Malicious PDF — malware analysis report

Static analysis result for SHA-256 618a572e36962bd3…

MALICIOUS

PDF

42.0 KB Created: 2020-07-11 10:06:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 565c05211ed623ec279e94f299f7effd SHA-1: 552f2991c1c35cf1291038d5b8438bb04629a234 SHA-256: 618a572e36962bd3e470bf6aff745653de092111d7d44706cb9b80bdfc575b29
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The document body, though heavily obfuscated, also contains URLs that appear to be part of a link farm. This suggests the primary purpose is to redirect users to malicious or spam-related websites.

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/pify?keyword=apologize+one+republic+sheet+music+pdf In PDF document text
    • http://files.cozywritersroom.com/uploads/1/3/2/3/132302819/meveram.pdfIn PDF document text
    • http://files.abqmobilenotary.com/uploads/1/3/0/7/130775859/pevukovax.pdfIn PDF document text
    • http://files.gotmygoat.com/uploads/1/3/1/4/131453199/b394c37beab09.pdfIn PDF document text
    • http://files.ilikai2120.com/uploads/1/3/2/6/132695874/345a33d.pdfIn PDF document text
    • http://files.elkhartschoolofmusic.com/uploads/1/3/1/8/131871556/dorojuxiwat_gifovatuwube_rapewetaduw.pdfIn PDF document text
    • http://files.restauranthibiscus.com/uploads/1/3/0/7/130776841/5106130.pdfIn PDF document text
    • http://files.saverycreekfurniture.com/uploads/1/3/1/4/131437636/4f08052b71241.pdfIn PDF document text
    • http://files.constantlyintouch.com/uploads/1/3/0/9/130969637/mefujeseg.pdfIn PDF document text
    • http://files.daryljarod.com/uploads/1/3/1/4/131453176/mimodeda.pdfIn PDF document text
    • http://files.someday-l.com/uploads/1/3/1/3/131398177/gifubusepegere_xotiwivix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://sulupovabas.files.wordpress.com/2020/07/44056734931.pdfIn PDF document text
    • https://sudemep253065703.files.wordpress.com/2020/07/gefexado.pdfIn PDF document text
    • https://vewulox.files.wordpress.com/2020/07/wevat.pdfIn PDF document text
    • https://dapogudo.files.wordpress.com/2020/06/50596942891.pdfIn PDF document text
    • https://sibowed.files.wordpress.com/2020/07/46273485357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0353/files/67212338440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55742160690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xawifakupubegezixezo.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_off0000565d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565D 5420 bytes
SHA-256: ebd60362c3e799880ac6edfa5e5aa3791a66c755145bdc654771c430a926adc4
font_01_sfnt_off00006898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6898 15392 bytes
SHA-256: 09609232fcf4e9925d30205373c5eeb1b5ed5926af309105ac9d10af308ca477

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