Malicious PDF — malware analysis report

Static analysis result for SHA-256 b96dcc3dda004a8e…

MALICIOUS

PDF

36.1 KB Created: 2020-03-28 07:57:15 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 33fdfbbbe3a2ae70d84aa37af096245f SHA-1: e250bcb8192ea80a42042a8ddf28ef32e84937ae SHA-256: b96dcc3dda004a8e37040c4ba768e00262987fb14bc855becc2fc1c20d8fb27e
94 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body text, though partially corrupted, contains a lure related to downloading songs, directing the user to a specific URL. The primary attack pattern involves redirecting users to a network of malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://piccadillygh.com/uploads/1/3/1/3/131382223/131382223.html#short+film+telugu+mp3+songs+download
    • http://johngreendistrict18.com/uploads/1/3/0/4/130476359/nuzomiwigu_gitobamuv.pdf
    • http://webmail.biomediclife.com/uploads/1/3/0/7/130740521/velilevedirilav_silifit_wagexuronad.pdf
    • http://hostmaster.victor-design.de/uploads/1/3/0/7/130775634/4062868.pdf
    • http://vida-florida.org/uploads/1/3/0/2/130272880/97688d39.pdf
    • http://www.soubookkeepingandtaxessolutions.com/uploads/1/3/0/8/130874076/2652788.pdf
    • http://thelifeyouwant.org/uploads/1/3/0/2/130273576/9199975.pdf
    • http://littleriverwoodshop.com/uploads/1/3/0/4/130489567/bec67216a33cb7.pdf
    • http://pjclakes.com/uploads/1/3/0/6/130622032/metalesab.pdf
    • http://dmc-couriers.com/uploads/1/3/0/5/130543240/xeturikutowanugit.pdf
    • http://nuthoppers.com/uploads/1/3/0/2/130288592/fozezewetuxe.pdf
    • http://thatsmajeur.com/uploads/1/3/0/5/130542831/1575319.pdf
    • http://basauribai.com/uploads/1/3/0/4/130483795/rosavaza.pdf
    • http://sarahanneharris.com/uploads/1/3/0/9/130969659/7682604.pdf
    • http://appareldesignhouse.com/uploads/1/3/1/4/131406809/gadafabexofo.pdf
    • http://www.reisemobilansziel.com/uploads/1/3/0/8/130874477/xawujagiven-piseri-zujabunuzedov-gakareg.pdf
    • http://millerfamilylawn.com/uploads/1/3/0/5/130551208/zomufojufok-firovosu-fajulomip-givogixekuf.pdf
    • http://shop.thevillageyarnery.com/uploads/1/3/0/8/130874333/321022.pdf
    • http://www.luanakrausestudio.com/uploads/1/3/0/7/130740050/8269721.pdf
    • http://reiki.co.vu/uploads/1/3/0/5/130551309/8415455.pdf
    • http://techbitdaily.com/uploads/1/3/0/6/130621446/a6a42cae6f9c24e.pdf
    • http://kitchenandcraftevents.com/uploads/1/3/0/2/130289767/1ddb79f8e4836b.pdf
    • http://scottbrackenridgebuilders.co.nz/uploads/1/3/0/7/130774973/diwajabapivasufimuwi.pdf
    • http://thestylefactory.co.uk/uploads/1/3/0/9/130969717/zopisovorokozon_fevipizogezaza_nozijuti_navipazomara.pdf
    • http://www.sweetbrewhawaii.com/uploads/1/3/0/5/130544754/xolenepotadulozoti.pdf
    • http://chefreyscatering.net/uploads/1/3/0/6/130622093/5cab4827c.pdf
    • http://thestylefactory.co.uk/uploads/1/3/0/9/130969717/zopi
    • 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_off0000624d.bin
292957b301e35ea670d0a9db9537005f80cf64521652c2b0fbf70610da8a80fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x624D 7748 bytes

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