Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff688a046bdacc00…

MALICIOUS

PDF

41.0 KB Created: 2020-08-19 02:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78358cffed1e8692d6ad09bf2226950d SHA-1: fc3f8568034bfa7f4079aeb7019c35905983455f SHA-256: ff688a046bdacc0086ec7f0eaf07dc76b9bf190000f1d443118dcff83fd27cc0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. The link leads to `https://ttraff.cc/pify?keyword=blessing+of+bebe+status`, which is likely intended to redirect the user to a malicious site. The document also contains a large number of links to Shopify domains, likely part of a link farm to improve search engine ranking for malicious content. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=blessing+of+bebe+status
    • http://files.carriebburnscyrenesmrgc.com/uploads/1/3/0/9/130969645/a58d67ac42ea7.pdf
    • http://files.westybands.com/uploads/1/3/0/9/130969532/lanejo-gazose.pdf
    • http://files.myremio.com/uploads/1/3/1/4/131452958/88fb154.pdf
    • http://files.thesilkfamilyproject.com/uploads/1/3/1/4/131437740/livig.pdf
    • http://files.ibyouth.org.uk/uploads/1/3/1/4/131453054/7166466.pdf
    • https://cdn.shopify.com/s/files/1/0437/7201/8845/files/18689670500.pdf
    • https://cdn.shopify.com/s/files/1/0432/3183/8368/files/korean_language_in_nepali.pdf
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/95890970764.pdf
    • https://cdn.shopify.com/s/files/1/0434/7225/7181/files/solutions_to_climate_change.pdf
    • https://cdn.shopify.com/s/files/1/0431/3828/5725/files/58413867351.pdf
    • https://cdn.shopify.com/s/files/1/0430/5177/8202/files/rolarozovu.pdf
    • https://cdn.shopify.com/s/files/1/0428/6811/3574/files/ecotourism_definition.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/majatiwivawuputa.pdf
    • https://cdn.shopify.com/s/files/1/0434/9768/5157/files/fosozorubiledejowula.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/nomiwebivolidamakiserav.pdf
    • https://cdn.shopify.com/s/files/1/0433/8106/3838/files/49124037296.pdf
    • https://cdn.shopify.com/s/files/1/0431/1705/2066/files/jikufuwifikalek.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_off000056a6.bin
1e0eef3a15785aacf75e5f14faa58bedd96eab1be17936cf76a431a102d7d256		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56A6 5028 bytes
font_01_sfnt_off000067db.bin
497d40ed98ee106c19d44e89ed159687498637ff40468b00a46bcea629772eda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67DB 15304 bytes

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