Malicious PDF — malware analysis report

Static analysis result for SHA-256 e62fc457a2ca6b69…

MALICIOUS

PDF

39.6 KB Created: 2020-08-15 03:37:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ec0a6acc492977c73c7beab1a7934a5 SHA-1: 4867cbf218d2d102fa976d6e2bda5f9bc9efc21a SHA-256: e62fc457a2ca6b6992882b5e7025690c5e8bf9e1115ea701b3bcc9334ea6545e
128 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a download button, which redirects to a known malicious infrastructure. The document body and embedded links suggest a lure related to 'Happn app for jio', aiming to trick users into clicking the malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the malicious nature of the destination.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=happn+app++for+jio
    • http://peburula.explorercharters.com/uploads/1/3/1/0/131070161/jubewebokikax-kebofideb.pdf
    • http://files.beattieartworks.com/uploads/1/3/1/4/131453198/678242.pdf
    • http://files.christykiespertpianostudio.com/uploads/1/3/0/9/130969110/wojugevifanenin_guduxamigevolaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7122/5494/files/26911382414.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/milebifeduzunonika.pdf
    • https://cdn.shopify.com/s/files/1/0433/5314/5495/files/youtube_to_discord_webhook.pdf
    • https://cdn.shopify.com/s/files/1/0434/7199/5033/files/grief_and_loss_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0433/9168/0673/files/horntail_guide_maplelegends.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/20928292692.pdf
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/three_dimensional_shapes_worksheets_for_2nd_grade.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/24164165880.pdf
    • https://cdn.shopify.com/s/files/1/0436/6349/1222/files/noperebipifegaluzoba.pdf
    • https://cdn.shopify.com/s/files/1/0435/9304/0029/files/28434799152.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_off00005f5f.bin
e0f4e005c281dbaa87568dfc86adbecbab585418264a1492e036c34322e669da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5F 4720 bytes
font_01_sfnt_off00006f7d.bin
d6e83b7df1b28cc83c5dae58efedb2d79d11eaf45bf6548412a8851d89f1d44d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7D 10268 bytes

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