Malicious PDF — malware analysis report

Static analysis result for SHA-256 555634bd4b5e67d1…

MALICIOUS

PDF

43.5 KB Created: 2020-08-07 05:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8db720e4f84498c5c644f0c00c7d2c84 SHA-1: 795dde731d7216c85c861ea51723dcde8b2db35a SHA-256: 555634bd4b5e67d1c0b7f4cbff7d884ded83508b68f5e769c3ed5769fcfd1d01
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for 'Panchatantra stories pdf download'. This link points to ttraff.ru, which is known malicious infrastructure. The document also contains a large number of embedded links, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of the malicious link. The presence of a visual download button further supports a social engineering lure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=panchatantra+stories+pdf+download
    • http://givilizo.iyengaryoga-concord.com/uploads/1/3/1/6/131606027/xobosisavi.pdf
    • http://files.alexis5dollarbling.com/uploads/1/3/0/9/130969966/4232a38b.pdf
    • http://files.neloukeramati.com/uploads/1/3/0/8/130814101/lopisavefegemebivu.pdf
    • http://files.alltheragemusic.com/uploads/1/3/2/6/132695881/ratezalidanewopi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5721/6678/files/72938662642.pdf
    • https://cdn.shopify.com/s/files/1/0433/9171/3443/files/mods_forestier_farming_simulator_2013.pdf
    • https://cdn.shopify.com/s/files/1/0430/7478/1338/files/47628289743.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/dijuzigusuborutotomurewu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3979/files/20031869855.pdf
    • https://cdn.shopify.com/s/files/1/0436/9701/2890/files/rowazebuzogofuwixuxoniwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2799/files/48600843828.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/336879325.pdf
    • https://cdn.shopify.com/s/files/1/0435/8527/4024/files/97842080267.pdf
    • https://cdn.shopify.com/s/files/1/0433/1775/6062/files/murogegujugiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1927/files/tewexifozarafodufel.pdf
    • https://cdn.shopify.com/s/files/1/0436/1512/5662/files/affinit_lectronique.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_off00006b7c.bin
2ebce386dc374392437aee542a49ae85897015f88883d4bc01bffad8a358cef4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7C 5336 bytes
font_01_sfnt_off00007dae.bin
943a13d95543d71c52205089c3de9a72f4b3cb4cd0c97b6a189d857e96dab316
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAE 10884 bytes