Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1da579f7dd4ed95…

MALICIOUS

PDF

49.3 KB Created: 2020-07-12 12:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ffa4a5fbb43ae0edeb9f75dfa33bd6e SHA-1: 4654f7f7f48964ddd83e373e325b6597b4f59f16 SHA-256: f1da579f7dd4ed957bdddaf4e91957ae49e36b5c593fdd5394fcb3092091e6c6
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as an 'answer key' for 'Maneuvering the middle llc 2013'. This link, ttraff.com, is flagged as malicious. The document also functions as a link farm, embedding numerous other PDF links, likely to obscure the malicious intent and potentially for SEO manipulation. 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/pify?keyword=maneuvering+the+middle+llc+2013+answer+key
    • http://files.reputationthompson.com/uploads/1/3/1/4/131406560/kopug.pdf
    • http://files.mysticgamermike.com/uploads/1/3/1/8/131871419/7009873.pdf
    • http://files.kvag.net/uploads/1/3/0/7/130776346/3184610.pdf
    • http://files.teamthomason.net/uploads/1/3/1/3/131384606/zepejeguzu.pdf
    • http://files.kengallucciocup.com/uploads/1/3/1/4/131407086/8074984.pdf
    • http://files.yorkregionaccidentlawyers.com/uploads/1/3/1/4/131437423/pexoz.pdf
    • http://files.ballesteroselmer3d.com/uploads/1/3/2/6/132681294/midasabetokiti.pdf
    • http://files.holacommunityarts.org/uploads/1/3/0/7/130738572/detuxapatimojimujagi.pdf
    • https://zudarimun.files.wordpress.com/2020/07/sidonev.pdf
    • https://sasagulov.files.wordpress.com/2020/07/limizubunopefuboni.pdf
    • https://rejexurubik.files.wordpress.com/2020/06/pizokezisopovodokifel.pdf
    • https://cdn.shopify.com/s/files/1/0432/6552/3870/files/punurebovasaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/radeziwiwilajumigetadad.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/71910292928.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24413790208.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/budexojimomamuzarumedi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/39778706374.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/nijekuwulusok.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/vakazevovolipinarukudiju.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/bodabibusivi.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_off00007ec6.bin
1035d46c3d3b32d1878e7fb755f10b52118cc2d54bd3885630c3f3a9ede92be9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC6 5936 bytes
font_01_sfnt_off000092ee.bin
3ad312d526e3a6b8f275ede81b960cc9659071ed259ab8cd06e74631057735fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x92EE 10684 bytes