Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ec441c79bef251…

MALICIOUS

PDF

48.8 KB Created: 2020-08-22 04:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0eb38155d67198f497d344a46745401 SHA-1: 1bc84d465d9950625e3c7aec028ad72a8bf31371 SHA-256: e2ec441c79bef251ddbb676ea8709553a67e09ca3c91c8c68b0f0b0e1c7f6823
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it features a PDF link farm with numerous external links, many hosted on cdn.shopify.com, suggesting a tactic to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering through a deceptive link within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=fitness+membership+agreement+template
    • http://biremurem.jenniferfillo.com/uploads/1/3/2/8/132814989/jelakokaxud.pdf
    • http://soxege.glow-you.com/uploads/1/3/1/4/131483337/jobek.pdf
    • http://gijib.azdirectmobility.com/uploads/1/3/1/8/131856158/dc2e4.pdf
    • http://kuwukewuz.forestchild.co.uk/uploads/1/3/1/4/131454065/7124f8c92b.pdf
    • http://files.positively-jewish.org/uploads/1/3/1/6/131637640/99cbbed29.pdf
    • https://cdn.shopify.com/s/files/1/0437/4121/6917/files/transform_cartesian_to_cylindrical.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8194/files/nihongo_sou_matome_n3_choukai.pdf
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/tegov.pdf
    • https://cdn.shopify.com/s/files/1/0434/9706/2564/files/56319131089.pdf
    • https://cdn.shopify.com/s/files/1/0435/6869/3407/files/prehepatic_jaundice.pdf
    • https://cdn.shopify.com/s/files/1/0438/2490/6400/files/31154559945.pdf
    • https://cdn.shopify.com/s/files/1/0432/7420/7387/files/78805454300.pdf
    • https://cdn.shopify.com/s/files/1/0454/3217/6808/files/c_programming_aptitude_questions_and_answers_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6939/files/fakoromobasi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7987/6252/files/bhajan_odia_new_song.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_off0000806e.bin
6b4789f3b280c2c0e48b5276f5475a9488f82c91ef167650e6b899ac8018c483		 pdf-font-stream PDF embedded font (sfnt) at offset 0x806E 5328 bytes
font_01_sfnt_off00009256.bin
6ef69ebf5e8d1912ef97e4ddfea73a47b7f05d90a4a69297e4f95f6703569851		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9256 10536 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.