Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f1aaa17ead599e…

MALICIOUS

PDF

47.9 KB Created: 2020-08-24 02:26:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4914ef8d35f02a2979043dd3bd9fa81 SHA-1: 9dcc5b4a210ffa52e5ee41660761196cd5857ae1 SHA-256: 96f1aaa17ead599e640cccde07da0a902f0bb812764460dd927e84bb6981e9d9
152 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on 'cdn.shopify.com', suggesting a link farm or redirection strategy. The primary intent appears to be luring the user to the malicious 'ttraff.com' domain, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.com/pify?keyword=balak+palak+marathi+movie+all+songs
    • http://nizimesa.mathemanomicon.ca/uploads/1/3/1/3/131379615/betefi_nanotu.pdf
    • http://files.cretehm.com/uploads/1/3/1/8/131856547/wisomidunesibosigito.pdf
    • http://files.william-balog-philanthropy.com/uploads/1/3/0/9/130969182/ed1cf29f8.pdf
    • http://files.boozybotanicals.com/uploads/1/3/0/8/130874620/gumasukeroxa-jafowo-ronunima.pdf
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/stansberry_investment_advisory.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/lipinigotadixafuki.pdf
    • https://cdn.shopify.com/s/files/1/0433/0582/8520/files/39884618860.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zimupumunilojoduwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0522/2822/files/nonparametric_statistical_methods.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/bizazirowenowasov.pdf
    • https://cdn.shopify.com/s/files/1/0438/9847/0555/files/savoir_parler_en_franais.pdf
    • https://cdn.shopify.com/s/files/1/0428/7630/5564/files/pawitaboropezo.pdf
    • https://cdn.shopify.com/s/files/1/0437/4976/9367/files/77981979165.pdf
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/rifepuzikelopu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006210.bin
c559b5cfc0cd3fe4ce5a78cdd2bafefa244921ab4cde936eb019855234c9c705
pdf-font-stream PDF embedded font (sfnt) at offset 0x6210 5408 bytes
font_01_sfnt_off00007454.bin
888018e6c99d14a205a2077ed503b31db137b8fadbbfea4a86cbbbf19c75a269
pdf-font-stream PDF embedded font (sfnt) at offset 0x7454 10276 bytes
font_02_sfnt_off0000978f.bin
59ba3107b552ab064c82b2d33b7acabf738da14ac32dc0a416ae83375fa7c6b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x978F 8024 bytes