Malicious PDF — malware analysis report

Static analysis result for SHA-256 1afa9d274c6dcfe3…

MALICIOUS

PDF

59.4 KB Created: 2020-08-04 00:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12b25620794fd5e919594799c82019ea SHA-1: 725cfe01c334d72c138309b29b55cfb8150a3572 SHA-256: 1afa9d274c6dcfe3864899f59c5047c55a274d486372af304b64ac3ee8498704
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure for an 'Openstack tutorial'. The presence of numerous external PDF links, many hosted on seemingly unrelated domains, further supports a link farm or SEO poisoning tactic. The primary malicious URL identified is https://ttraff.cc/wb?keyword=openstack%20tutorial%20for%20beginners%20pdf, which is likely used to redirect users to a final malicious 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/wb?keyword=openstack%20tutorial%20for%20beginners%20pdf
    • http://files.morganvalleycandles.com/uploads/1/3/1/1/131163846/6676581.pdf
    • http://files.robertoster.com.au/uploads/1/3/1/4/131407183/a0754241267445.pdf
    • http://files.nadinedarling.com/uploads/1/3/1/3/131382470/fokupafafu-ladalonigaze-jasogul-jugux.pdf
    • http://files.franklinyouthfootball.org/uploads/1/3/0/8/130874350/gadenelokasu_tuxuka.pdf
    • http://files.shoesheartart.com/uploads/1/3/1/4/131436980/lukotewigofojaj-sodafulatezora-gezuxamuvagife.pdf
    • https://cdn.shopify.com/s/files/1/0440/3052/5590/files/nomenclatura_dos_alcanos_ramificados.pdf
    • https://cdn.shopify.com/s/files/1/0430/3355/9203/files/43076637374.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/tubuxisitelusudibudutido.pdf
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/biodata_format_for_teacher_job_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/6893/8658/files/85466552649.pdf
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/89948060885.pdf
    • https://cdn.shopify.com/s/files/1/0432/3845/7508/files/vakukod.pdf
    • https://cdn.shopify.com/s/files/1/0435/1760/8090/files/cahier_des_charges_definition.pdf
    • https://cdn.shopify.com/s/files/1/0436/2308/8290/files/juxetekofujufut.pdf
    • https://cdn.shopify.com/s/files/1/0432/7551/8107/files/gavixovaxadujoluzip.pdf
    • https://cdn.shopify.com/s/files/1/0432/1722/3840/files/luxati.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_off00009caa.bin
910f701924417088a94e0cd36dd6d9d006a2474af1e80754535493a99a2fe5cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9CAA 5436 bytes
font_01_sfnt_off0000af2a.bin
5df1da971e0abf158ae2d8be1bba00788b0be374b51ea6d6885a3c95bb3be769		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF2A 10344 bytes
font_02_sfnt_off0000d28b.bin
ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD28B 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.