Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59c192d2903c76f…

MALICIOUS

PDF

62.7 KB Created: 2020-08-24 09:12:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c5e035fc8d58234a380523e5e5976fc9 SHA-1: cb5592bb28fa5224f32287b14755ed017794ff3b SHA-256: d59c192d2903c76f48b75847cfc154314de187506b7cf5c7c305f6877d2e58b3
168 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to potentially malicious redirectors like ttraff.com. The document also includes a lure for a password-protected archive, suggesting a multi-stage infection process. The presence of a visual download button further supports the social engineering aspect of this attack.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.com/pify?keyword=church+administration+software+free
    • http://mevinozo.godorabsurdity.com/uploads/1/3/1/4/131438641/gowar.pdf
    • http://xofud.thinkdifferentgomez.com/uploads/1/3/0/8/130873952/zusaligati.pdf
    • http://files.anewbeginningpreschool.com/uploads/1/3/1/6/131607712/ruruxomodoj-xigozinila-dezet-timamarisifek.pdf
    • http://files.miss-a-science.com/uploads/1/3/1/3/131379113/jerutaludi_pozevi_nonel_xubanelul.pdf
    • http://files.dandelionkisscustomphotojewelry.com/uploads/1/3/0/8/130815311/sejesup_lekuxemil_defame_sapimil.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/jitaduxiledat.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/wordly_wise_book_7_lesson_14.pdf
    • https://cdn.shopify.com/s/files/1/0435/3920/2207/files/blackboard_palm_beach_state.pdf
    • https://cdn.shopify.com/s/files/1/0430/9303/3117/files/denobabozobemubiwatisik.pdf
    • https://cdn.shopify.com/s/files/1/0434/8179/2664/files/jegejuzedow.pdf
    • https://cdn.shopify.com/s/files/1/0431/3330/4986/files/sosodutetova.pdf
    • https://cdn.shopify.com/s/files/1/0441/3181/1480/files/tixekowaladogasoxiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6141/9927/files/vilodawekojararemagef.pdf
    • https://cdn.shopify.com/s/files/1/0431/6633/5142/files/40392765771.pdf
    • https://cdn.shopify.com/s/files/1/0438/3123/0624/files/apache_hadoop_cookbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/vitunetugerarupoduru.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_off0000b5d3.bin
62a7f999683c4e822af77def01eda43831573db0b68c1d47434f158d5237087d
pdf-font-stream PDF embedded font (sfnt) at offset 0xB5D3 5228 bytes
font_01_sfnt_off0000c782.bin
e4cd46b34fbc2fed3f3222db461c5ea8a759b72034491692cba5fed0032f6ef2
pdf-font-stream PDF embedded font (sfnt) at offset 0xC782 11220 bytes