Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7327a05b9bef779…

MALICIOUS

PDF

43.2 KB Created: 2020-08-19 22:20:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c5ceb6b26d5dd84c7e940457a238385 SHA-1: b1b9dc81a588812d62189fe20a638f04cbf5fc8c SHA-256: e7327a05b9bef7793f8c2a9c692adb9507fab0e0ce638f160916006ead77bfcd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it features a link farm heuristic with numerous external PDF links, including one to 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the same redirector URL and a Shopify URL, suggesting these are the intended destinations for user interaction. The primary attack pattern involves tricking the user into visiting the malicious redirector.

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=beautiful+photos+of+nature
    • http://files.johnsonwriter.com/uploads/1/3/1/3/131381553/jileluxagoregusosor.pdf
    • http://wubiv.alexandriatalley.com/uploads/1/3/0/7/130775565/tejexexetanonot_lomudi_lobokojoxo_vatexiwes.pdf
    • http://dukewajo.shannonsstudio.com/uploads/1/3/2/6/132683292/9128695.pdf
    • http://segituw.araigneearcaneservices.org/uploads/1/3/1/4/131409167/ziditezudada.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/banking_awareness_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/golukenazupolamixuwune.pdf
    • https://cdn.shopify.com/s/files/1/0435/5666/7541/files/91276357978.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1285/files/blessed_be_your_name_chords_key_of_g.pdf
    • https://cdn.shopify.com/s/files/1/0432/5549/6866/files/administracion_de_recursos_humanos_pearson.pdf
    • https://cdn.shopify.com/s/files/1/0429/4092/4063/files/1004165265.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8114/files/tracheostomy_care_and_suctioning.pdf
    • https://cdn.shopify.com/s/files/1/0433/1628/1512/files/weekly_calendar_template_excel_2019.pdf
    • https://cdn.shopify.com/s/files/1/0429/2352/4255/files/20734930087.pdf
    • https://cdn.shopify.com/s/files/1/0432/0559/1200/files/sowosisofarozewitoripese.pdf
    • https://cdn.shopify.com/s/files/1/0432/1578/2048/files/netujaxo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6686/8383/files/56209824740.pdf
    • https://cdn.shopify.com/s/files/1/0435/8841/9741/files/gazamapuvuvawikazazixudo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4742/9031/files/tawukekapen.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_off00006c5d.bin
484662c8b0f7d226a343ead91047ff27b93bf7a9a0cbf470f02f5bd98dd332e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C5D 5036 bytes
font_01_sfnt_off00007d73.bin
69ec4528adaaaa1fb7ee4e0a2613fc0f5ed1cc9f87954e7e353bf79cd2d8983f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D73 10024 bytes