Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec90abbf2f48bf5a…

MALICIOUS

PDF

39.5 KB Created: 2020-08-23 12:27:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 720395f94590b439105e79298cb1ce3c SHA-1: 3a6dd0cd89eb25bc83c340b21972d1e2e4cbed3f SHA-256: ec90abbf2f48bf5a75bb609ffe1b3521ba048ee17127a06b306d06147e21db70
160 Risk Score

Malware Insights

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

The PDF contains a lure for a "Netflix free laptop" and embeds multiple external links. One of these links, https://ttraff.cc/pify?keyword=netflix+free++laptop, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links pointing to PDF files hosted on Shopify. This indicates a phishing attempt designed to redirect users to malicious sites.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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=netflix+free++laptop
    • http://files.jostenmyburgh.com/uploads/1/3/1/3/131380889/f8b2dd22b3f3b.pdf
    • http://files.ohlimousine.com/uploads/1/3/1/4/131453302/zazos-letezipikolorif.pdf
    • http://files.stoneharborpawprints.com/uploads/1/3/2/3/132303126/pekuwavom_nekagepuregenu.pdf
    • http://guludufuj.atlasmountaineering.co.uk/uploads/1/3/2/6/132681670/68ef586fa8ba8e1.pdf
    • https://cdn.shopify.com/s/files/1/0440/2708/4965/files/53344458465.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/candle_in_the_wind_piano_notes.pdf
    • https://cdn.shopify.com/s/files/1/0429/8414/5049/files/vubikuxubiziwunek.pdf
    • https://cdn.shopify.com/s/files/1/0434/5092/5223/files/boyce_codd_normal_form_example.pdf
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/20825800954.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/38139715031.pdf
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/72685295271.pdf
    • https://cdn.shopify.com/s/files/1/0440/2423/4149/files/geographical_information_system_jobs_in_pakistan.pdf
    • https://cdn.shopify.com/s/files/1/0437/1070/9913/files/best_beat_rap.pdf
    • https://cdn.shopify.com/s/files/1/0429/9443/4202/files/ludifabeg.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_off00005ebe.bin
18e5569f5d497e4bc095184d27eaba1772df1f2f7effbceecc3dc1ef8cde8872		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBE 4756 bytes
font_01_sfnt_off00006f02.bin
030d5247a5385fb755b8faad22956b6c199ed7dff4c418e0a46124a66b09824c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F02 10128 bytes

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