Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d28dc29eeb0e27…

MALICIOUS

PDF

42.9 KB Created: 2020-08-23 05:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1632bc9f0462f6597ccd2cc8cb81ab0 SHA-1: 03c9eb4d7681531c093cb05dab3ce737e424225e SHA-256: f2d28dc29eeb0e27486bbceec832665f5ddc3b7987995688f03cda4f142dac9e
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Another critical heuristic identified a PDF link farm, with one of the links pointing to a Shopify domain. The document body also contains a call-to-action phrase, suggesting a lure to encourage user interaction with the malicious links.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=clicksafety+osha+30+answers
    • http://files.thegreenmanandthegoddess.com/uploads/1/3/0/8/130814926/6534419.pdf
    • http://lipisosu.spsplusarchitects.com/uploads/1/3/0/8/130874493/8231377.pdf
    • http://files.treehousewisdomandwellness.com/uploads/1/3/1/4/131453498/685390.pdf
    • http://files.charisseabellana.com/uploads/1/3/2/7/132740723/lelib.pdf
    • http://files.ksssbf.org/uploads/1/3/0/8/130813511/637e3726724f998.pdf
    • https://cdn.shopify.com/s/files/1/0435/3818/6392/files/trisha_s_lullaby_piano_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/5050/7163/files/65938515998.pdf
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/jikexofoge.pdf
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/year_2_addition_and_subtraction_word_problems.pdf
    • https://cdn.shopify.com/s/files/1/0432/9196/7652/files/filezilla_android_apk.pdf
    • https://cdn.shopify.com/s/files/1/0457/9970/2694/files/counter_strike_1._35.pdf
    • https://cdn.shopify.com/s/files/1/0431/2281/9233/files/67270931858.pdf
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/indesign_label_templates_avery_5160.pdf
    • https://cdn.shopify.com/s/files/1/0434/4945/0663/files/adobe_acrobat_pro_convert_arabic_to_word.pdf
    • https://cdn.shopify.com/s/files/1/0439/1524/7771/files/divi_api_key.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_off000067a3.bin
b7c245ecab2e73ffa482c8a01dfc5d59f7a566d67d9bbf9a16e905ab2b4b1bf5
pdf-font-stream PDF embedded font (sfnt) at offset 0x67A3 5436 bytes
font_01_sfnt_off00007a1e.bin
0766124a671efa85dc4ac57beb753991b8f23c8329023ea67fa826438b5db92a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1E 10720 bytes