Malicious PDF — malware analysis report

Static analysis result for SHA-256 448e8272aa529107…

MALICIOUS

PDF

115.8 KB Created: 2020-08-24 13:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c246d645eab92aa93ddfa63272d544ef SHA-1: a03c112a17754c267472b98109b11cf878936805 SHA-256: 448e8272aa52910715127ee68cc02735e1943df1c883d6a92b550da8c68251d0
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many hosted on Shopify, likely for SEO manipulation or to obscure the final malicious destination. The presence of a malicious redirector indicates an attempt to lead the user to a compromised or malicious site.

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.cc/pify?keyword=bahubali+2+telugu+full+movie++link
    • http://files.hobbyelectronics.net/uploads/1/3/1/4/131437308/7286f0e23720.pdf
    • http://files.bordencreeklabradors.com/uploads/1/3/1/3/131383541/jevulegujejin-ritumejo.pdf
    • http://files.klayworks.com/uploads/1/3/0/7/130739155/4495910.pdf
    • http://files.fallentree.co.uk/uploads/1/3/1/6/131607063/vagiru.pdf
    • http://files.hemp-aura.com/uploads/1/3/0/7/130740617/2e86d6df8f.pdf
    • https://cdn.shopify.com/s/files/1/0431/0266/6914/files/vibakowaro.pdf
    • https://cdn.shopify.com/s/files/1/0438/3784/9762/files/90886503268.pdf
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/dixopiwutarotesumikipaxod.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/88553594635.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/33627823868.pdf
    • https://cdn.shopify.com/s/files/1/0433/8276/7779/files/92026910038.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3415/files/94984730902.pdf
    • https://cdn.shopify.com/s/files/1/0439/8183/2350/files/greenhouse_effect_project.pdf
    • https://cdn.shopify.com/s/files/1/0429/9902/1717/files/68489016352.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8947/files/spring_framework_specification.pdf
    • https://cdn.shopify.com/s/files/1/0436/0146/1410/files/chemistry_final_exam_review_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/5395/4725/files/status_video_free_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0430/8638/1207/files/superman_logo_fonts.pdf
    • https://cdn.shopify.com/s/files/1/0432/7899/1520/files/127781210.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013c28.bin
e0cace0fbb8ed1ed38388b3f0c286755c8210c5fc51d41ebee94f99f66d87297		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C28 12404 bytes
font_01_sfnt_off000164e6.bin
8a7b421a9753e3dfbaf7eda52af18380ad4d1449ec4f01c51919f24b7df6dfd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x164E6 5232 bytes
font_02_sfnt_off000176a9.bin
791295e0911cb9b197df6ccc0035577c72428438732d5e0cbcef0a8a1820d2f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x176A9 11200 bytes
font_03_sfnt_off00019d20.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19D20 16164 bytes
font_04_sfnt_off0001b237.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B237 4324 bytes

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