Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea8ec889efc07f4…

MALICIOUS

PDF

44.8 KB Created: 2020-08-20 07:27:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d1abd5f76c0dd48beb61b8336a7783c SHA-1: 17a5154246669f6a29f028b4d2721d0cc345017e SHA-256: 3ea8ec889efc07f436bcad8cf84395a982c7a364cab9165bb3ed9e4e664b79c7
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=font+iciel+bambola'. Additionally, it exhibits a PDF link farm with numerous links hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to interact with the clipboard in a way that could lead to command execution, further supporting a malicious intent.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=font+iciel+bambola
    • http://files.johnwilliamsartgallery.com/uploads/1/3/1/4/131453252/fivilijudu-maxuxezukiki.pdf
    • http://files.bayjedesigns.com/uploads/1/3/1/3/131379833/zexirokimipu.pdf
    • http://tubok.rosemarygallagher.com/uploads/1/3/0/8/130814328/lokabupaw.pdf
    • http://tubok.rosemarygallagher.com/uploads/1/3/
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/tezugasumajulufuvusanaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/3037/1739/files/ap_calculus_textbook_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2969/9482/files/sample_annotated_bibliography_apa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/vovogiwosuvamazapejub.pdf
    • https://cdn.shopify.com/s/files/1/0440/7967/7590/files/counter_strike_2._6_free_full_version.pdf
    • https://cdn.shopify.com/s/files/1/0434/3876/8294/files/tuwax.pdf
    • https://cdn.shopify.com/s/files/1/0459/9529/4887/files/85420621105.pdf
    • https://cdn.shopify.com/s/files/1/0437/6127/0935/files/couper_un_adobe.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/print_linked_list_in_reverse.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/49897608195.pdf
    • https://cdn.shopify.com/s/files/1/0429/1330/0647/files/jotakavij.pdf
    • https://cdn.shopify.com/s/files/1/0433/3037/1738/files/ponetuso.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/puparudixevabefula.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_off00006290.bin
3883ca53e6e342e3e87335514d385d79a55200bfb00219146fa06182fec23c76
pdf-font-stream PDF embedded font (sfnt) at offset 0x6290 4764 bytes
font_01_sfnt_off000072b2.bin
0c7312a332ab97a72ececaea03256833831e671d723d4fa612e4bdd7cc0cb453
pdf-font-stream PDF embedded font (sfnt) at offset 0x72B2 18896 bytes