Malicious PDF — malware analysis report

Static analysis result for SHA-256 da0a572e3a450011…

MALICIOUS

PDF

56.7 KB Created: 2020-08-15 03:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b42a022e1b2dac20330e32f82bff9fd SHA-1: 5011db0965d2a22a7ee7ec169c5f21bc585b3099 SHA-256: da0a572e3a4500110b5bb5b9d8c505a5956b3f025dd4649879183a5b29a02388
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=bodybuilding+anatomy+pdf+nick+evans'. This indicates a phishing or social engineering attempt to direct the user to malicious content. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The embedded URLs and the document body content reinforce the lure of accessing a PDF document.

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=bodybuilding+anatomy+pdf+nick+evans
    • http://vabugitu.appledentaleducation.com/uploads/1/3/0/7/130776078/nukirawojewes-wokil.pdf
    • http://vapis.mentalhealthweek.club/uploads/1/3/1/3/131383544/faxuxebozopol.pdf
    • http://files.thesolidrockshop.com/uploads/1/3/0/8/130813797/zaxisufibuxuxigusi.pdf
    • http://files.cfstephenville.com/uploads/1/3/2/8/132814241/gakitabifuvamit.pdf
    • http://files.shopmerricks.com/uploads/1/3/1/3/131381352/c3675295480dbbd.pdf
    • https://cdn.shopify.com/s/files/1/0448/4051/7792/files/positive_impact_of_globalisation.pdf
    • https://cdn.shopify.com/s/files/1/0430/7206/1591/files/remifagazaxozimegibavu.pdf
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/91321149319.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/48201846814.pdf
    • https://cdn.shopify.com/s/files/1/0437/0297/6666/files/adverb_clause_of_time_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/96636662410.pdf
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/14706181871.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kiwovanigefuminif.pdf
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/mozomosa.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/75267715972.pdf
    • https://cdn.shopify.com/s/files/1/0427/5575/2103/files/52503437508.pdf
    • https://cdn.shopify.com/s/files/1/0436/9448/9755/files/82744431960.pdf
    • https://cdn.shopify.com/s/files/1/0432/5962/5627/files/75020656021.pdf
    • https://cdn.shopify.com/s/files/1/0440/1519/0181/files/20_amino_acids_structure.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
stream_005_off0000abea.bin
703385741469ea173b41a69bb1bd3adb6404aea556de52757afdd11cfb2ee145
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xABEA 23720 bytes
font_00_sfnt_off000075a1.bin
37fa22ca31954b6573eae7eae007cf00ac718ac8e14a0d4f567832ae1496f7cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x75A1 5792 bytes
font_01_sfnt_off00008960.bin
f4330fe0e0f5dd639e9e394098eb05cc0958547eaef7076b13a6f07703cbd43b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8960 10004 bytes