • http://ishanrealtor.com/uploads/1/3/0/9/130969647/lukexixopubateluruje.pdf
    • http://spectreanalysis.com/uploads/1/3/0/5/130543169/gepunurum_kefix_pitugupusome_pupefepefona.pdf
    • http://gastricbypassdoctors.com/uploads/1/3/0/8/130873918/1742737.pdf
    • http://kathleensilks.com/uploads/1/3/0/6/130604788/poxoterofivamuvazeni.pdf
    • http://thegreenbunnystore.com/uploads/1/3/0/5/130551700/4aebb4ef52.pdf
    • http://kenya-help.org/uploads/1/3/0/5/130551013/b5cb26.pdf
    • http://tasticle.com/uploads/1/3/0/5/130551229/dejizeravapux_zafon_wanada_xelasefepitumu.pdf
    • http://helpmedomore.com/uploads/1/3/0/8/130814120/e2965660f.pdf
    • http://runningtoosuccess.com/uploads/1/3/0/5/130539093/gufime-juselo-fekoru.pdf
    • http://hostmaster.opticomm.nl/uploads/1/3/0/4/130483163/a91c5240b0dc1.pdf
    • http://galenetics.org/uploads/1/3/0/5/130588213/92b3438e04571.pdf
    • http://annemarieguarnieri.com/uploads/1/3/0/6/130639518/f3dbbe2126.pdf
    • http://cutleryclubofamerica.com/uploads/1/3/0/6/130604243/9204652.pdf
    • http://www.zhangyiliwork.com/uploads/1/3/0/4/130435888/fijitiremo-zururimal-xajojer-nunikurusev.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_off000086b8.bin
3140ba33c3687e76aa3ac5de86d208108ee5f3708c11f2557972da9922c25e1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86B8 9144 bytes

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