Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5b7d1d34ba8d37…

MALICIOUS

PDF

48.2 KB Created: 2020-08-08 03:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4eacff21415c16a59083f968c3744d85 SHA-1: 23849300d0d55d7476e2f0dcba01f0b6034c7ba1 SHA-256: fc5b7d1d34ba8d37ec07310083dffe913110448957c13da8694d28fa8e281f0f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=phenomenological+approach+qualitative+research+pdf, which is likely used to lure the user to a malicious site. The document also contains a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of malicious redirector links is a strong indicator of malicious intent.

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=phenomenological+approach+qualitative+research+pdf
    • http://files.doggiedoodlesbydina.com/uploads/1/3/2/8/132815748/padibusobipe_zaxulax.pdf
    • http://files.chrisstruykbonn.com/uploads/1/3/1/3/131398214/8231315.pdf
    • http://files.kofcwhitman.com/uploads/1/3/2/6/132682989/dd78a7e6.pdf
    • http://fulej.genewhitacrecpa.com/uploads/1/3/2/3/132302939/9152a1eda5de.pdf
    • http://files.citizensforenvironmentalstewardship.org/uploads/1/3/0/7/130739415/dedunigoxajim.pdf
    • https://cdn.shopify.com/s/files/1/0433/9489/1943/files/tapujanabibowumuwuro.pdf
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/78577988634.pdf
    • https://cdn.shopify.com/s/files/1/0436/3393/4496/files/20946333536.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/33419810873.pdf
    • https://cdn.shopify.com/s/files/1/0434/0911/3253/files/cervical_spine_radiculopathy_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0441/1247/8360/files/30392672240.pdf
    • https://cdn.shopify.com/s/files/1/0433/6903/7974/files/physics_constants_table.pdf
    • https://cdn.shopify.com/s/files/1/0437/8374/9781/files/white_rodgers_thermostat_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/wogadanezadopipedu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4230/8250/files/gaxosevaniwunelovimemu.pdf
    • https://cdn.shopify.com/s/files/1/0440/8590/3510/files/as_1594.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/benilenigi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/mugoxal.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_off00007b86.bin
334ed827d9a32ae6d6c3122c776896574576b45f663a419334caab53ea787bb9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B86 5756 bytes
font_01_sfnt_off00008ef4.bin
a12d4edbf9e45587804e3fed668f536517dd78e1284eb2b420f05217390fae20
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF4 10780 bytes