Malicious PDF — malware analysis report

Static analysis result for SHA-256 d38767350bcbd41b…

MALICIOUS

PDF

60.6 KB Created: 2020-08-19 15:48:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4abe47aeaaf746899c70629a3706413c SHA-1: 4bda663d5372b1361f22bdd517ec142c7ac28fd1 SHA-256: d38767350bcbd41b181c58f02aa22eee2d8aa84bea036b69f29011af6c1cc02f
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body text and heuristics suggest a lure, possibly related to remote support tools or a scam, directing users to click links. The presence of a link farm further indicates an attempt to distribute malicious content or phishing pages.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=contact+at+cleverpdf.+com
    • http://files.tedickason.com/uploads/1/3/0/8/130874316/87aef.pdf
    • http://files.umdtreblemakers.com/uploads/1/3/2/6/132682124/d0235fdbe77d2c.pdf
    • http://nilasowot.bybforbes.com/uploads/1/3/1/3/131379833/kuwasiduvotel.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/video_show_application.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/ritaguvatafopegij.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/1976_cutlass_supreme.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ligumugazawebamupewav.pdf
    • https://cdn.shopify.com/s/files/1/0464/6046/9400/files/seeding_square_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/3536/1442/files/free_residential_lease_agreement_template_ohio.pdf
    • https://cdn.shopify.com/s/files/1/0434/2824/9767/files/graphical_user_interface_notes_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/816537945.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2103/files/sukotus.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/395667921.pdf
    • https://cdn.shopify.com/s/files/1/0448/1312/3744/files/personal_history_statement.pdf
    • https://cdn.shopify.com/s/files/1/0441/1306/8184/files/buku_akhirat_tidak_kekal.pdf
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/pabivilevopesototedopaf.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_off00007795.bin
be80453781e77ee336002ce8152a07967941d12fdbddc4aedd4ca3ad43251b64
pdf-font-stream PDF embedded font (sfnt) at offset 0x7795 13756 bytes
font_01_sfnt_off0000a442.bin
12cdfc5c909c9bddca3a70b00ef814dda4f1245d3c92303972abacf31c60aca0
pdf-font-stream PDF embedded font (sfnt) at offset 0xA442 5120 bytes
font_02_sfnt_off0000b5a2.bin
00adbe7c685a8caa9bdbf67f89ab04f00fbde860cfd4dbdaa1b8f00318db6582
pdf-font-stream PDF embedded font (sfnt) at offset 0xB5A2 15052 bytes