Malicious PDF — malware analysis report

Static analysis result for SHA-256 40fbaa99370f5abb…

MALICIOUS

PDF

41.9 KB Created: 2020-08-22 08:28:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fafbd4c5dc8de5d09ff0dcc0f4356bf SHA-1: 4e1a2ef601d80ea9fc7e4e042a0c88433ae52e99 SHA-256: 40fbaa99370f5abb82fd92b38bad0806fe97264fcc8e67c21d5a74d63a7d5c5f
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=business+card+scanner+android+app'. This URL is presented within the document body, suggesting a social engineering lure to download a malicious application. The file also contains a large number of embedded links, many of which point to Shopify domains, likely part of a link farm to improve search engine ranking for malicious content.

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.cc/pify?keyword=business+card+scanner+android+app
    • http://files.missrichardson.org/uploads/1/3/0/7/130775528/xutegerifefon.pdf
    • http://pavelozam.oakieacresfarm.com/uploads/1/3/0/8/130814328/de25f2f.pdf
    • http://files.mpowertheworld.net/uploads/1/3/2/7/132740415/kadisetiwebuget_rofajanagojata.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/30952764234.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/66991602570.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/ropowemenuvosizopodal.pdf
    • https://cdn.shopify.com/s/files/1/0436/9770/1032/files/40760990518.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/kobojanirapi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8437/3406/files/lojek.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/30604522213.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/pewagitarerovite.pdf
    • https://cdn.shopify.com/s/files/1/0431/3396/0341/files/kozas.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/fake_gps_apk.pdf
    • https://cdn.shopify.com/s/files/1/0434/4528/9127/files/mefukotetunufowetir.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/
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/fake_gps_apk

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006765.bin
1c2b71a048ed60aa850bfdc0f5fbaf2152af1f3f2869c61d0a84e5d937100765
pdf-font-stream PDF embedded font (sfnt) at offset 0x6765 5084 bytes
font_01_sfnt_off000078af.bin
c88eccd2621d2ccaf7172a404b17a0bbe07deb886e688d2779254f2813b66d21
pdf-font-stream PDF embedded font (sfnt) at offset 0x78AF 9872 bytes