Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2039283e608de6…

MALICIOUS

PDF

53.9 KB Created: 2020-08-13 05:48:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6276b16563f561a9ec9958fb0691ee27 SHA-1: 6b6d8dedea4b8e501f962538fd5db9cddd08d45d SHA-256: 1b2039283e608de6477933be37804cdadbea0e1d9e3a2addcd5f884be7c33f59
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at `https://ttraff.cc/wb?keyword=chavacano%20words%20pdf`. This indicates the document's primary purpose is to lure users to external sites, likely for malicious purposes such as phishing or malware delivery. No scripts were extracted from this sample.

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.cc/wb?keyword=chavacano%20words%20pdf
    • http://files.palsjamaica.org/uploads/1/3/2/7/132710748/c315858d3b.pdf
    • http://files.lucidartgallery.co/uploads/1/3/0/7/130738821/zegufezavofedoluweza.pdf
    • http://files.carolynbjohnsonphotography.com/uploads/1/3/1/4/131453543/loxutito.pdf
    • http://jowaka.westchestercinemaclub.com/uploads/1/3/1/6/131637814/358222e.pdf
    • http://kotin.msdanielledobeleit.com/uploads/1/3/0/7/130775162/1445057.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/48482210193.pdf
    • https://cdn.shopify.com/s/files/1/0439/4595/1400/files/blackroots_science_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/2100/7005/files/87874378522.pdf
    • https://cdn.shopify.com/s/files/1/0437/1149/6347/files/xufene.pdf
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/pukigibixewulizalixoxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/takarekedujubigo.pdf
    • https://cdn.shopify.com/s/files/1/0451/2792/5925/files/mawujemanedizotoxar.pdf
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/60823024252.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5300/files/fake_credit_card_info.pdf
    • https://cdn.shopify.com/s/files/1/0435/4995/0116/files/noes_de_administrao_financeira_e_oramentria_para_concursos.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/xekugixisevovis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/60967630872.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/15943011128.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_off0000958d.bin
ed69cdb3469bb27055314f258bf598e26b54d387ebc860342f4614680eccbb23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x958D 5268 bytes
font_01_sfnt_off0000a781.bin
d4489c8f2fe4bf6cd361b5091af2d81510634fe83b1abab7a998dcc9bbdb665a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA781 10772 bytes

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