Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65725d37c27e8f7…

MALICIOUS

PDF

60.4 KB Created: 2020-08-06 01:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92f5dd628b61bd96539bd5d0c17350ff SHA-1: 50ef32f07a01ae0aeb009bf7f57caff2336a00d3 SHA-256: d65725d37c27e8f74a499ff243454940214c8ccc18dce66bccc4ee7c0d067465
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is embedded within the document body, suggesting a phishing or scam attempt disguised as a book download. The PDF also contains a large number of external links, indicating a link farm for SEO manipulation or traffic redirection. No scripts were extracted from this sample.

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=bonang+matheba+book+pdf+download
    • http://zereliw.landfallcert.com/uploads/1/3/0/8/130815017/6065373.pdf
    • http://xobeluka.purposeqi.com/uploads/1/3/1/4/131406086/2670090.pdf
    • http://files.education-pathways.com/uploads/1/3/2/3/132302963/b752ed2.pdf
    • http://pugew.robertomiatelloarchitetto.com/uploads/1/3/0/8/130873876/74e5e5bf5.pdf
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/24196918348.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/89920029553.pdf
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/33581001948.pdf
    • https://cdn.shopify.com/s/files/1/0433/2909/3800/files/magup.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/zesogasipelazewaberewubax.pdf
    • https://cdn.shopify.com/s/files/1/0429/2490/0515/files/bovozotajofafugurup.pdf
    • https://cdn.shopify.com/s/files/1/0434/4053/7750/files/24509711009.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0711/files/49191632426.pdf
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/26251352372.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0775/files/51792264714.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_off0000af0a.bin
bde20900c18f168d0fca07097073f2af4dd721667e8e49973771b6fc4fc1c8b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF0A 5524 bytes
font_01_sfnt_off0000c1c6.bin
a5a83981c722a18b2318049c9b35d91c0927efb9cd31830228c0b10426341775		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1C6 10204 bytes

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