Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1062532b570befe…

MALICIOUS

PDF

51.2 KB Created: 2020-08-17 15:23:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a9ae50829b179d09486c8830a4d5b7 SHA-1: a71505ac4ee3fc25dc6f41579d74d840fce11e2f SHA-256: f1062532b570befe3952fc58bd0ce0a37a686e3489b8b0e582fbebfc86d4bd21
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=best+punjabi+couple+pics'. The document body also contains this URL, suggesting it's the primary lure. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0431/8180/1629/files/clocks_and_calendars_aptitude_problems.pdf'. The presence of these links indicates an attempt to direct users to potentially harmful content.

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=best+punjabi+couple+pics
    • http://files.lgbtmalaysia.com/uploads/1/3/1/6/131606876/98ad073e9441.pdf
    • http://zejesufi.unofficialkaleo.com/uploads/1/3/1/4/131408791/1089233.pdf
    • http://nidenogeb.clearlightastrology.com/uploads/1/3/0/8/130874629/nunalow-babekimelufin-javerad-xumefelikebedof.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/clocks_and_calendars_aptitude_problems.pdf
    • https://cdn.shopify.com/s/files/1/0433/9433/4869/files/7025928306.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/fuxisavajevemon.pdf
    • https://cdn.shopify.com/s/files/1/0432/9163/9966/files/use_of_articles_in_english_grammar_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0436/3173/9033/files/skitarii_codex_7th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/0253/5840/files/kakekebewuba.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/26767434151.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9789/files/58789804517.pdf
    • https://cdn.shopify.com/s/files/1/0437/6349/9159/files/fifuwiliwekevaxu.pdf
    • https://cdn.shopify.com/s/files/1/0436/8780/5081/files/driver_san_francisco_ps3.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b68.bin
fa63b72206afe6c0ae2a75b21a77e0fe048ca72a7429cba23151f59176d47879		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B68 5096 bytes
font_01_sfnt_off00005cca.bin
5f77129fb045ac670f769aa70ac8c427320cbee7deae05f3e51c02e85b23b2f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCA 5264 bytes
font_02_sfnt_off00007069.bin
9216ded12097a923d397d36ed2a10280ff83b38dd3dbf285a58c76af40d3c73c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7069 5716 bytes
font_03_sfnt_off000084a2.bin
46348a35d82269ed39ce179f44e6d8306d84f84f3b83d53e77304f9f5559f9d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84A2 9648 bytes
font_04_sfnt_off0000a5d2.bin
2fb4472408282fee1e77092acb01a419272c0c0ce9356c4e1b9de35a92d1b0b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5D2 18328 bytes

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