Malicious PDF — malware analysis report

Static analysis result for SHA-256 6afb644c5652000a…

MALICIOUS

PDF

127.9 KB Created: 2020-07-28 08:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 600ac6f62faf9967cd037164859068e4 SHA-1: 4e634a0650b4255698349e1eb49c8fdd19da0c59 SHA-256: 6afb644c5652000ade6826f765d2a29a00b7f68962db4ea6be02660756d67743
274 Risk Score

Malware Insights

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

The PDF contains numerous links to SEO redirectors, including a critical finding of a malicious redirector at ttraff.com. The document body, though heavily obfuscated, suggests a lure related to a "Google dorks cheat sheet pdf" and a critical heuristic indicates a request for recovery secrets or private keys. This combination strongly suggests a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=google+dorks+cheat+sheet+pdf In PDF document text
    • http://files.nanettelelaulu.com/uploads/1/3/0/7/130740517/6699142.pdfIn PDF document text
    • http://files.shopharperfinch.com/uploads/1/3/1/6/131636843/kejimojavu.pdfIn PDF document text
    • http://files.voyageurshotokankarate.com/uploads/1/3/1/3/131398144/wovamesusufeled.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7392/9378/files/45298349460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/12439877651.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6758/0322/files/29219207883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/54023153147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75130531250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/wufefozeboxufitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7310/9152/files/dekezizaxokodag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9543/2099/files/65107898810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/8300171201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/julikopixarugozorov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4873/9740/files/82002926981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7852/4832/files/kelariduzazutegezosawuxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1059/4728/files/nizofemivit.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A7B3 5144 bytes
SHA-256: 283ead419295e0664fa5310dc5c9169ff208bf7b42138a4e270c31cce5330a5b
font_01_sfnt_off0001b952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B952 18228 bytes
SHA-256: 52405d59928400da1dd7c5938936ad6d2f9ec9a62e6b3302bc0cce7e93de1aa5