Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d46fc13416726a4…

MALICIOUS

PDF

40.8 KB Created: 2020-08-24 04:32:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ac1541485b3e29d2ac903e4be6c843b SHA-1: dd6b89a44da096ebaf00e2107ac2842941c63e36 SHA-256: 4d46fc13416726a4fbae354985b4e221659caedb3bdfdec0dc3ef4845c8f84fb
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains references to 'crack after effect cc 2017', suggesting a lure for pirated software. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or downloads.

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.
  • 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.
  • 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/pify?keyword=crack+after+effect+cc+2017+bagas31 In PDF document text
    • http://dufigor.abbystafford.com/uploads/1/3/2/6/132682646/370bada60.pdfIn PDF document text
    • http://foroke.crawlspaceencapsulations.com/uploads/1/3/0/7/130776760/kuvovagaw.pdfIn PDF document text
    • http://files.metiworld2020.org/uploads/1/3/1/8/131871859/memiwodubosukeg-nekel-taderebux.pdfIn PDF document text
    • http://sasufo.helpurchild.net/uploads/1/3/1/6/131606271/gufoxufu_romugiv_tizitazejodup_fokoxaso.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/1/0433/4911/5029/files/14799317461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8493/7384/files/chakra_balancing_meditation_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/55017241016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5561/8977/files/2665083002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/2885062921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/27635629172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/jubalolevolowakufisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/23579804065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/kovaak_s_fps_aim_trainer_scenarios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2455/files/iso_iec_17025_quality_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/76044526421.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_off00005ded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DED 5696 bytes
SHA-256: 6015cedeec330f20bbabf0fbd355c508ae93a141947dc61987c8e2236a4c5845
font_01_sfnt_off0000716b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716B 11292 bytes
SHA-256: 0f2f7343030132b5aed54abb64e286a0f36934f0076cb8df749e1bfd0f633672

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