Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6a42667b971f540…

MALICIOUS

PDF

38.5 KB Created: 2020-08-14 17:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc17815fec4b460197a24ae98bcd726f SHA-1: 029a4f20e44617ba09c29536fc516b913a42c9da SHA-256: f6a42667b971f540433c3dd98feac9e7cef9fd5698bf08c1cc2bb5e41ac246d8
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though corrupted, appears to be a lure for a 'Bharat petroleum gas dealership application form', combined with heuristics indicating MFA/credential harvesting. The presence of numerous external PDF links suggests a link farm designed to obscure the ultimate destination or to spread malicious content.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.ru/pify?keyword=bharat+petroleum+gas+dealership+application+form
    • http://files.mascotwesley.com.au/uploads/1/3/0/7/130775737/653139.pdf
    • https://cdn.shopify.com/s/files/1/0443/8809/0022/files/dexirof.pdf
    • https://cdn.shopify.com/s/files/1/0431/2930/7296/files/vexelivuxigev.pdf
    • https://cdn.shopify.com/s/files/1/0432/7741/8656/files/xakujesu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2544/8615/files/bncc_ensino_medio_em.pdf
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/sinezufojivudukajesegew.pdf
    • https://cdn.shopify.com/s/files/1/0431/1416/8487/files/what_does_mending_do.pdf
    • https://cdn.shopify.com/s/files/1/0428/9092/0099/files/54240006350.pdf
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/93731407017.pdf
    • https://cdn.shopify.com/s/files/1/0437/3908/7002/files/xasepotakewaporazumupiwiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5739/files/jasixebuwunefasurekutitag.pdf
    • https://cdn.shopify.com/s/files/1/0437/4206/8887/files/tomiwon.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_off000059da.bin
d09394618762cb196e326b3e187497751de6d965887b226d6956ee2b2030068c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DA 5616 bytes
font_01_sfnt_off00006cd4.bin
64eb27c7024532df16b61fe537ed032491813602509b90a72097c351029c0e36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD4 9456 bytes

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