Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58616537732c049…

MALICIOUS

PDF

34.3 KB Created: 2020-09-18 21:59:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a65150f9abd227788157830b98fe2a11 SHA-1: f82bfa625249abfd9552749f451bfe310c446869 SHA-256: c58616537732c04985ffe14f9e18c36086100b249c62d70f8019b4a5016028dd
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

This PDF file contains numerous links to external websites, a common tactic for redirecting users to malicious content. The heuristic firings indicate it is a malicious redirector and part of a link farm, designed to obscure the ultimate destination. The embedded URL `https://ttraff.link/wix?keyword=american+power+tips+the+balance+guided+reading+answers` is a clear indicator of malicious intent, likely leading to a phishing or malware download page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.link/wix?keyword=american+power+tips+the+balance+guided+reading+answers
    • http://misefiz.cambridgeintlschool.com/uploads/1/3/1/3/131383541/bced432f6.pdf
    • http://files.olomtech.org/uploads/1/3/1/6/131606118/8287048.pdf
    • http://rolulil.senecavalleyponyclub.org/uploads/1/3/0/7/130739664/kofazebiziguvetikal.pdf
    • http://files.3secondsinthestripes.com/uploads/1/3/0/7/130776104/3850e70.pdf
    • http://geseri.spectrumpilotservices.com/uploads/1/3/1/4/131453540/debakiwaw.pdf
    • http://jimaki.dieseledge.com/uploads/1/3/1/6/131636772/nurukawoxotoxup.pdf
    • http://files.lowellmagenealogy.com/uploads/1/3/0/8/130873941/nutur.pdf
    • http://pokemike.number38spa.com/uploads/1/3/0/7/130775403/nuloxitoje_gajofufototefeg_taxutajukafaled_mujupidebeluxad.pdf
    • https://2c6ca5f0-87da-492b-94d4-c9b6be72855b.filesusr.com/ugd/53cfc7_c1ccb78d0b9047d4b25faa1852a6ce16.pdf?index=true
    • https://df4d1f6d-5d11-4f06-af81-146583829e3f.filesusr.com/ugd/c33cdb_8a433f100f5345608f1129f427eda9e8.pdf?index=true
    • https://d73af2aa-9d13-40ae-8954-5babc2caa64b.filesusr.com/ugd/ebc5f9_d541108fb59d43548cea2c372f4e91b9.pdf?index=true
    • 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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047a3.bin
13ddc3eb4fcb87e6f95332c27702f7b5ae19492a0f3736b248618183feac9b5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47A3 5708 bytes
font_01_sfnt_off00005ae7.bin
c01d556640c4db8d34dc0c25b3d5bc39d1c86f78738dcc30227712ad4d052a90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE7 9820 bytes

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