Malicious PDF — malware analysis report

Static analysis result for SHA-256 c54a6e68647eb9c6…

MALICIOUS

PDF

43.0 KB Created: 2020-07-09 01:47:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-15
MD5: d528b0e2c9aaec25c95eecb89e3cdd23 SHA-1: 21dee3b9abbc8296b84612876c244a96b4b5eae1 SHA-256: c54a6e68647eb9c648b034bd747cb423cecc1e55d2f19e83aea3af48bcdf8403
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF document contains numerous embedded links designed to redirect users to malicious sites or download further malicious PDFs. The primary redirector URL is https://ttraff.com/wb?keyword=atingerea%20lui%20juliette%20volumul%202%20pdf, which is flagged as malicious. The document body itself appears to be a lure, referencing 'Atingerea lui juliette volumul 2 pdf', likely to entice clicks on the embedded malicious links.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wb?keyword=atingerea%20lui%20juliette%20volumul%202%20pdf In PDF document text
    • http://files.fitnessfactory1.com/uploads/1/3/0/7/130739567/3499249.pdfIn PDF document text
    • http://files.signsanddesignsbysabrina.com/uploads/1/3/1/3/131379680/xuvodo.pdfIn PDF document text
    • http://files.keepanopenmind.net/uploads/1/3/0/8/130814642/354913.pdfIn PDF document text
    • http://files.reevespeanutcompany.com/uploads/1/3/1/4/131406835/murijefinijisep.pdfIn PDF document text
    • http://files.jeffcofiretraining.org/uploads/1/3/2/6/132681409/4110604.pdfIn PDF document text
    • http://files.sarahannhayden.com/uploads/1/3/1/8/131857690/b23a23.pdfIn PDF document text
    • http://files.thegoldharvestmusic.com/uploads/1/3/0/9/130969986/251713.pdfIn PDF document text
    • http://files.lingpuisze.com/uploads/1/3/2/7/132740498/bulejekawedut.pdfIn PDF document text
    • http://files.graffitiwgratitude.com/uploads/1/3/0/7/130738814/808e7b1556b9ad.pdfIn PDF document text
    • http://files.haciendasonoma.com/uploads/1/3/2/7/132740218/7130198.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bodukaf.files.wordpress.com/2020/06/91467368272.pdfIn PDF document text
    • https://radizananuf.files.wordpress.com/2020/06/vazun.pdfIn PDF document text
    • https://jawajadepoj.files.wordpress.com/2020/06/rezosix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13908697451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bizisumexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xizujebekox.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AB 5324 bytes
SHA-256: 1f829d2f511c6c9ec467b4118369aece930a81b12cffe14afbbef3cef544ba0e
font_01_sfnt_off000078b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B3 11332 bytes
SHA-256: 43214943e4e3d496cb94bc8f75ecdc0c9b4bfefec6266c677382ebe4582d370a

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