Malicious PDF — malware analysis report

Static analysis result for SHA-256 055028541ee62252…

MALICIOUS

PDF

45.3 KB Created: 2020-08-04 01:23:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b450d06f9801407c81815b5ca594f1d3 SHA-1: 1cbd4c5a32a2deec51890ea5796a14f19522cb0a SHA-256: 055028541ee622521b98c8e917283fbe2a3a545019e6514d0e03dc84191910ca
162 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a link farm, and one specifically to a known malicious redirector. The presence of a 'download button' lure suggests a phishing or scam attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect the user to harmful content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=brand+identity+proposal+sample+pdf
    • http://files.unitedagainstinjustice.org/uploads/1/3/0/8/130814055/1fef5d3ca.pdf
    • http://files.halasboutique.com/uploads/1/3/0/7/130776500/0d75ab1ef.pdf
    • http://files.breinerlawllc.com/uploads/1/3/1/4/131452929/kelibes.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/depobowozob.pdf
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/minecraft_optifine_1._8.pdf
    • https://cdn.shopify.com/s/files/1/0437/9446/4929/files/dark_souls_2_mundane.pdf
    • https://cdn.shopify.com/s/files/1/0434/0655/7341/files/nevuxexuvabasegumipamifav.pdf
    • https://cdn.shopify.com/s/files/1/0433/6861/1989/files/tutadepu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5849/5639/files/96843042886.pdf
    • https://cdn.shopify.com/s/files/1/0433/9115/6380/files/23757478235.pdf
    • https://cdn.shopify.com/s/files/1/0428/9141/1615/files/memorandum_for_record_army_example_wlc.pdf
    • https://cdn.shopify.com/s/files/1/0440/6486/6469/files/93962760691.pdf
    • https://cdn.shopify.com/s/files/1/0440/3757/0710/files/dekukemudelelovurafap.pdf
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/fanalifadox.pdf
    • https://cdn.shopify.com/s/files/1/0435/1338/1028/files/darelilujazadewatobuneku.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/99320226057.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_off0000722d.bin
7ddea163202ba7bcd92aa76a827894c3e6b4bdcaf801ce8a9ca15395cc0f589e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x722D 5336 bytes
font_01_sfnt_off00008447.bin
5e814adf762ab21b0d2ec32ab9cbc3df9850978835e28d8b1b053994efda3012		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8447 10524 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.