Malicious PDF — malware analysis report

Static analysis result for SHA-256 b22eaf6a6b3c4a6d…

MALICIOUS

PDF

44.2 KB Created: 2020-03-29 02:39:17 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: e0608b181b2df8fd4465123085c92a12 SHA-1: 3f8250ee567d40c396459c72c59b4005aa047441 SHA-256: b22eaf6a6b3c4a6d490dfbc7c0dfcc55e68f234b8f27cd6394f11e5ac1b365fa
96 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm or SEO poisoning attack, embedding a large number of external links disguised as content related to "Dungeons and Dragons 5th edition sorcerer build". The primary heuristic indicates a mass external PDF link farm, suggesting the intent is to drive traffic to numerous unrelated PDF documents hosted on various domains. The ML classifier strongly supports the malicious nature of this PDF.

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://shardexplorers.com/uploads/1/3/0/5/130543155/130543155.html#dungeons+and+dragons+5th+edition+sorcerer+build
    • http://distilledadventures.com/uploads/1/3/0/9/130969175/vopaxono-debit.pdf
    • http://bethanyannthomas.com/uploads/1/3/0/9/130969972/7462325.pdf
    • http://beckyjonescookiesandcakes.com/uploads/1/3/0/2/130272945/4031babe.pdf
    • http://mackenzieemievents.com/uploads/1/3/0/6/130604892/zimojobumafu-sukisu-femarutebero-segozirifinat.pdf
    • http://yogaclothingphotography.com/uploads/1/3/0/9/130969762/bepuzagiro-nixozilevuvebas-josuran.pdf
    • http://diariesofdespair.com/uploads/1/3/0/8/130814430/42f06.pdf
    • http://nguyentandung.net/uploads/1/3/0/3/130379237/a0e52eb920096.pdf
    • http://abalonofcalifornia.com/uploads/1/3/0/2/130289510/c601e483732bd.pdf
    • http://myanalogworld.com/uploads/1/3/0/8/130814769/bf400.pdf
    • http://pshandcrafted.com/uploads/1/3/0/7/130739897/turodukizosip_kiletoxam_julilokuvajike_tadafu.pdf
    • http://chaarly.net/uploads/1/3/0/5/130539287/891c07dd9f27.pdf
    • http://guardianskingdom.com/uploads/1/3/0/7/130776031/kitirip.pdf
    • http://thedronedog.co.uk/uploads/1/3/0/5/130539599/857254.pdf
    • http://bethevibration.com/uploads/1/3/0/4/130483940/fiziraxigorotepalu.pdf
    • http://challengedhouses.com/uploads/1/3/0/5/130551298/tagipuboj_loxeju_vorukur.pdf
    • http://www.motherstouchmedical.com/uploads/1/3/0/6/130604892/5063541c48eff6.pdf
    • http://www.thelibbymuseum.org/uploads/1/3/0/4/130435986/8972d.pdf
    • http://maggiealex2019.com/uploads/1/3/0/2/130270946/efd7cc.pdf
    • http://www.bibbyschocolate.com/uploads/1/3/0/5/130588394/114c0bf02c.pdf
    • http://market7.shop/uploads/1/3/0/5/130550986/pubozaz.pdf
    • http://pragueprivatetransfers.com/uploads/1/3/0/6/130639212/misatul-gulamuriwid.pdf
    • http://polardisposal.com/uploads/1/3/0/2/130289542/zizekasejotof_wejupa_komamazurileken.pdf
    • http://fitxpouk.co.uk/uploads/1/3/0/7/130739235/rukegetezuwevev_bugib_nofisukipenumap.pdf
    • http://menthings.net/uploads/1/3/0/8/130814355/xosoguk.pdf
    • http://nmcawomenscricket.com/uploads/1/3/0/7/130739718/007890910fe40e.pdf
    • http://fitxpouk.co
    • 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_off000082a9.bin
c7c42171567cab2ebe3428518dbeb9f56017a51cbefd6f145070436f2a1281ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A9 8364 bytes

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