Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c54006ee4eab9e…

MALICIOUS

PDF

46.5 KB Created: 2020-08-26 16:45:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba138fd3f7204384e4ed82029b165f03 SHA-1: fcf90a175bb5834abdb4809983ef64219f41360d SHA-256: 49c54006ee4eab9eac3ae793365fdfcd2e1027e7249a68570d381eb9afbdaa83
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text related to 'girlfriends guide to divorce' and the malicious URL 'https://ttraff.cc/pify?keyword=girlfriends+guide+to+divorce+day+and+time', suggesting a lure to a malicious site. The presence of a link farm further indicates an attempt to distribute malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=girlfriends+guide+to+divorce+day+and+time
    • http://files.goldendaleobservatory.com/uploads/1/3/1/4/131406049/48622ac2797a78.pdf
    • http://dowasime.ccpdiscoveryschool.com/uploads/1/3/1/6/131606490/fedawosorolib.pdf
    • http://files.joescottportfolio.com/uploads/1/3/1/1/131164476/aeddc64f815b.pdf
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/risijebumezukeriwenof.pdf
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/xenetisunotuw.pdf
    • https://cdn.shopify.com/s/files/1/0450/2241/2958/files/sword_art_online_progressive_manga_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/bevezuzamo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9176/files/2145158092.pdf
    • https://cdn.shopify.com/s/files/1/0433/8666/7158/files/36546973681.pdf
    • https://cdn.shopify.com/s/files/1/0440/9327/6312/files/probability_and_queueing_theory_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/5671/7224/files/sisisazuxijozizupupaxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/4535/4658/files/brackets_software_free_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/tavitutevurob.pdf
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/sodik.pdf
    • https://cdn.shopify.com/s/files/1/0431/8212/9320/files/bst_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0439/2547/1400/files/estudio_agrologico_v_region.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/8006/files/blast_furnace_iron_making_process.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_off000075a5.bin
0b127e4b45db1572ef98bdac2263b394141531baf281e4b5e5b2f24fc90b7ced
pdf-font-stream PDF embedded font (sfnt) at offset 0x75A5 5532 bytes
font_01_sfnt_off0000886f.bin
5521d3c3c7903a207d27883f9fbfde8997480cadcceb0d7cb228edc56849aafa
pdf-font-stream PDF embedded font (sfnt) at offset 0x886F 10580 bytes