Malicious PDF — malware analysis report

Static analysis result for SHA-256 58057fe18733ea47…

MALICIOUS

PDF

33.7 KB Created: 2020-09-01 02:00:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 818ca763ad1193af34d884deeb37bb52 SHA-1: c5a6b9d4a0dac132e831bb43dd00feadf6eb3252 SHA-256: 58057fe18733ea47bea1c0293f879413ea5ed543836167160db22f9370eebc0f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=edhs+2016+official+report'. Additionally, it exhibits a PDF link farm heuristic, with 24 external PDF links, the first of which is 'https://cdn.shopify.com/s/files/1/0436/1748/4957/files/mabodijebogasafilatokika.pdf'. The document body contains obfuscated text but includes the malicious redirector URL and several Shopify URLs, suggesting a social engineering attempt to drive traffic to malicious infrastructure.

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.cc/wix?keyword=edhs+2016+official+report
    • https://cdn.shopify.com/s/files/1/0436/1748/4957/files/mabodijebogasafilatokika.pdf
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/xejuwurikuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/2584/1819/files/puwatoxutorosilegil.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/fifarobup.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/vukobugonodopir.pdf
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/don_t_let_me_down_mp3_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/gizmo_calorimetry_lab_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/6146/0644/files/happy_birthday_music_sheet_cello.pdf
    • https://cdn.shopify.com/s/files/1/0435/6331/9445/files/orthopedic_assessment_format.pdf
    • https://cdn.shopify.com/s/files/1/0437/2014/7095/files/22025369631.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/pogosogilovibiwuzim.pdf
    • https://cdn.shopify.com/s/files/1/0440/5755/9190/files/levoxepubimetozuzenidol.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_off00004534.bin
414d8ba103f861c584457cb8b60ec8e6e712be0e1e5e8ba899c2a9c8ff5d2522		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4534 5680 bytes
font_01_sfnt_off00005890.bin
56e2b35abbd5a558973209c8a7f3c16f0d213c627ce715d1b9237e0f4682261b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5890 9852 bytes

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