Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f43041a98222141…

MALICIOUS

PDF

52.6 KB Created: 2020-08-19 23:58:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f35271dca578161abdf350492ac53c8 SHA-1: 13aa2ca353e5c25ae035d3d27195c540d892748b SHA-256: 1f43041a98222141a003e67b63164c5e16e35843b0833c46f5f4b67608ca2ab1
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'built environment' and includes the malicious URL. This suggests a phishing or scam attempt designed to redirect users to malicious infrastructure.

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.com/pify?keyword=built+environment+pdf
    • http://files.bluhorizontravel.com/uploads/1/3/0/8/130813577/rixaxakesuguv.pdf
    • http://files.photosjct.com/uploads/1/3/0/8/130815080/wudalojilezaf-gesogekenupeba-zomimilabetero-sidineluta.pdf
    • http://zoluzem.northchesterbaptist.com/uploads/1/3/1/1/131164128/zugajuxejad.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/minidukebogixefozapom.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/80009721424.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdf
    • https://cdn.shopify.com/s/files/1/0437/6320/4253/files/8496465045.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fulefevizurosojasi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8044/2271/files/awards_and_honors_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/6477188607.pdf
    • https://cdn.shopify.com/s/files/1/0434/9663/6580/files/fusionner_2_foxit.pdf
    • https://cdn.shopify.com/s/files/1/0433/3787/5614/files/fannie_mae_guidelines_for_cash_out_refinance.pdf
    • https://cdn.shopify.com/s/files/1/0445/6851/0623/files/7288394546.pdf
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/27724808769.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8903/files/ecology_definition_biology.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_off00008c95.bin
1deba1ef11834ffb63e493bae0eef2d32e889847577a24ee20a0c5369fbf30cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C95 4908 bytes
font_01_sfnt_off00009d36.bin
3cbcb1acfa0feec96ee33a0cf4758cb491f34b646a424e656bdb477f3729be65
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D36 12388 bytes