Malicious PDF — malware analysis report

Static analysis result for SHA-256 04fef0ab1a78a3a3…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 19:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 882c081ef42efa5206d9c306a4f66eba SHA-1: e870eef5ae2bd6e0e5491e958c2a95d760dc2eb4 SHA-256: 04fef0ab1a78a3a335edfd8294d05acebb63177cb87f63ecb2777b4c2aeb3354
154 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary redirector URL identified is https://ttraff.com/pify?keyword=havasu+lake+fishing+reports. The document body, though partially corrupted, suggests a lure related to 'Havasu lake fishing reports', indicating a potential phishing or scam attempt.

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.com/pify?keyword=havasu+lake+fishing+reports
    • http://files.2findyourhomevps.net/uploads/1/3/0/7/130775528/fae25bb030.pdf
    • http://files.chingyutong.com/uploads/1/3/2/6/132681969/mijiveni-tebinozoroz-xomasagikanan.pdf
    • http://datoxox.6daysmemories.com/uploads/1/3/0/8/130813834/gumuwub-wukotuwami.pdf
    • http://powibik.mind4age.com/uploads/1/3/1/4/131408027/6177463.pdf
    • http://jijuzado.garrisonvalleyfarms.com/uploads/1/3/1/4/131407253/jixixagitilapopevoji.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0451/7367/0037/files/mind_body_problem.pdf
    • https://cdn.shopify.com/s/files/1/0432/9829/1870/files/together_with_english_language_and_literature_class_9_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/74605053005.pdf
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/tujowoxof.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/giburixakawobiwuvolu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/76543996201.pdf
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/fe_exam_review_manual.pdf
    • https://cdn.shopify.com/s/files/1/0446/6756/8291/files/20252865428.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/kikizatofofebinaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/3816759807.pdf
    • https://cdn.shopify.com/s/files/1/0434/0826/1277/files/d_c_p_full_form_in_police.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_off000066f2.bin
bfe42062f4f61fb0a97893b751c2d503047a4694ace2453dc171d29b1eefa74b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F2 5248 bytes
font_01_sfnt_off000078c0.bin
dadf4b5cea06e11c2d927df85e4594eeb1183bee56f9bd9b88e0b6a0d62dfc0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C0 9984 bytes

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