Malicious PDF — malware analysis report

Static analysis result for SHA-256 112c9e11c96231c4…

MALICIOUS

PDF

44.9 KB Created: 2020-05-22 20:44:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ebe5d8ebee12538cdc6156ca20b0cca3 SHA-1: 223df662b2ec10baaacc71947aaa13df478f741e SHA-256: 112c9e11c96231c4191e96d93b32be80b2f1e73d93fd48f3f8e5221be0b0bc90
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by an ML classifier and contains a large number of external links, indicating a link farm or SEO manipulation tactic. The document body, though partially corrupted, contains a URL that appears to be the primary lure. No scripts were extracted, but the presence of numerous external links suggests a potential for redirecting users to malicious sites or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://jacobsladderdeli.com/uploads/1/3/0/6/130603873/130603873.html#aura+kingdom+ranger+guide
    • http://monicarossa.com/uploads/1/3/0/3/130313803/bojutil_kosomoviz.pdf
    • http://itsolizeetv.com/uploads/1/3/1/3/131383981/721d14bd39c8.pdf
    • http://jesuswillacceptyou.com/uploads/1/3/0/4/130435594/robav.pdf
    • http://wepickwellness.com/uploads/1/3/0/3/130313265/8169213d07.pdf
    • http://gelatotroppobuono.com/uploads/1/3/0/4/130476607/xebatinajopajadona.pdf
    • http://tweeart.studio/uploads/1/3/0/6/130620889/86893a56d06e6.pdf
    • http://fitnessmattersblog.com/uploads/1/3/0/6/130604034/98845512e.pdf
    • http://mickbull.biz/uploads/1/3/0/2/130289756/2d2f586e3193292.pdf
    • http://escsectec39.com/uploads/1/3/0/5/130588505/bobamuxobufer.pdf
    • http://joyrebustesportfolio.com/uploads/1/3/0/5/130588201/45d91.pdf
    • http://sabarivtc.fr/uploads/1/3/1/4/131437668/nageravez_kutakoboxi.pdf
    • http://palomadiaz.com/uploads/1/3/0/5/130588435/8f60da358830.pdf
    • http://lavidawithwings.com/uploads/1/3/0/8/130813146/selizidorovap.pdf
    • http://billfeatherphoto.com/uploads/1/3/0/8/130813025/nakuniviseruxulimata.pdf
    • http://thesweetestcouple.com/uploads/1/3/0/2/130270747/0d6d7f53e0c52.pdf
    • http://maisonavendrelotfrance.com/uploads/1/3/1/0/131071159/dagonev_ziwonudaxafuk.pdf
    • http://bluewatertheatre.info/uploads/1/3/1/4/131438036/dalujunalepirolol.pdf
    • http://beachybathbombs.com/uploads/1/3/1/3/131398281/gegiziremivowofogijo.pdf
    • http://embraceurjourney.net/uploads/1/3/1/4/131438592/lubelizin-xovuwos-dodosepoziwiji-kosesopala.pdf
    • http://haitianamericandems.com/uploads/1/3/1/4/131438275/kegelorif-viduv.pdf
    • http://givinghomes.net/uploads/1/3/0/5/130541765/kasuvoji.pdf
    • http://nativeamericanmhs.com/uploads/1/3/0/6/130639910/tasom-guxasinazowepi-senulujawifisi-mejekivin.pdf
    • http://auster.be/uploads/1/3/0/3/130323515/vokipos_duxaxekogezid_jaforidananav_savutisanobowuj.pdf
    • http://bitgateds.com/uploads/1/3/0/7/130775346/9023444.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000735e.bin
628cda990a46aefa71d4c5fd2d7a8346f9dc316590d2b7a93c7828826ece3e3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x735E 4392 bytes
font_01_sfnt_off00008306.bin
f2624197727fb1ce20955bf5579774cdfa8ef48e7ca790bfbaed704ae56e2628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8306 10824 bytes

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