Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfef753b29d6235c…

MALICIOUS

PDF

45.0 KB Created: 2020-08-24 21:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 302bd94d71cc9fe1e8b00bd9fbd5e508 SHA-1: c7b5e265ff0e3c4dcbe5a56c75cbb2a36d11e36c SHA-256: dfef753b29d6235caa6adf99ac67d2391d546399c54ae3e6c65c767dcf35c0c5
130 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector infrastructure. The document body text and heuristic firings indicate a lure related to financial statements, likely intended to deceive users into clicking the malicious links. The primary malicious link identified is https://ttraff.cc/pify?keyword=financial+statement+template+word+free, which is flagged as a known malicious redirector.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=financial+statement+template+word+free
    • http://files.virtualvideogamestore.com/uploads/1/3/2/3/132302924/lodafubibinunuf.pdf
    • http://files.rebeltoruler.com/uploads/1/3/0/9/130969200/xufonoxisasesukopur.pdf
    • http://files.reliablevendingcleveland.com/uploads/1/3/0/8/130813888/bupavivexusonofum.pdf
    • http://lusos.nizhonipropertiesllc.com/uploads/1/3/2/6/132696398/podewowemibup.pdf
    • http://tomalak.penandnapkin.org/uploads/1/3/1/6/131636947/zalakuvigomidunuwuge.pdf
    • https://cdn.shopify.com/s/files/1/0437/9167/9648/files/fondant_icing_transfer_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/funny_cards_against_humanity_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/naxotigok.pdf
    • https://cdn.shopify.com/s/files/1/0439/8222/5566/files/17704152695.pdf
    • https://cdn.shopify.com/s/files/1/0430/4276/7001/files/assistant_google_apk_mirror.pdf
    • https://cdn.shopify.com/s/files/1/0433/7840/9622/files/allahabad_kondapuram_movie_songs_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2332/files/96978915997.pdf
    • https://cdn.shopify.com/s/files/1/0430/4112/8601/files/napewebaki.pdf
    • https://cdn.shopify.com/s/files/1/0428/6326/3910/files/pre_algebra_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0448/0398/1463/files/bakery_technology_books_free_download.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_off000073cb.bin
5fbab1112933b0c32cc1a2482fb472a3293ee5e4a7c4dc2f4dc278cb4aca70c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x73CB 5348 bytes
font_01_sfnt_off000085ea.bin
dfbd72d0568a2eff861b122aa6057193ec62ea75d4360d49335792072ac648e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x85EA 9540 bytes