Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04b779f6b4b060a…

MALICIOUS

PDF

41.2 KB Created: 2020-08-23 01:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aed512346873afc263b8f16c4bac6e5d SHA-1: aebe61e9f9c70d9d78d83668fd0ae27e4d70c4bc SHA-256: e04b779f6b4b060ae5b018b9069eba24f172c42b3deb3e2e1c3bb5ee054a529e
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=m+c+h+test+full+form'. While no scripts were extracted, the structure and numerous links suggest a delivery mechanism for malicious content, likely a phishing lure or a drive-by download attempt.

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.cc/pify?keyword=m+c+h+test+full+form
    • http://files.geraldineschubert.com/uploads/1/3/0/7/130738917/57151ef4e98e.pdf
    • https://cdn.shopify.com/s/files/1/0434/6000/1957/files/75097601908.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/bncc_do_ensino_mdio_em.pdf
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/19363922927.pdf
    • https://cdn.shopify.com/s/files/1/0430/6852/2657/files/food_and_beverage_cost_control.pdf
    • https://cdn.shopify.com/s/files/1/0432/9386/8187/files/pineapple_express_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/banking_services_chronicle_magazine_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/3937/2965/files/36270114013.pdf
    • https://cdn.shopify.com/s/files/1/0434/6275/4461/files/essentials_of_biostatistics_in_public_health.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/20740652892.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.pdf
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/58246905860.pdf
    • https://cdn.shopify.com/s/files/1/0432/4818/9603/files/mezijerenusigubawajatit.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_off000064e0.bin
9a1ca4685a0a27f604c73550285cce2114dda334528671abf46430cd181ae38d
pdf-font-stream PDF embedded font (sfnt) at offset 0x64E0 4916 bytes
font_01_sfnt_off00007577.bin
7a93db70cc555e56e2ee99f6134657789cb72982db2b5e8efaee37693940cee4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7577 10104 bytes