Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d262ed886a831a…

MALICIOUS

PDF

73.6 KB Created: 2020-08-11 14:38:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c68d7e9cb87f9ec3717f84d7c61f0563 SHA-1: 0cb8adf51a1de2825c939b2374707c0c71ea95c0 SHA-256: 68d262ed886a831af6f36cc52d8d74876baeb45595b7e221ae639698d651b335
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, with one specifically identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'central park attractions map pdf' and a URL that appears to be part of a link farm designed for SEO manipulation. This suggests a phishing or scam attempt where the user is tricked into clicking a link that leads to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=central+park+attractions+map+pdf
    • http://gajif.jonascain.net/uploads/1/3/1/4/131406013/zibifofoji-sadibet-zufuzupupib.pdf
    • http://files.mapuae.com/uploads/1/3/0/7/130776204/9788951.pdf
    • http://noloka.impact2020conference.com/uploads/1/3/2/3/132302780/nevowomanafeb-fosibepawenisu-wogasilow.pdf
    • http://files.crupropertymanagement.es/uploads/1/3/0/8/130814329/ravukomixa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/4093/1991/files/41693339781.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/robidavetarufugitotezaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/73133400099.pdf
    • https://cdn.shopify.com/s/files/1/0431/0587/8173/files/90706029604.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdf
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/jukipuwerexari.pdf
    • https://cdn.shopify.com/s/files/1/0427/9736/7452/files/15100631266.pdf
    • https://cdn.shopify.com/s/files/1/0435/4709/9290/files/como_cambiar_un_documento_de_a_word_en_mac.pdf
    • https://cdn.shopify.com/s/files/1/0447/0875/7660/files/smart_agriculture_technology.pdf
    • https://cdn.shopify.com/s/files/1/0435/2039/3380/files/basic_accounting_objective_type_questions_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdf
    • https://cdn.shopify.com/s/files/1/0440/6090/1528/files/sadibonobajaxu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d499.bin
1cf9121900c1c6ed8014c3af976b60308ab7953ab2cf10b00217623fc62786e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD499 5176 bytes
font_01_sfnt_off0000e613.bin
e472c7a07a6ba03a0468fd0d8a57cdce333c5e1a180011c33a1d30af5acb9ea5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE613 10960 bytes
font_02_sfnt_off00010ad8.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD8 4324 bytes

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