Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f354f4c1babd08…

MALICIOUS

PDF

51.3 KB Created: 2020-08-12 12:28:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e764146e20e8b724ca93dad7bb9e65c6 SHA-1: af9462c14b5b8786ec1b492764edaadc10fb4d43 SHA-256: 56f354f4c1babd088d7c1c06d629960e7ef9bbf2f54c45cc6f36a118d22d4d72
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. It also exhibits a PDF link farm, with many links pointing to Shopify domains, likely for SEO manipulation. The document body contains a call-to-action phrase and the malicious URL, suggesting a lure to trick users into visiting the redirector. No scripts were extracted from this sample.

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=abbyy+flexicapture+tutorial+pdf
    • http://files.jlraskin.net/uploads/1/3/1/8/131871849/rukim.pdf
    • http://files.wsparkscontracting.com/uploads/1/3/1/4/131438847/gemiwaja_nedusefudisi_berumokeva_badujojojekopo.pdf
    • http://files.nicole-bramble-illustration.com/uploads/1/3/0/7/130775242/2795023.pdf
    • https://cdn.shopify.com/s/files/1/0430/7723/8945/files/systematic_theology_anthropology.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4940/files/segapam.pdf
    • https://cdn.shopify.com/s/files/1/0431/7803/3303/files/71162516720.pdf
    • https://cdn.shopify.com/s/files/1/0430/2068/1369/files/kokun.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/6009635024.pdf
    • https://cdn.shopify.com/s/files/1/0449/4403/1899/files/free_to_word_converter_software_download_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/35344292958.pdf
    • https://cdn.shopify.com/s/files/1/0433/8489/7692/files/18421901445.pdf
    • https://cdn.shopify.com/s/files/1/0434/1969/7308/files/88496322618.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/human_biological_diversity.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067ac.bin
ac66ddecb1889e99694234647e4a1e19b6174440e696c9ee44c6cb9711419273
pdf-font-stream PDF embedded font (sfnt) at offset 0x67AC 3312 bytes
font_01_sfnt_off0000738d.bin
1d2fc743f89201fbdb051039c8504dff6d2597282137f51ebe0b494d6f83cdf4
pdf-font-stream PDF embedded font (sfnt) at offset 0x738D 5272 bytes
font_02_sfnt_off0000858e.bin
db8ab8b6ada4521c9982cc546a06fbc3dc164be6996dc58ce9a5f32376540421
pdf-font-stream PDF embedded font (sfnt) at offset 0x858E 10616 bytes
font_03_sfnt_off0000aa05.bin
f3b95f1269985bafc3dfb9b5b35e76df8a4d57039a143c013aed99c7cf3a4a89
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA05 16344 bytes