Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cf103910e51597…

MALICIOUS

PDF

48.1 KB Created: 2020-08-17 01:07:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d2c86f02899726460cd0ae966c5f9a9 SHA-1: d59c8e1cd7512f22413539c910aabfb8f6070f0b SHA-256: 46cf103910e51597872a9a15fe06ea51f36016fe0d0369b5e5049a100b369866
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=report+a+human+rights+violation'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0432/7515/7670/files/backhoe_attachment_for_skid_steer.pdf'. The document body, though heavily obfuscated, contains the redirector URL, suggesting the primary intent is to drive users to malicious sites.

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=report+a+human+rights+violation
    • http://files.iambriontv.com/uploads/1/3/2/8/132815045/2442759.pdf
    • http://files.mariachristinepericozzi.com/uploads/1/3/2/7/132741194/zosoxane_pijimutatim_fuvalubopimuwi_bikejew.pdf
    • http://loxugo.limocleveland.org/uploads/1/3/0/9/130969742/ladivokadumedig-narifa-bozogofomuxes-jowakam.pdf
    • http://files.brewsterranchandtack.com/uploads/1/3/1/8/131871433/liziseradajib-gipusape-jajula.pdf
    • https://cdn.shopify.com/s/files/1/0432/7515/7670/files/backhoe_attachment_for_skid_steer.pdf
    • https://cdn.shopify.com/s/files/1/0433/9469/5329/files/23098259059.pdf
    • https://cdn.shopify.com/s/files/1/0429/2375/3635/files/55340841364.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
    • https://cdn.shopify.com/s/files/1/0437/2417/7557/files/vosure.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/49596494860.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/sozemep.pdf
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/tamil_movie_songs_kuttyweb.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9557/files/english_sentences_with_tamil_meaning.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_off00007e5b.bin
2561b4c019c7bfa61697ea5fe326694331b88422e9fcc4c21df442fb95d40807		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5B 5300 bytes
font_01_sfnt_off00009048.bin
f1592238d4bdeebdf4a3d448fe4d2a27b9d8d0cb3ac695966c9d4714ca34a68a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9048 10432 bytes

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