Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d1547b2e4f52a2e…

MALICIOUS

PDF

47.9 KB Created: 2020-08-04 01:20:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75e168ec138372c9a2d30fde2ca79a8e SHA-1: 95c62c2bdba667e35cfae7cbfeb934edafa9fe3b SHA-256: 1d1547b2e4f52a2e5f436490aef4406b5e90748bf2ebbd973178f6320a2487ef
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=holy+quran+with+bangla+pronunciation+pdf'. This indicates the document is designed to lure users to a malicious site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, further supporting the malicious intent. No scripts were extracted, but the embedded URLs are sufficient to classify the attack pattern.

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.ru/pify?keyword=holy+quran+with+bangla+pronunciation+pdf
    • http://files.conservationsupport.net/uploads/1/3/2/7/132740747/dedikezowomumuzamu.pdf
    • http://files.cmefonline.com/uploads/1/3/1/4/131406448/389ed5007187.pdf
    • http://files.seawatchingestaca.com/uploads/1/3/2/6/132680933/7764598.pdf
    • https://cdn.shopify.com/s/files/1/0433/7339/6133/files/wupinuvugaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/8461/1737/files/31477249974.pdf
    • https://cdn.shopify.com/s/files/1/0437/7460/7514/files/5357738487.pdf
    • https://cdn.shopify.com/s/files/1/0433/8640/5022/files/95292124484.pdf
    • https://cdn.shopify.com/s/files/1/0429/1156/3932/files/what_does_acquiesce_mean_in_a_sentence.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/kodajiwesimevuxofivamun.pdf
    • https://cdn.shopify.com/s/files/1/0432/2515/3698/files/79502917515.pdf
    • https://cdn.shopify.com/s/files/1/0441/4413/2248/files/kizij.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6896/files/xerometiguwetakabizaf.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/nemutu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/91272012066.pdf
    • https://cdn.shopify.com/s/files/1/0435/4405/1864/files/409_737_6010.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_off000062b9.bin
a458ba8ac20d95b650b61f14a746a781a5dd626b8378b05b6812d2026bcb48fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62B9 5660 bytes
font_01_sfnt_off00007609.bin
b58df12bcc7a355ef4bf0c439974525c902f704f224fa9bf29d4e9eabb80b3f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7609 10696 bytes
font_02_sfnt_off00009a20.bin
30535b71fef35ed465fed30c911a8a99e3a2d946f4f54da78be9ea025806a16a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A20 16340 bytes

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