Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e5f022e6f26c9c…

MALICIOUS

PDF

52.2 KB Created: 2020-08-23 15:42:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bc3ccb55a7d536d3a35eace45498e75 SHA-1: 2866feba7e4138ea747e9b1920521d5e3dca0954 SHA-256: d1e5f022e6f26c9c1b43d086be4024a8a5d174fc3fd05b888aed748ad545b20f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or phishing. 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=god+annamalaiyar+songs++masstamilan
    • http://files.downtownklamathfalls.org/uploads/1/3/2/6/132682802/moxizanaxepuve-gijasasepurit.pdf
    • http://sozoluf.tualatindar.org/uploads/1/3/1/4/131452883/serapupog.pdf
    • http://newudaz.luminaris.link/uploads/1/3/1/4/131406149/zajez-venitiju.pdf
    • http://tumagitam.drakemabry.com/uploads/1/3/0/8/130813528/nisixu_piwafib_kobax.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/67843425741.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/minecraft_towny_server.pdf
    • https://cdn.shopify.com/s/files/1/0436/2246/5699/files/90810199306.pdf
    • https://cdn.shopify.com/s/files/1/0429/2558/8639/files/diabetes_australia_management_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0432/0323/1903/files/vosusigotisuwedamis.pdf
    • https://cdn.shopify.com/s/files/1/0433/6304/1430/files/67576953131.pdf
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/88754615422.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/brew_install_virtualbox.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/aadat_tu_meri_song_remix.pdf
    • https://cdn.shopify.com/s/files/1/0432/0562/3972/files/48247191315.pdf
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/90303274115.pdf
    • https://cdn.shopify.com/s/files/1/0434/8739/6004/files/best_ipad_pro_annotation_app.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/
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/887

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008330.bin
6f2e8ceb0c2a7f34dd437e69bd2f849d10712e74ba9a402d9b957cbc637c2f5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8330 5280 bytes
font_01_sfnt_off0000951b.bin
0926590cea72a12a15f035272433144cde3a051e9b357cb6e2ca53b660f5032f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x951B 14532 bytes

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