Malicious PDF — malware analysis report

Static analysis result for SHA-256 9862f53e1ef5a017…

MALICIOUS

PDF

44.6 KB Created: 2020-08-12 15:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16ea87e8650c09b8b511ae70fe438585 SHA-1: ee8bc80eacfc22a5f0b1480d6f0ba5538ba2a3fe SHA-256: 9862f53e1ef5a0176db7c33a471124e06f67bf16486708acd869d2212f85828e
128 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to Shopify domains, but one critical link redirects through ttraff.ru, a known malicious redirector. This indicates a lure to a malicious site, likely for phishing or malware delivery. The document body, though heavily obfuscated, contains the target URL and references to 'accrual basis vs cash basis pdf', suggesting a deceptive lure.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=accrual+basis+vs+cash+basis+pdf
    • http://gifapigu.dare-h2020.org/uploads/1/3/1/6/131606289/fisavaxaxupez-xaruj-bipemuwogi-subefimawajujo.pdf
    • http://takuzin.thestadiumview.com/uploads/1/3/2/3/132303382/xozibijodifawelupuj.pdf
    • http://files.nrityayogsutra.com/uploads/1/3/0/9/130969204/0b60a95815404a.pdf
    • http://files.paulsfranchiseleague.com/uploads/1/3/1/4/131438249/kabuvoxije_kuvorenuzixuw_raxejusub.pdf
    • http://sikizos.anniesshineandsparkle.com/uploads/1/3/0/7/130738714/3157006.pdf
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/bozuxufuvupimonaxo.pdf
    • https://cdn.shopify.com/s/files/1/0428/4284/9446/files/fudepirojokabuxa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5406/4028/files/23801607171.pdf
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/anemia_peru_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/40367427960.pdf
    • https://cdn.shopify.com/s/files/1/0433/5550/4794/files/56993437660.pdf
    • https://cdn.shopify.com/s/files/1/0449/5913/7951/files/conflitos_no_ambiente_de_trabalho.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0316/files/83937550283.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/design_diaries_creative_process_in_graphic_design_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7657/4620/files/85863344895.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/19887168063.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonuxifipepi.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_off0000705c.bin
70344bcf55d30358886480aeed93ebed3332cb2dfa993506893e8ec19b41709c
pdf-font-stream PDF embedded font (sfnt) at offset 0x705C 5432 bytes
font_01_sfnt_off000082cd.bin
04589fbb53dd2f35ddbc5cfd23e1230d2148de414fffee3757e39dd03123d402
pdf-font-stream PDF embedded font (sfnt) at offset 0x82CD 10160 bytes