Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bb25753f51f704f…

MALICIOUS

PDF

36.8 KB Created: 2020-08-24 10:09:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4193f614bec92417ba432105d39e06ae SHA-1: 74eaa62adae2f3dba969152eb9708d283aa150df SHA-256: 7bb25753f51f704f7a8c71841c54a4efe3ea719f6abc8aa55acabfbc5c03b159
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lure users to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=flags+of+english+speaking+countries+worksheet. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering pretext. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=flags+of+english+speaking+countries+worksheet
    • http://files.teamsouthernseducers.com/uploads/1/3/1/1/131163634/wamewixon_fikido_gaweju_zifododevu.pdf
    • http://sufagozok.thomasfundraisingllc.com/uploads/1/3/1/4/131407406/bawokuxov_bewurogajama_dalariboje_bogusowadas.pdf
    • http://beximogep.kruisinkanines.com/uploads/1/3/0/8/130814788/xokedalazefobaxa.pdf
    • http://jivebalaz.paintnwithfriends.com/uploads/1/3/1/3/131383309/wejuledenuguve_punovep.pdf
    • https://cdn.shopify.com/s/files/1/0450/8853/8776/files/budhi_kaki.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/advanced_transport_phenomena_slattery.pdf
    • https://cdn.shopify.com/s/files/1/0437/5232/5272/files/65794700987.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7429/files/68251524736.pdf
    • https://cdn.shopify.com/s/files/1/0432/1892/7778/files/31059067621.pdf
    • https://cdn.shopify.com/s/files/1/0429/8850/3203/files/solimofawixiki.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9162/files/pituitary_hormones.pdf
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/xabevabujugijinowi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0132/3420/files/pupidifetifanela.pdf
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/1125687405.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_off00004352.bin
a59f5309d8db03d4eebd94260d0404cb049a7ac8d81b262e0a365b8f9d43eef4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4352 5272 bytes
font_01_sfnt_off0000554f.bin
84d627bd519e437500de5729afce60bc5d5c2931e46ce996b9d72b9eb7652daf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x554F 9696 bytes
font_02_sfnt_off00007687.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7687 4324 bytes

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