Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f647f9c8649be11…

MALICIOUS

PDF

54.7 KB Created: 2020-08-21 15:11:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0a734a9ebd11e09e63d2e789cf64b68 SHA-1: a90889567478d3a100dea728080723eb4ea46d71 SHA-256: 1f647f9c8649be11eada51ec6ba28a1d824017953845a8d4239deff4700846f7
150 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body text, though heavily obfuscated, contains the phrase 'Another term for personal information' followed by the malicious URL, suggesting a phishing or scam lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which point to benign Shopify domains, likely as a camouflage or to inflate SEO metrics for the malicious redirector.

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=another+term+for+personal+information
    • http://files.abulaishbarbara.com/uploads/1/3/1/3/131379361/gevotaxiwubi-tusozegaxida.pdf
    • http://jejusag.andreakober.com/uploads/1/3/1/8/131871486/nogajuwotaged.pdf
    • http://fuwot.mawuviosoutreachprogramme.org/uploads/1/3/1/4/131438667/doronurifap-vafijimuwiko-wexaka.pdf
    • https://cdn.shopify.com/s/files/1/0437/5625/7441/files/34678011417.pdf
    • https://cdn.shopify.com/s/files/1/0429/4112/0679/files/the_time_traveler_s_wife_cast.pdf
    • https://cdn.shopify.com/s/files/1/0428/2990/6079/files/57679140650.pdf
    • https://cdn.shopify.com/s/files/1/0430/6308/3162/files/vladimir_bogomolov_ivan.pdf
    • https://cdn.shopify.com/s/files/1/0434/4587/8950/files/fituxurisefetejuxix.pdf
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/financial_accounting_weil_14th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/2480/8096/files/wunepaduvepepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4449/4750/files/gafiwovetopezosob.pdf
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/damobizigidumonurezur.pdf
    • https://cdn.shopify.com/s/files/1/0434/8015/4269/files/metotipivulobulajonegar.pdf
    • https://cdn.shopify.com/s/files/1/0429/6540/1753/files/vikovelesem.pdf
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/bein_sport_izleme_apk_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/bahubali_3_film_movie.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/reading_answer_sheet_ielts.pdf
    • https://cdn.shopify.com/s/files/1/0438/0996/4192/files/17726353035.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_off0000981f.bin
36733da1a486a92999e0ddda91142b9fa24f53a30176df7b62854a5fef9f37cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x981F 5132 bytes
font_01_sfnt_off0000a962.bin
50f1ba14daed864af6f8128df79b06812e22691cdc6cfb4824665bc03d65a177
pdf-font-stream PDF embedded font (sfnt) at offset 0xA962 11056 bytes