Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0bc0531f750d10…

MALICIOUS

PDF

57.1 KB Created: 2020-09-17 08:30:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdac92862f737543318831571c0b4003 SHA-1: 21432fbfd116a5dbc981f96b7c3a3b915b317432 SHA-256: 8e0bc0531f750d1067d434cbe5b0bb3b93a33fa75033824e537e763dd737e415
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a prominent link that redirects to a malicious URL, disguised as a movie download. This is further supported by heuristics indicating a malicious redirector link and a link farm, suggesting an attempt to drive traffic to potentially harmful sites. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.me/wix?keyword=black+panther+full+movie+watch+online+in+hindi+filmywap
    • http://porolimep.katie-alexander.com/uploads/1/3/2/6/132696128/fimafate.pdf
    • http://binis.charsrestaurant.com/uploads/1/3/0/7/130776180/nuditotuduvadub.pdf
    • http://zilezoze.investwithsmdc.com/uploads/1/3/2/8/132814956/zutuzifixi.pdf
    • http://sazinixem.globalempireinternational.com/uploads/1/3/0/8/130874063/8841551.pdf
    • http://ninibato.worksoffreedom.com/uploads/1/3/2/8/132814170/mazobumoso_vevuwuwepig_zusopom_denijerorur.pdf
    • http://files.yestocake.com/uploads/1/3/0/8/130814052/10e86bba.pdf
    • http://jetogupar.sccoprivatepracticeclub.com/uploads/1/3/0/9/130969600/c3923.pdf
    • http://tevov.elvenelysium.com/uploads/1/3/0/7/130739297/9483732.pdf
    • http://files.covenantgrafton.com/uploads/1/3/2/6/132682070/rodatubutav.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6322/files/71612082237.pdf
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/tewibokukawifosib.pdf
    • https://cdn.shopify.com/s/files/1/0481/1525/3411/files/89778171773.pdf
    • https://cdn.shopify.com/s/files/1/0435/3005/9927/files/brunswick_family_campground_in_brunswick_md.pdf
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/kalolikawokagosujojulud.pdf
    • https://cdn.shopify.com/s/files/1/0435/9494/0573/files/wowajizuxox.pdf
    • https://cdn.shopify.com/s/files/1/0439/9942/8766/files/70971551561.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/45526822613.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066dc.bin
02fe345a792e34a83b18dc87063a65ae185075c319f0b2a38730ed47d1211840		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66DC 3052 bytes
font_01_sfnt_off000071d4.bin
81d88e1178781671d4cea1edc39e99dd7629a7aeb38f23fc99367741189d5f96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D4 5468 bytes
font_02_sfnt_off00008446.bin
3d5addff4d45d03dfea2d38cfb5d970498c99e27c80aae6263a3e493edc508ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8446 8196 bytes
font_03_sfnt_off00009af0.bin
85cbc9f900b01f4e40c953baf2644534781bdf0842b0c65051babf8c73ddfd4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF0 14088 bytes
font_04_sfnt_off0000c7d5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D5 4324 bytes

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