Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d15af4015edef70…

MALICIOUS

PDF

39.9 KB Created: 2020-08-28 02:28:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7826830fdf4d734b8043176dd9b3b9d4 SHA-1: 034dde5b02f4d71c6f829f1eebbe2b4450d06096 SHA-256: 9d15af4015edef70215a901a23dfe023f46b6de2da2eaf2b0562365d94de4e89
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a critical heuristic firing for a malicious redirector link to 'https://ttraff.com/pify?keyword=simile+metaphor+personification+worksheet+with+answers+pdf'. This indicates a likely phishing or malware distribution attempt, disguised as an educational worksheet. The file also exhibits characteristics of a link farm, further supporting malicious intent.

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.com/pify?keyword=simile+metaphor+personification+worksheet+with+answers+pdf
    • http://files.champagnesparkle.com/uploads/1/3/1/6/131607053/wabevamufola.pdf
    • http://files.lgmcferren.com/uploads/1/3/0/7/130776021/porekerefusevoga.pdf
    • http://files.kirksteadja.com/uploads/1/3/1/3/131382841/25533b968.pdf
    • http://files.bayareapatioliquidation.com/uploads/1/3/1/3/131380841/guxejowunor.pdf
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/sasekomuful.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/97153039135.pdf
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/6679070934.pdf
    • https://cdn.shopify.com/s/files/1/0430/8795/4073/files/bijan.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/57770462823.pdf
    • https://cdn.shopify.com/s/files/1/0431/6558/1469/files/autodesk_maya_2013_free.pdf
    • https://cdn.shopify.com/s/files/1/0436/7358/3781/files/suraj_bhai_name_ringtone_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/88770523110.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6149/files/d_d_character_backstory_template.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_off00005cbb.bin
48092674d884c914b78eb1c62515da37672b80abf95343fe006b5026a060038b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CBB 5656 bytes
font_01_sfnt_off00006fd1.bin
8ca29b02037f82be234246927e5aa0fe2bcec7344bcf475bc1022d559209eb18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD1 10120 bytes

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