Malicious PDF — malware analysis report

Static analysis result for SHA-256 f11eba13b609978d…

MALICIOUS

PDF

44.6 KB Created: 2020-08-06 23:13:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66eb243127153061f55745991673c453 SHA-1: 2244169e33ba2d73f3f4abf086548c85b06431be SHA-256: f11eba13b609978d5dc621d2512173c5fdf6c3b19a433c185ca10754bae69656
160 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, specifically mentioning parcel delivery and prize language. It embeds numerous links, with one critical heuristic identifying a redirector link to 'ttraff.com' which is associated with malicious activity. This suggests the PDF's primary purpose is to trick the user into clicking a link that leads to further malicious content, likely a download or phishing page.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=pdf+acrobat+reader+download+windows+xp
    • http://files.cninc.org/uploads/1/3/2/7/132740479/5324237.pdf
    • http://files.beautybyellav.com/uploads/1/3/1/8/131856112/f2a16f.pdf
    • http://files.savannahhphoto.com/uploads/1/3/1/3/131378918/winazisoxixewek_tidupu_wagomisifak_nekaje.pdf
    • http://files.danielalexandermatthews.com/uploads/1/3/0/7/130776542/visalo-boxisu-towetit.pdf
    • https://cdn.shopify.com/s/files/1/0432/8279/2612/files/achilles_tendonitis_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0431/2888/1313/files/zosafofu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1678/0951/files/86431489596.pdf
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/amls_completo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8051/4726/files/building_iphone_apps_with_html_css_and_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0437/9394/0629/files/pifumipesas.pdf
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/20431461488.pdf
    • https://cdn.shopify.com/s/files/1/0430/6518/0321/files/saxavodesusulanu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5668/5468/files/mibegubirelexigolixujug.pdf
    • https://cdn.shopify.com/s/files/1/0433/0618/8955/files/40802309538.pdf
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/zodotezizovidizodogebu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/66652060866.pdf
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/zodunamibizerifesafoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/tm_apostol_calculus_volume_2.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062b7.bin
eb98ec4931941472f677fdf05045117568bc52ff54ca07c71baea77c870ab84b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B7 5236 bytes
font_01_sfnt_off00007499.bin
cf534b490e572dcd80fdab92bb62f29bf863095dffb5d70705c7c05361ef511d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7499 10096 bytes
font_02_sfnt_off00009726.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9726 4324 bytes

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