Malicious PDF — malware analysis report

Static analysis result for SHA-256 6555c1f6dabee3de…

MALICIOUS

PDF

54.1 KB Created: 2020-09-01 13:12:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc7777cf1edcb78c647105550cadf5c2 SHA-1: b00e0c1dc9c865959b5ac7bf9877be1e7a7aa828 SHA-256: 6555c1f6dabee3decf53e9d52003c4caf43d5cecc5635f6290f36a5f90be2af2
222 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains heuristics indicating it is a malicious redirector and employs an advance-fee scam lure, suggesting a phishing or scamming attempt. The embedded URL points to a redirector service, likely to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to 'Bajaj Allianz travel insurance' and the malicious URL, reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=bajaj+allianz+travel+insurance
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/6908d7_045361a9c4fd4148ba3f9e1c703a57c3.pdf
    • https://static.usrfiles.com/ugd/5899d5_686628f5ff574d3cbdac9ccdbfe3efb4.pdf
    • https://static.usrfiles.com/ugd/cac9e4_7fb663f0aaca464b8b7a10a1e71a9d12.pdf
    • https://static.usrfiles.com/ugd/b8c837_14de10e179e44cd793b120689067bb03.pdf
    • https://static.usrfiles.com/ugd/b8c837_794924bd2501441fa6219088ae1e30bc.pdf
    • https://static.usrfiles.com/ugd/8cbfce_5bca67422570455fa45b8f04f8031a55.pdf
    • https://static.usrfiles.com/ugd/b6edda_60d6a82cec1b402c9f228dbdd44a90a7.pdf
    • https://static.usrfiles.com/ugd/b85eb0_51319eb41ff7493690ba358ec1125bf4.pdf
    • https://static.usrfiles.com/ugd/5b5da7_854f8d89adf8458a9a90ef27768cad24.pdf
    • https://static.usrfiles.com/ugd/18f527_6dd39860477a48e498075b4174b059ef.pdf
    • https://static.usrfiles.com/ugd/3fc21f_70656bf9843f4fbfa4f9b61cbad2bc16.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_696614975462464db4470d96cf0366a4.pdf
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/nobidoxiwaneze.pdf
    • https://cdn.shopify.com/s/files/1/0435/3464/7451/files/61659781802.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009375.bin
7694a79ad822e87b44106dc9c1dc38dff6048509fb0d2d37941bc56539f6445d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9375 5028 bytes
font_01_sfnt_off0000a4b0.bin
aae5fe89d023be5d3cdc2f358ada99ecc0748a4addba9a846f0ce82b0f2e8a65		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4B0 11652 bytes

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