Malicious PDF — malware analysis report

Static analysis result for SHA-256 399b2f993bc8cba4…

MALICIOUS

PDF

49.7 KB Created: 2020-08-18 14:17:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71ef61bb6a730ba4c5e4ee4736048d76 SHA-1: d4a4b8441c4275b68c54d982a5dabd18510627ef SHA-256: 399b2f993bc8cba442278492440dd51eccafbfaa18dc52e3cef70a1fdd921f8f
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL identified as https://ttraff.ru/pify?keyword=tamil+album+video+songs++hd+720p. This indicates a likely phishing or scam attempt, leveraging SEO techniques to distribute malicious links. No scripts were extracted, limiting the analysis of specific execution behaviors.

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=tamil+album+video+songs++hd+720p
    • http://files.faithforher.com/uploads/1/3/1/6/131606260/xugepazu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/rome_2_patch_18.pdf
    • https://cdn.shopify.com/s/files/1/0429/0881/1427/files/poulan_weed_eater_parts.pdf
    • https://cdn.shopify.com/s/files/1/0433/1700/2405/files/hiv_aids_awareness_information.pdf
    • https://cdn.shopify.com/s/files/1/0433/9659/5868/files/avifauna_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0435/4542/8122/files/vowenitasajixitaxanezuwos.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/68227428906.pdf
    • https://cdn.shopify.com/s/files/1/0429/1615/1455/files/gosolosunixajipejat.pdf
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/56772790606.pdf
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/bolebovegimasoregoger.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64238793182.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/cabalistic_encyclopedia.pdf
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/easy_classical_guitar_songs.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_off000074f4.bin
ed4c12b6e0f165de51977dec89d7553fa3dc001be0b5a8f252a369af633ae21f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74F4 5780 bytes
font_01_sfnt_off0000887c.bin
78a47b98406d4b68e72645e14cd9a4a224cc6f4cb931cd0cdf1331d523614157		 pdf-font-stream PDF embedded font (sfnt) at offset 0x887C 15908 bytes

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