Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f07e5c5ec900d7f…

MALICIOUS

PDF

48.0 KB Created: 2020-08-16 22:07:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7faf94fce2b83d0f1d5b6e28e799b289 SHA-1: 124a38a9fc99c73f599c0f86e47231cb11e99a54 SHA-256: 2f07e5c5ec900d7f0a0c75101acd5b68276ab55af3f3bc1d34277334f2bbcf93
128 Risk Score

Malware Insights

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

The PDF file contains a deceptive lure for a 'PDF epub to Kindle tool' and includes a call-to-action button. It embeds numerous links, with one specifically pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=pdf+epub+to+kindle+tool'. This suggests the document's primary purpose is to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

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.ru/pify?keyword=pdf+epub+to+kindle+tool
    • http://nixil.step-by-stepsurgery.com/uploads/1/3/1/8/131858156/27a90dfc.pdf
    • http://files.olgcid.org/uploads/1/3/0/7/130739210/redijedowa_sewana_buzekunatiz_xojufamozufub.pdf
    • http://files.tbeeks.com/uploads/1/3/0/7/130738696/8d7fac7.pdf
    • http://files.nattycordonkayaking.com/uploads/1/3/0/9/130969801/3816610.pdf
    • http://files.meyanahotel.com/uploads/1/3/1/1/131163976/5957537.pdf
    • https://cdn.shopify.com/s/files/1/0435/6639/9647/files/59143665243.pdf
    • https://cdn.shopify.com/s/files/1/0440/3612/8933/files/xegepariselopawulipusobi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3197/8403/files/foreseeresults_com_sprouts.pdf
    • https://cdn.shopify.com/s/files/1/0430/9689/9745/files/minecraft_mod_rejections.pdf
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/foboxek.pdf
    • https://cdn.shopify.com/s/files/1/0451/0269/4563/files/anticoagulant_list.pdf
    • https://cdn.shopify.com/s/files/1/0434/3808/0167/files/ielts_simon.pdf
    • https://cdn.shopify.com/s/files/1/0432/5215/4532/files/webutegovudariporepuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3895/files/risijugurosudituravol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6880/files/97434222413.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_off00007116.bin
7487cef2dad47f7b5788da040a108943f319c1b8fe9a08ca81a56ed6fad1caed
pdf-font-stream PDF embedded font (sfnt) at offset 0x7116 4636 bytes
font_01_sfnt_off000080e3.bin
0cea962d538f580c6f60603649bcf08ef693494776f8c426fb834634c5aa0785
pdf-font-stream PDF embedded font (sfnt) at offset 0x80E3 10652 bytes
font_02_sfnt_off0000a54c.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xA54C 4324 bytes