Malicious PDF — malware analysis report

Static analysis result for SHA-256 945ab294c4a75bf3…

MALICIOUS

PDF

119.4 KB Created: 2020-08-03 22:32:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ae78a6469afbf4cedbaf1874e1b8662 SHA-1: edf21713c2586875f8b9136240b34fccee49d0c7 SHA-256: 945ab294c4a75bf3549407c5324e678347bbb418fd06aea684833729666db940
228 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a redirector link and lures for advance-fee scams, MFA harvesting, and callback phishing. The document body, though heavily obfuscated, references 'hdfc bank credit card closure form pdf', aligning with the phishing lure. The primary malicious URL, 'https://ttraff.ru/pify?keyword=hdfc+bank+credit+card+closure+form+pdf', is a critical indicator of a redirector service.

Heuristics 7

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=hdfc+bank+credit+card+closure+form+pdf
    • http://sufozutez.estellaseven.com/uploads/1/3/1/3/131381428/loporinaluvoxetizel.pdf
    • http://files.sheilalangston.com/uploads/1/3/0/7/130775934/9073989.pdf
    • http://files.harvestbaptistchurchmd.com/uploads/1/3/1/4/131406736/39dd1f0447.pdf
    • https://cdn.shopify.com/s/files/1/0437/2732/3301/files/67738246018.pdf
    • https://cdn.shopify.com/s/files/1/0429/6205/9427/files/50504931922.pdf
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/95255078361.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9842/files/trolling_gui_roblox_script.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/vilasobalirelipevokapeme.pdf
    • https://cdn.shopify.com/s/files/1/0431/3274/7927/files/redokamarodudivotufife.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/bikusapemutedimilejunip.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/puxap.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/42198772040.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_off00019878.bin
f1eeed1d8b7a9beeb58c1afd9f62855692cdca567c02ca18ebd22e14009951c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19878 5464 bytes
font_01_sfnt_off0001aaf7.bin
4be6186462cb9ef46001315b501b3ea3098139a339653c20c36aa8ed20a00b92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AAF7 10888 bytes

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