Malicious PDF — malware analysis report

Static analysis result for SHA-256 019c0a46547e4b20…

MALICIOUS

PDF

42.6 KB Created: 2020-10-09 15:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 00f40da2e3ce89adaf89c16d03fc6581 SHA-1: daeb85c559fac5dec903154baa786976fd5d9599 SHA-256: 019c0a46547e4b20a1cfe36193d977cf9f30e998ea25e173f8704e34d58cfe55
174 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to potentially malicious or redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'parking permit map' and includes a URL that is flagged as a malicious redirector. The presence of numerous links, including one to a known malicious redirector, indicates an attempt to direct users to harmful sites, likely for phishing or malware distribution.

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://gettraff.ru/strik?keyword=unm+parking+permit+map In PDF document text
    • https://site-1038679.mozfiles.com/files/1038679/23101152051.pdfIn PDF document text
    • https://site-1042282.mozfiles.com/files/1042282/lazajugad.pdfIn PDF document text
    • http://wulonusun.seed2bowlfarm.com/uploads/1/3/1/0/131070491/lusefiwasatigifezok.pdfIn PDF document text
    • http://jeduzo.grandsalinelibrary.com/uploads/1/3/2/6/132696558/lerer-kebifeg.pdfIn PDF document text
    • http://files.charlieinit.com/uploads/1/3/0/7/130739906/9039321.pdfIn PDF document text
    • http://tidunom.communitymidwivesofbrantford.ca/uploads/1/3/0/9/130969283/lepugawu-sepejosalipuke.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8566/9565/files/showbox_latest_apk_no_ads.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7954/4221/files/sebile_magic_swimmer_ghostescent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2200/2587/files/wiley_middle_school_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4824/1818/files/zededaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/bejofebazoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6946/4727/files/dc_home_improvement_salesperson_license_renewal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0156/3301/files/onn_bluetooth_headphones_pairing_to_iphone.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B3 4984 bytes
SHA-256: b4257bcec95a1e383f7f04e8baa50ec4ce16e5f2f8f6f568ba85349eb6c5e223
font_01_sfnt_off00007a97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A97 10344 bytes
SHA-256: 17507ffa398ebe798cccb11344d670d509fa6b312154439ceb6080aab5f8369b

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