Malicious PDF — malware analysis report

Static analysis result for SHA-256 105bdec5d6b6e1d7…

MALICIOUS

PDF

49.3 KB Created: 2020-08-07 15:24:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1069da123fa88d5f08a93c5b79f1d1ab SHA-1: dc811e825ac01f27c008fc76c62aae5e83e15254 SHA-256: 105bdec5d6b6e1d789e703954aa0c9c2d6c77d08bd8c41bd60054e88ae992443
154 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which are designed to appear as legitimate documents but ultimately redirect to the malicious domain ttraff.com. This technique is often used to distribute malware or phish for credentials. The ML classifier strongly indicated maliciousness, and the presence of a known malicious redirector URL supports this assessment.

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=bienaventurados+los+misericordiosos+partitura+pdf
    • http://files.westernwc.info/uploads/1/3/0/9/130969300/9471533.pdf
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.pdf
    • http://files.food.madebytricia.com/uploads/1/3/1/3/131381901/pamabasov.pdf
    • http://files.rootedmi.com/uploads/1/3/2/7/132710491/6594480.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/4839/4142/files/jalisijogiz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2134/3647/files/waboteg.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/36482286890.pdf
    • https://cdn.shopify.com/s/files/1/0450/6599/4392/files/simone_de_beauvoir_libros.pdf
    • https://cdn.shopify.com/s/files/1/0431/3514/0007/files/lojagoxaxowotefu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5680/8615/files/arun_sharma_data_interpretation_book.pdf
    • https://cdn.shopify.com/s/files/1/0435/6987/3054/files/bainite_in_steels_bhadeshia.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3453/files/appsc_group_2_syllabus_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6564/7002/files/jamadavorobadivof.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/jonafelo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/65111998518.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66656561998.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5062/files/14719673763.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_off000068e3.bin
db3c8394dfbdb52d8fcbeb310276f1c55e283bdd0e0b352231642de75b255f20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E3 5292 bytes
font_01_sfnt_off00007acf.bin
a85555d62183943f9f0103c9fd5b11a283017bf1b4411f090c789c5d2d608b02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACF 14572 bytes
font_02_sfnt_off0000a737.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA737 4324 bytes

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