Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcf20444590eae82…

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 08:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a589530336211ace47021eae0a56a8b SHA-1: ad2d687999b478a535d5ce342ab3d8898ea49718 SHA-256: fcf20444590eae827b8c3f6a63fb33d6ce9e79584db0c36105cff85c5cc3cc81
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=marvelous+designer+tutorial+pdf'. Another heuristic flags the document as a link farm, suggesting a deceptive SEO tactic. The document body, though partially corrupted, contains the URL that is likely used as a lure. No scripts were extracted, limiting the analysis of direct payload execution.

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=marvelous+designer+tutorial+pdf
    • http://files.triciaatpuremagicvacations.ca/uploads/1/3/1/3/131380308/4354385.pdf
    • http://files.inspiringwonder.com/uploads/1/3/0/9/130969673/bulur-puwamufepuju-losodajeranux.pdf
    • http://files.reneguerinart.com/uploads/1/3/1/3/131380847/4099474.pdf
    • http://xamameko.seventhdaywellness.com/uploads/1/3/1/3/131383483/05170ec69e1db89.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/kosoligaraneg.pdf
    • https://cdn.shopify.com/s/files/1/0434/8451/2406/files/81270329803.pdf
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/95433616386.pdf
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/are_you_a_team_player_give_examples.pdf
    • https://cdn.shopify.com/s/files/1/0429/5321/2057/files/99085494665.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/97162487346.pdf
    • https://cdn.shopify.com/s/files/1/0428/2790/7239/files/51946802880.pdf
    • https://cdn.shopify.com/s/files/1/0431/2776/7206/files/dujefegepaxapolozujim.pdf
    • https://cdn.shopify.com/s/files/1/0437/7749/1105/files/japanese_drama_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4626/4213/files/21605402224.pdf
    • https://cdn.shopify.com/s/files/1/0437/4115/1386/files/23569378926.pdf
    • https://cdn.shopify.com/s/files/1/0432/4845/1739/files/murexijofamakuju.pdf
    • https://cdn.shopify.com/s/files/1/0431/4890/2554/files/kewaguzusupebusapumofo.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_off000064f1.bin
2b81db0907f842070031bccb5b15f7b1e065bf89e3b4355fff0b9eb074a99a8a
pdf-font-stream PDF embedded font (sfnt) at offset 0x64F1 5272 bytes
font_01_sfnt_off00007702.bin
2131c9ef71f9bbe8203f5f7247a8eedbeeb740a9f7fc5d37be600d3201cae860
pdf-font-stream PDF embedded font (sfnt) at offset 0x7702 9964 bytes