Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde4b8554b22f52c…

MALICIOUS

PDF

46.2 KB Created: 2020-08-21 04:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63363ae895181cb6fc6458d8aed5f5ed SHA-1: 99c0c8ef85db386cfcd9666fe06cbe4d717edc86 SHA-256: cde4b8554b22f52ca42a6eb2b7a0f779af2232fe6906b382fd1a35f3618f0307
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.com/pify?keyword=content+plan+template+facebook', is designed to lure users into clicking by appearing as a legitimate content plan template. The document body, though heavily obfuscated, contains this URL, indicating the document's intent is to drive traffic 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.com/pify?keyword=content+plan+template+facebook
    • http://fafevi.jpacperformingarts.com/uploads/1/3/1/8/131871745/zuwozedazose_zewuvepirogekir_puvedabofid_nonuwono.pdf
    • http://files.peduroqatar2019.net/uploads/1/3/1/4/131438003/2601751.pdf
    • https://cdn.shopify.com/s/files/1/0440/2987/0230/files/64014816569.pdf
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/60646722284.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1519/files/mcmi_iii_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/77161625175.pdf
    • https://cdn.shopify.com/s/files/1/0440/4084/7510/files/bullworker_exercises_chart.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/gamebemiludepuvaratewis.pdf
    • https://cdn.shopify.com/s/files/1/0435/9746/3714/files/4683399682.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/mikufif.pdf
    • https://cdn.shopify.com/s/files/1/0433/5550/4795/files/86608500198.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/93108777139.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5383/files/mibodufegodinudegufo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6759/5169/files/acute_gastroenteritis_in_adults.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/xadux.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_off00006a78.bin
96080610b780c17fe3db32ebaeff3eba9d79a3b834f7bedd3658d18643499b1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A78 4852 bytes
font_01_sfnt_off00007aeb.bin
3eb90334ec6f3b9f697d4362c75b00448124b09b5ed2332f5badb38592ca0164		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEB 10212 bytes
font_02_sfnt_off00009ddb.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDB 4324 bytes

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