Malicious PDF — malware analysis report

Static analysis result for SHA-256 2edc7541c58af9ea…

MALICIOUS

PDF

63.5 KB Created: 2020-08-15 06:33:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46827ce77767e33a7d63a663bb84ef44 SHA-1: eca23369cf4399b7f439ec092c3779015ce42aa7 SHA-256: 2edc7541c58af9ea4469a9957bed1bf3dabb968e3c9f68de3fe07c8c86ee53e8
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, pointing to 'https://ttraff.com/pify?keyword=algebra+1+prentice+hall+answers+pdf'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to attract victims. No scripts were extracted, but the presence of the malicious redirector and the document's structure indicate a phishing or redirection attempt.

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=algebra+1+prentice+hall+answers+pdf
    • http://files.cashfromtreasures.com/uploads/1/3/1/3/131384025/mexorivumosate-wakobi-supufeg-suraminomaron.pdf
    • http://kenodu.theonestarsalon.com/uploads/1/3/0/8/130814328/sivubusukivuxibuz.pdf
    • http://files.bakingbeast.com/uploads/1/3/1/6/131607093/4031847.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/81005036538.pdf
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/16049316429.pdf
    • https://cdn.shopify.com/s/files/1/0430/4008/0021/files/90521710528.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5671/files/cerebral_venous_sinus_thrombosis_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/modern_control_engineering_ogata.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/forobosogaroso.pdf
    • https://cdn.shopify.com/s/files/1/0437/6117/2631/files/feniviwumufolivelafakenu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6756/3429/files/adductor_muscles_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/siriramaxirosamuxufav.pdf
    • https://cdn.shopify.com/s/files/1/0428/4180/0860/files/brain_edema_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0431/4667/4336/files/kagepasu.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fbc.bin
a8009e86eed1f8ca61ebacbf40569e6feaa2b4ee9ab17a74bb5bc651247ce14e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBC 5368 bytes
font_01_sfnt_off000081f7.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81F7 3720 bytes
font_02_sfnt_off00008d53.bin
de455705823839f0172f8942a67f6847e3d9fcf75f463e94b417bbeab10ba3c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D53 4376 bytes
font_03_sfnt_off00009934.bin
2b1882f14d358c39edbbb74dae5b1720deb9f16eeaab46c622ba62eeec007813		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9934 10196 bytes
font_04_sfnt_off0000bc34.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC34 4324 bytes
font_05_sfnt_off0000ca37.bin
5d78f519b5ea7263aa13d23bd4ddcdb339f66193aa575b1854efd669e302c011		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA37 12352 bytes

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