Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dc34458230718e4…

MALICIOUS

PDF

44.2 KB Created: 2020-08-04 02:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77b349649ae11f8fb2e5192d89cea717 SHA-1: 41aebb9eaaca02a56d5197ab0a3e5beab693568a SHA-256: 4dc34458230718e42b349d242c4295ba89f8e86548c95cb117988b8496605279
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.ru/pify?keyword=the+financial+times+essential+guide+to+budgeting+and+forecasting+pdf'. This indicates a likely attempt to lure users to a malicious site. The document also contains a large number of external PDF links, characteristic of a link farm, further supporting the malicious intent.

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.ru/pify?keyword=the+financial+times+essential+guide+to+budgeting+and+forecasting+pdf
    • http://files.thehocklocker.com/uploads/1/3/2/6/132681951/xerawotop.pdf
    • http://files.afterthefallinc.com/uploads/1/3/0/8/130874213/burifikivaberu.pdf
    • http://files.norcalinjurylawcenter.com/uploads/1/3/1/6/131637043/28436fc96dafa.pdf
    • http://files.argobaseball.com/uploads/1/3/1/0/131070712/jogalu.pdf
    • http://files.yalenotredamelaw.com/uploads/1/3/1/4/131438639/6167786.pdf
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/91342660779.pdf
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/13162675123.pdf
    • https://cdn.shopify.com/s/files/1/0438/2726/5693/files/dafavanutevedeje.pdf
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/jerufa.pdf
    • https://cdn.shopify.com/s/files/1/0437/0939/9192/files/2013_chevy_equinox_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/pebuwipivibisiliri.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/lagrande_oregon_weather.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xedatojif.pdf
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/geputukugevixegoxap.pdf
    • https://cdn.shopify.com/s/files/1/0431/0981/0327/files/ages_and_stages_9_month_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0428/2744/8476/files/vexatuzajegepinudelel.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_off00006d3d.bin
31c8a48de143035950e3e82283ab9c661dd5ef23c054680197c9b134f4ac1ce6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D3D 5660 bytes
font_01_sfnt_off00008049.bin
2602272093737d7e7c150b81b5241ae225e42e4efbfe0e2829e0682d9e1ad3d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8049 10268 bytes

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