Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1034788fbfe754…

MALICIOUS

PDF

72.9 KB Created: 2020-08-11 00:24:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26e38c793de692c3ddd0bb8fdd423a1d SHA-1: 388ed1846e99ca7a5e44d0a6e4bea518aceda658 SHA-256: 9b1034788fbfe754b53d9a3effabbf8c323f1393e2817f791261d3814d82db91
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the PDF is designed to lead users to malicious infrastructure, likely for a phishing or scam operation. No scripts were extracted, limiting the analysis of specific execution behaviors.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=alginac+5000+bula+pdf
    • http://xaver.yubakids.org/uploads/1/3/1/8/131872225/1882490.pdf
    • http://wasinapa.rxmedicalmassage.com/uploads/1/3/1/8/131856158/pijumudukaravi-kapow-kogol.pdf
    • http://pexafik.micaylairmiter.com/uploads/1/3/1/8/131857920/nazatiniz_kojapexifas.pdf
    • https://cdn.shopify.com/s/files/1/0433/3184/6296/files/27016686898.pdf
    • https://cdn.shopify.com/s/files/1/0443/6430/0444/files/zulabife.pdf
    • https://cdn.shopify.com/s/files/1/0433/8860/0478/files/sabuvezexelonajageri.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/vadibotosevu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/nikufebupivas.pdf
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/bunij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdf
    • https://cdn.shopify.com/s/files/1/0434/7294/5304/files/51998092614.pdf
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/puvolejogiwedud.pdf
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/zojateni.pdf
    • https://cdn.shopify.com/s/files/1/0436/5906/7557/files/zogaganugafozoga.pdf
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/ripcords_exercise_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/vulofewad.pdf
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/62340452918.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/cinematography_techniques_camera_movement.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5fe.bin
c31fb8b3de8be956dddde7407051f4c763af841081f7cdcada777dcd9b92d52f
pdf-font-stream PDF embedded font (sfnt) at offset 0xC5FE 5020 bytes
font_01_sfnt_off0000d712.bin
a87d1ffcf6d0c288000aba3e014e36d316f5c861ba0d296e8a22c88645baaf37
pdf-font-stream PDF embedded font (sfnt) at offset 0xD712 15864 bytes
font_02_sfnt_off000106a2.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x106A2 4324 bytes