Malicious PDF — malware analysis report

Static analysis result for SHA-256 8737ab1b5de4e92d…

MALICIOUS

PDF

40.8 KB Created: 2020-08-25 00:08:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ca5f933552eb2a2f08d5808010d7824 SHA-1: d4f29827a0dc758a86a20562e66ec6c9840c1f3d SHA-256: 8737ab1b5de4e92d4b9e99b30c1a886d886ab0331e075eecc891f44270c12c4e
120 Risk Score

Malware Insights

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

The PDF file contains a lure question about 'iqra' and embeds multiple links. One critical heuristic identified a malicious redirector link (https://ttraff.cc/pify?keyword=what+is+the+full+form+of+iqra), indicating an attempt to redirect the user to a malicious site. Another heuristic flagged a PDF link farm, suggesting the document is designed to host numerous external links, likely for SEO poisoning or distributing further malicious content. 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/pify?keyword=what+is+the+full+form+of+iqra
    • http://files.skylinebitandspur.com/uploads/1/3/1/4/131453464/gazofokososebixoze.pdf
    • http://files.viking-bay-area.com/uploads/1/3/1/4/131437932/dobawola.pdf
    • http://files.northwestanalogue.com/uploads/1/3/0/7/130775792/xotevapifu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/anexos_simples_nacional_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/danedogorolulefumatexa.pdf
    • https://cdn.shopify.com/s/files/1/0436/5503/7093/files/41851759025.pdf
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/40149924655.pdf
    • https://cdn.shopify.com/s/files/1/0435/3458/1911/files/community_law_manual_trees.pdf
    • https://cdn.shopify.com/s/files/1/0444/0260/6246/files/satellite_photogrammetry.pdf
    • https://cdn.shopify.com/s/files/1/0433/8909/1989/files/zodikozawimobomugewukeva.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/alexandra_kohan.pdf
    • https://cdn.shopify.com/s/files/1/0429/1274/3591/files/65077866286.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/texojorigerusoxuduk.pdf
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/74160754501.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_off000061c8.bin
d376d423f37b2f41c062417b90f21d63dce2876b6ae32fd67d8dd1f9ebf65ad1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C8 5148 bytes
font_01_sfnt_off00007337.bin
a0763899d145e43406fe89e0a1ee0ee3317bb8f63c8cce6d78a2ca6dee2b167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7337 10260 bytes

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