Malicious PDF — malware analysis report

Static analysis result for SHA-256 506153d7b200fa1b…

MALICIOUS

PDF

47.3 KB Created: 2020-08-11 21:24:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d094e58f9bffe357fb90b156b1ad002 SHA-1: b291b70788edb89edd9dc81ca04255f155c562fd SHA-256: 506153d7b200fa1b17d0e2a0c605b63eac0310c031476e9aa757f0ad003cb5e0
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. This suggests a link farm or SEO poisoning tactic to lure victims. The document body, though heavily corrupted, contains the URL 'https://ttraff.ru/pify?keyword=loraine+boettner+pdf', indicating the primary lure. No scripts were extracted, and the PDF structure itself does not indicate exploitation, but rather social engineering via a deceptive link.

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.ru/pify?keyword=loraine+boettner+pdf
    • http://files.paxsonscience.com/uploads/1/3/0/7/130740051/lixumuxubadud_jilubiga_gizasiwuvawev_sezexaxi.pdf
    • http://files.windhoekradioflyers.com/uploads/1/3/0/7/130776490/nafetu-gevotoxi-wekamovomupuli-dofaxutemetawuz.pdf
    • http://files.whiterosemarathons.co.uk/uploads/1/3/2/8/132814241/dudawenubigezejub.pdf
    • https://cdn.shopify.com/s/files/1/0434/7602/5501/files/coffee_stained_paper.pdf
    • https://cdn.shopify.com/s/files/1/0434/7143/7984/files/zebitos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdf
    • https://cdn.shopify.com/s/files/1/0438/3506/4480/files/42829781220.pdf
    • https://cdn.shopify.com/s/files/1/0447/9506/8567/files/2020_cadillac_sts_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1397/1861/files/watch_digmon_online.pdf
    • https://cdn.shopify.com/s/files/1/0448/0807/7473/files/equality_vs_equity_in_education.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/71905485218.pdf
    • https://cdn.shopify.com/s/files/1/0437/0422/1846/files/kimuxikabuxavedigisa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2499/8819/files/pawedovibiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8167/8494/files/7897219483.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/hierarchy_of_needs_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8392/files/changing_firefox_font_size.pdf
    • https://cdn.shopify.com/s/files/1/0439/0833/3736/files/21361799738.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_off00006861.bin
a796af9c4443d4428762357f36992911afd89b6744c8074aa02b90941f1a386d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6861 5160 bytes
font_01_sfnt_off00007a38.bin
525dd4aadb4e82a301c03bee87732ec39a39a75ec330274b37f9c4f7e5121908
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A38 4908 bytes
font_02_sfnt_off00008aee.bin
9418a1e519989816ec42f8920aa77115389383bfdebbba2cb0d96e5a70773062
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AEE 10596 bytes