Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6e0e5c803bc6d04…

MALICIOUS

PDF

34.4 KB Created: 2020-07-09 23:15:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6365e6322b8ad5d25816640c4b7052f3 SHA-1: c9df136632d229308b6cc8a737432816e00a7641 SHA-256: f6e0e5c803bc6d04a21ed24ea6c10842dbad9635d213de2e3628c98945b7db33
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, while containing product information, also embeds the same malicious URLs, suggesting a lure to drive traffic to potentially harmful sites. 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.com/wb?keyword=frigidaire%20-%201.6%20cu.%20ft.%20over-the-range%20microwave%20-%20stainless-steel%20manual
    • http://files.asahionline.com/uploads/1/3/1/3/131398423/xagawiripameguj_lavemumokezam_zakurafe_fuzavo.pdf
    • http://files.randymarinez.com/uploads/1/3/1/1/131163561/rotoli_ponumarubemod_kitaluloturam_wejam.pdf
    • http://files.sgionet.com/uploads/1/3/0/8/130874413/zujojunejiguwimurob.pdf
    • http://files.uonewman.org/uploads/1/3/2/6/132681356/bosilarodikupiwelade.pdf
    • http://files.shopgingersgems.com/uploads/1/3/0/7/130739155/tuzafeliteketiw.pdf
    • http://files.kimberlyjherb.com/uploads/1/3/1/4/131407734/6aaa27c09255.pdf
    • http://files.fairlingtonfins.org/uploads/1/3/1/6/131637658/nixiwowuvigi_nekukutilexuf_pujuxef_zaxirefugazim.pdf
    • http://files.madebyloulou.net/uploads/1/3/1/8/131871891/59bfb6ba928ffb6.pdf
    • http://files.frankhagancontracting.com/uploads/1/3/2/6/132681404/zatamutofineve.pdf
    • http://files.rocksolidmarriages.com/uploads/1/3/1/4/131437753/0e9042fc3693f7.pdf
    • http://files.cozykidsembroidery.com/uploads/1/3/1/4/131409170/ninebafakafekip.pdf
    • https://gilogekef.files.wordpress.com/2020/06/mawukomiwafowiroro.pdf
    • https://pisuruvofeja.files.wordpress.com/2020/07/sepawopap.pdf
    • https://wajofub.files.wordpress.com/2020/06/19209061222.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23083433767.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pizegavegip.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_off00004831.bin
329d9ac51ad29c33f071a42e39805f5d4c714a0494baf19037dd93588e08aeb7
pdf-font-stream PDF embedded font (sfnt) at offset 0x4831 5692 bytes
font_01_sfnt_off00005b80.bin
98324e52970a7878fab02896c6dda99acaf0040a51372dce0c75c22d86c0cb3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B80 9656 bytes