Malicious PDF — malware analysis report

Static analysis result for SHA-256 859a0c0c1002d247…

MALICIOUS

PDF

35.8 KB Created: 2020-08-11 16:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 476a09ad627c53ab161319b45afcea7c SHA-1: a987406dadcb56522177d2d7cdb43713614617f2 SHA-256: 859a0c0c1002d247fc1d91012cf059dd94fef05430f81e73d322beb498593c26
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=diagnostic+interview+for+personality+disorders+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and benign-looking PDF titles, suggesting a social engineering lure. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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.com/pify?keyword=diagnostic+interview+for+personality+disorders+pdf
    • http://files.plainfieldspanish.com/uploads/1/3/1/1/131163943/desemaxare-binid.pdf
    • http://files.siderseffect.com/uploads/1/3/1/0/131070351/89067bc.pdf
    • http://files.greenwaymetalrecycling.com/uploads/1/3/1/3/131383204/pinasogi.pdf
    • http://files.parttimenightjob.com/uploads/1/3/2/6/132695531/zifanixe_xawaxetijulonu.pdf
    • http://wijuti.ottawaprayercenter.org/uploads/1/3/2/8/132814930/vufedalo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1615/8359/files/afrofuturism_2._0.pdf
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/2006_chevy_trailblazer_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/crash_team_racing_ps2.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/mugen_1._0_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/2518/4421/files/61849559499.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/31541476183.pdf
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/rukumilevezovotewiwofe.pdf
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/advanced_uav_aerodynamics_flight_stability_and_control.pdf
    • https://cdn.shopify.com/s/files/1/0434/6219/7400/files/xikamubilegafiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/7156/1116/files/52171857830.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/puwebozurafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5140/8799/files/fixapininijeno.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d5d.bin
322bd7195f50e591ece2adc4c2ec28e724ef840a2b2a989a8f3a8b0d0c74788a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D5D 5576 bytes
font_01_sfnt_off0000607b.bin
2875029f8b7fe452a037101b17d6fc4106728f1d0d9fea7361b942011771e3f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x607B 9764 bytes