Malicious PDF — malware analysis report

Static analysis result for SHA-256 60682832514b8430…

MALICIOUS

PDF

65.3 KB Created: 2020-07-20 03:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaf8194bd5550d4c6e0fca052af609d2 SHA-1: 4ac4bc9bea2cae0126f0f4042af40c8f365ccc87 SHA-256: 60682832514b8430f172fa8cbfbc8a1866cdc317bf0d4e5e234f5280e5d856ec
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links directs to a known malicious redirector, suggesting an attempt to lead users to harmful content. The document body, though heavily obfuscated, appears to be related to search terms, further supporting the lure-based attack pattern.

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.cc/wb?keyword=list%20of%20heavy%20metals%20in%20water%20pdf
    • http://files.sadieparrotta.com/uploads/1/3/1/4/131437296/wokowikezizadulid.pdf
    • http://files.dfdoctorwho.com/uploads/1/3/0/8/130813645/9b1382.pdf
    • http://files.warragulbonsai.com.au/uploads/1/3/2/6/132682063/5932c389bb3.pdf
    • http://files.selectatrackplayer.com/uploads/1/3/0/7/130739978/joxevozadifubim-kulexevozetanet-fokoto.pdf
    • http://files.wichitatoyrun.com/uploads/1/3/2/6/132682899/591870.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://xozekaf917638661.files.wordpress.com/2020/07/milipuvifijemuxegugapow.pdf
    • https://pedosew811448417.files.wordpress.com/2020/07/22346116846.pdf
    • https://suvirowom.files.wordpress.com/2020/06/bovomaloleruwopoxig.pdf
    • https://xevekebi.files.wordpress.com/2020/07/55946493038.pdf
    • https://fidedafekulo.files.wordpress.com/2020/07/26390002470.pdf
    • https://kurukav.files.wordpress.com/2020/07/35483554991.pdf
    • https://kekebig.files.wordpress.com/2020/07/7053190475.pdf
    • https://cdn.shopify.com/s/files/1/0429/3050/3843/files/doxetunazopeguxulizun.pdf
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/87869239377.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56666804065.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96056065099.pdf
    • https://cdn.shopify.com/s/files/1/0434/0557/4309/files/jadoxonevuked.pdf
    • https://cdn.shopify.com/s/files/1/0434/2621/8134/files/mikajilog.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/sojew.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_off0000c189.bin
ce515d69617af0aedbb31beb0f92e0de677d8938a9be0dc0c5a0b09960642423		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC189 5264 bytes
font_01_sfnt_off0000d35d.bin
c1fe8da2bc05bec9661355fb6ca12e68b961fdb8dc14f6e40f9049f25eda1cdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD35D 11012 bytes

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