Malicious PDF — malware analysis report

Static analysis result for SHA-256 00a557bbc7f3ae42…

MALICIOUS

PDF

35.4 KB Created: 2020-08-02 22:39:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5175f3ed281021e7556ee724ccda49ad SHA-1: 641fd96314133f005d6501bf919c659760131415 SHA-256: 00a557bbc7f3ae42b48f9d96c0255d58ba11bb6d283f62d872a0ef04c26bf862
154 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to external resources, indicating a link farm or redirection strategy. The primary malicious URL, 'https://ttraff.com/pify?keyword=megaman+zero+rom', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify links, suggesting a lure to download potentially malicious content.

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=megaman+zero+rom
    • http://files.cablebaylimited.com/uploads/1/3/0/8/130814115/jomaginosimatejim.pdf
    • http://files.thewhisperingwild.co.uk/uploads/1/3/0/7/130740262/lopetexape.pdf
    • http://files.themovementdancestudio.net/uploads/1/3/1/3/131380558/7249882.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/2282/8198/files/10429943472.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdf
    • https://cdn.shopify.com/s/files/1/0429/0812/3303/files/vadop.pdf
    • https://cdn.shopify.com/s/files/1/0438/6871/7216/files/93_civic_hatchback.pdf
    • https://cdn.shopify.com/s/files/1/0429/0235/6127/files/19166019966.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/lilofo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/99446678225.pdf
    • https://cdn.shopify.com/s/files/1/0428/8013/9423/files/ruwazepixunasodumifoxoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/7090/6780/files/wadovogod.pdf
    • https://cdn.shopify.com/s/files/1/0428/8957/6601/files/14089534133.pdf
    • https://cdn.shopify.com/s/files/1/0436/3350/8512/files/2959834771.pdf
    • https://cdn.shopify.com/s/files/1/0429/3797/4950/files/23842849195.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e39.bin
cd1f43a7b4fcdc8fd7d309a2c4751d1bbfde76d6a767b03c282de04e1384b926
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E39 4848 bytes
font_01_sfnt_off00005eb6.bin
70fd68fc762ce01bcc57ba48be29c046ab94c15734cfd9708a835f6983d66458
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB6 10092 bytes