Malicious PDF — malware analysis report

Static analysis result for SHA-256 12080034343f3468…

MALICIOUS

PDF

44.2 KB Created: 2020-08-05 00:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b6a9ef1bf0b8e85634eaba863a30439 SHA-1: b60fa72607880a8b4c58467c0616554741dc9530 SHA-256: 12080034343f34689ac1a282d9ee669b3205de265c48d7be5a9a6587b66f58da
174 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one prominently featuring 'equifax data breach settlement claim form pdf' and redirecting to a malicious URL. The heuristic firings indicate this PDF is a redirector and part of a link farm, likely designed to lead users to phishing or scam content. Although no scripts were extracted, the document's structure and embedded links strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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.cc/pify?keyword=equifax+data+breach+settlement+claim+form+pdf
    • http://files.womenwhobleed.com/uploads/1/3/1/8/131871433/7428409.pdf
    • http://ginor.mycobbisland.org/uploads/1/3/0/7/130775350/goleberanuvosa-kuvabuxuwaz-fusofaxofobit.pdf
    • http://files.tukteacompany.com/uploads/1/3/1/6/131606349/jivewavotig_xawuma_tatugideto_kotezexewa.pdf
    • http://files.shearserenitysalon.com/uploads/1/3/1/3/131383553/53b9878d6b0f11.pdf
    • http://files.nutsaboutcountry.com/uploads/1/3/1/6/131637881/rasonigupeta_wifiko.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/pepeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/7506/6273/files/90924780352.pdf
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/pgyer_movie_box.pdf
    • https://cdn.shopify.com/s/files/1/0433/6461/4303/files/27251215331.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6335/files/lelasusipor.pdf
    • https://cdn.shopify.com/s/files/1/0428/3092/1895/files/70184856683.pdf
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/zuvizizujezesibavit.pdf
    • https://cdn.shopify.com/s/files/1/0434/3696/6055/files/nirejubujemuzejaxo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedapefe.pdf
    • https://cdn.shopify.com/s/files/1/0433/9531/7918/files/25892059526.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_off00006b93.bin
e6cef91c737b7da9e1fd04df5132dd8089d1eb9f74a82e737f40b64f0fb43b88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B93 5684 bytes
font_01_sfnt_off00007ec6.bin
957504775779d076277e01750f01abaf5c12edc5bff1de8fc12899723835562f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC6 10928 bytes

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