Malicious PDF — malware analysis report

Static analysis result for SHA-256 975875be3eb9deae…

MALICIOUS

PDF

39.9 KB Created: 2020-04-01 16:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: dc34feed7675e9b507efc467c65187fe SHA-1: e379a039b5edd44564150a48c15d94371333d45f SHA-256: 975875be3eb9deae50b2b9c6e9b2bc6964bcea9b203930dee0c3620561c069de
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a reference to 'Motorola baby monitor mbp36 instructions' and the primary URL points to a similar topic, suggesting a lure for users seeking product information. The numerous links to various domains, all following a similar pattern of numeric slugs and PDF extensions, indicate a likely SEO manipulation or link farm tactic to distribute malicious content or drive traffic. No scripts were extracted from this sample.

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://projectpolarbear.com/uploads/1/3/0/4/130476141/130476141.html#motorola+baby+monitor+mbp36+instructions
    • http://odroslore.com/uploads/1/3/0/5/130590509/9967649.pdf
    • http://klaycentric.ca/uploads/1/3/1/3/131379820/sinamowixuwopid.pdf
    • http://stdimitriouslillylane.com/uploads/1/3/0/9/130969999/wufiva_dejatapugebokub.pdf
    • http://ariseandshineministries.com/uploads/1/3/0/6/130639642/fuvafupuzize.pdf
    • http://ecartorio.com/uploads/1/3/0/8/130814017/tabikafolibokek_dowigow_zuxuzawerona.pdf
    • http://weiwu1214.com/uploads/1/3/0/4/130476687/wurevuxetivoginoru.pdf
    • http://mystoryinalocket.com/uploads/1/3/0/2/130272928/2671939.pdf
    • http://gerryread.com/uploads/1/3/0/4/130435654/5b783e67068c.pdf
    • http://shoptheclubhouse.com/uploads/1/3/1/3/131398358/sepunononevemu-wemipewezupuwer-roxebilenavud-ninuli.pdf
    • http://spennconrail.com/uploads/1/3/0/6/130604243/786c88.pdf
    • http://thesovereigntymovement.com/uploads/1/3/0/5/130590153/pakifaxobabat.pdf
    • http://visionsusa.org/uploads/1/3/0/4/130435511/5261433.pdf
    • http://darlingdoulas.com/uploads/1/3/0/5/130590613/4977453.pdf
    • http://dripdripplumbingsuncitywest.com/uploads/1/3/0/2/130271224/6926263.pdf
    • http://myminecraft.net/uploads/1/3/0/7/130739653/7303425.pdf
    • http://istolo.ca/uploads/1/3/0/4/130436130/sexisado-mowoweferero-fogifagaxeregir-vefopuvamelined.pdf
    • http://sharingspaceforgrief.com/uploads/1/3/1/3/131384667/tujukiligenizo-wuxiregegozata.pdf
    • http://iguanasurfschool.com/uploads/1/3/0/8/130813301/39952.pdf
    • http://happycamperllc.com/uploads/1/3/0/5/130590244/44b9a6ec3.pdf
    • http://thetresna.com/uploads/1/3/0/4/130476555/jejonejusiti.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_off000071cb.bin
4448910eee4a1299b9d9eab725891509d116fe4989f4eb3cd85bc9be51a71862		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71CB 8340 bytes

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