Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea6fdbe58553b0ec…

MALICIOUS

PDF

41.7 KB Created: 2020-09-17 13:13:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4afe9911475337985f9e438c58a1bb84 SHA-1: 2d244991ad0cd3af7f9c4d8ddfcfc5f236fb2f9d SHA-256: ea6fdbe58553b0ec2174000c20b553572f41ead7cc7947fc48b3e60016a491e2
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic. One of these links, https://ttraff.club/wix?keyword=june+2016+algebra+2+regents+explained, is flagged as a malicious redirector. The document body also contains this URL, suggesting it is a primary lure. The presence of numerous links points towards a strategy of distributing malicious content or phishing attempts through a link farm.

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.club/wix?keyword=june+2016+algebra+2+regents+explained
    • http://files.beyouclothingcollection.com/uploads/1/3/2/6/132695329/rabegax.pdf
    • http://raxax.striveconference.com/uploads/1/3/1/6/131637027/6470536.pdf
    • http://biwoxariv.mhes-ses-bandstrings.com/uploads/1/3/0/7/130776132/83f9b973bfd75e6.pdf
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/sawikaxovixijugemi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0950/6471/files/pesosewajo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdf
    • https://cdn.shopify.com/s/files/1/0433/0189/6347/files/cancer_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/28082049114.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/46023313368.pdf
    • https://cdn.shopify.com/s/files/1/0462/2932/3927/files/metubifibupasiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6482/files/boogie_nights_song.pdf
    • https://0dd77c70-ee03-4c0d-b57f-9bfe35cfd92b.filesusr.com/ugd/90c678_bc64425a4ea24a4ea6cadaf4f5327dbd.pdf?index=true
    • https://a7ebb2a9-e15d-4477-8461-a089372cacdd.filesusr.com/ugd/221eaa_de37bc24ff314d2db4b9a2c57fbf49ec.pdf?index=true
    • https://e00d25a7-354c-453f-8161-5d564648afd1.filesusr.com/ugd/cf5aa9_fec3aa6b765849999461243dadc10c8b.pdf?index=true
    • https://1d6db950-d993-490c-99a6-a33aed402e49.filesusr.com/ugd/c6ac46_8e2cedfb3ce74bba9b79c2c615aaf198.pdf?index=true
    • 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_off000062ed.bin
868d781ca2b9779e24246507aca63b0baf97b4d7a57bee146db7f6899fb4eff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62ED 5804 bytes
font_01_sfnt_off000076ba.bin
63e4f4509d99d843fe45a7f1b530d60afd39d8e6b72dfec95f36fd24d724f0bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76BA 10364 bytes

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