Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdce4def296cd0a6…

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 18:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 593e4f21e582ed432dbf75a5870e1843 SHA-1: e76e5dcb949691b54eeab404fe51f3fe17ca4c73 SHA-256: bdce4def296cd0a6d5a7253893490a3c30e683323e4f1278fe7f9aacc20ee303
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external links, indicating a link farm strategy. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=high+strangeness+adventure+time'. The document body contains garbled text but includes the same malicious URL and several other PDF links, reinforcing the attack pattern. No scripts were extracted, and the family is unknown due to the generic nature of the PDF link farm.

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=high+strangeness+adventure+time
    • http://files.coloradojuniorcup.com/uploads/1/3/1/6/131606598/labiboduwi.pdf
    • http://files.artyhair.com.au/uploads/1/3/2/6/132695492/4070243.pdf
    • http://files.apluscollegeconsult.com/uploads/1/3/0/8/130813769/dfe1a12351.pdf
    • http://files.sifrew.com/uploads/1/3/1/4/131406558/guzerotikeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pamuzinesikajojefex.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/lamob.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/21285984761.pdf
    • https://cdn.shopify.com/s/files/1/0429/6258/3711/files/kajubut.pdf
    • https://cdn.shopify.com/s/files/1/0428/8879/0179/files/76842052864.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37263727017.pdf
    • https://cdn.shopify.com/s/files/1/0428/5405/6092/files/super_mario_bros_3_wad.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7020/files/fallout_4_moveto_player.pdf
    • https://cdn.shopify.com/s/files/1/0438/0485/2386/files/dont_trust_the_bitch_in_apartment_23.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/11600619621.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_off00007632.bin
46aadcb36255d40ca0d1dd9c183f39417f69d4c4ae6f42f178be699e41f34e08		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7632 5228 bytes
font_01_sfnt_off000087da.bin
7bce10dfe445a67aeb610228d65bb574584f01848c4455d71aa321f298b686ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87DA 10060 bytes

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