Malicious PDF — malware analysis report

Static analysis result for SHA-256 2574f0f84732ed5e…

MALICIOUS

PDF

58.1 KB Created: 2020-08-07 19:03:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdf1406cf97ae0fdfbf7e04253eb7c2c SHA-1: e150c2e4c370913f82988b5b94c90d206ddb715b SHA-256: 2574f0f84732ed5e69c8008f3b1de4c96672860e7dc3d8f2d1742af306da874f
208 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a critical PDF_MALICIOUS_REDIRECTOR_LINK firing on 'https://ttraff.cc/pify?keyword=aadhar+card+download+pdf+by+aadhaar+number'. The document body and embedded links suggest a lure related to Aadhar card information, likely a phishing attempt. The presence of numerous external PDF links also indicates a link farm strategy, potentially to distribute malicious content or improve SEO for malicious sites.

Heuristics 6

  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=aadhar+card+download+pdf+by+aadhaar+number
    • http://files.eroticabotanica.com/uploads/1/3/2/6/132683137/minanujonu_mikovalujukib_gamuzup.pdf
    • http://tekena.historywithmrsb.com/uploads/1/3/1/4/131453574/8096280.pdf
    • http://files.graysummitchurch.com/uploads/1/3/1/4/131438211/runojijax.pdf
    • http://files.annieleezimerle.com/uploads/1/3/0/7/130738712/lukaxifavo_daramigepevunu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4628/1120/files/lijumodowudit.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/84289669468.pdf
    • https://cdn.shopify.com/s/files/1/0431/9766/1348/files/iliad_book_2_summary.pdf
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/biorefinery_process.pdf
    • https://cdn.shopify.com/s/files/1/0435/2265/4362/files/jilerituvunepaludurez.pdf
    • https://cdn.shopify.com/s/files/1/0439/5171/8558/files/13622336508.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/47947090994.pdf
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/mosagemajumebizuki.pdf
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/musuromebixapiduwilisak.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d87.bin
ee7b1fe4d67401b88eee70ca579e488e32ba5f8dfeddb0671e8d4fd1b98efaa8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D87 5540 bytes
font_01_sfnt_off0000904a.bin
fcc062162d99da06524471dfb359d7282025e634fadd54bb67b1bc07e735f90b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x904A 9936 bytes
font_02_sfnt_off0000b284.bin
764fe263e68fd20aff2bbd96e69f5a400d440299d02096befa162391f913c7cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB284 16144 bytes
font_03_sfnt_off0000c7c1.bin
a0d86b3d11594be0b316af0d2b4b6264f63346b84500dd6e769d52b19e5a15d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C1 5372 bytes

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