Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bdcd6e138995e30…

MALICIOUS

PDF

43.9 KB Created: 2020-08-25 02:29:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90f6ad8f1e62bfe1a066c459f795bfd2 SHA-1: 265db2f34ef978795f7ee58103ef0e95c1bb5551 SHA-256: 7bdcd6e138995e30ef0a66762ba202bb30545d49b8e38299e2cb9a422313b5df
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.com/pify?keyword=sharepoint+hr+portal+templates, points to known malicious redirector infrastructure. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or to download further malware. 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.com/pify?keyword=sharepoint+hr+portal+templates
    • http://files.bwmusic.net/uploads/1/3/0/7/130775027/pejifi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4151/3894/files/airline_safety_ratings_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/9886/3771/files/charge_of_the_light_brigade_poem_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/keloid_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0457/5651/4460/files/malukibifovanuzarisigo.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2821/files/xopogido.pdf
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/bodyweight_fitness_program.pdf
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/node_random_string.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/59880551436.pdf
    • https://cdn.shopify.com/s/files/1/0440/9131/0232/files/teenage_christian_books.pdf
    • https://cdn.shopify.com/s/files/1/0427/8570/2054/files/15819638416.pdf
    • https://cdn.shopify.com/s/files/1/0432/8567/6188/files/vertical_adjacent_complementary_supplementary_angles_worksheet.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_off00006667.bin
0d5ccf1209e3943e28279b94d7f18034686bdae76497f2bd4592f4051a1c0a72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6667 5160 bytes
font_01_sfnt_off000077b3.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77B3 1800 bytes
font_02_sfnt_off00008040.bin
93cd25b804bf24c661ae946068f66e073c23c2cc20fbcb95bba5c991099f89c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8040 10076 bytes

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