Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c372378f40b01bc…

MALICIOUS

PDF

49.5 KB Created: 2020-09-16 16:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 039ef1b0cfec8758aa845f962152a430 SHA-1: 3e4add2350c0d3a2cd2975e68a91bf100a028586 SHA-256: 1c372378f40b01bc207337c55fe0412b6bc8580e4e645a09855bbf6be7879adf
194 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, disguised with keywords related to a popular game mod. This indicates a social engineering tactic to trick users into visiting a potentially harmful site. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, further supporting the malicious intent.

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.link/wix?keyword=monster+super+league+mod+apk+unlimited+gem In PDF document text
    • http://mezawuf.jeffreyschmelkin.com/uploads/1/3/1/4/131437130/xedakesimo.pdfIn PDF document text
    • http://tekusa.ndnarts.com/uploads/1/3/2/7/132740480/6745591.pdfIn PDF document text
    • http://files.foxwoodequestriancenter.com/uploads/1/3/0/8/130815277/surumomunoxifararab.pdfIn PDF document text
    • http://files.opulenceboutiquewollongong.com/uploads/1/3/0/8/130814515/b77f22d.pdfIn PDF document text
    • http://files.mochambermusic.org/uploads/1/3/2/8/132814138/7219469.pdfIn PDF document text
    • http://fesotovar.danklandsaga.com/uploads/1/3/1/4/131438477/6195078.pdfIn PDF document text
    • http://files.academy522.com/uploads/1/3/1/4/131454270/miwisebiror-binole-zuraza.pdfIn PDF document text
    • http://gizuxe.mrsdawson-classroom.com/uploads/1/3/0/8/130873822/teluxir.pdfIn PDF document text
    • http://mosex.flyfishingcoyhaique.com/uploads/1/3/0/7/130740062/a7df173a2a1.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/1/0432/7469/8902/files/82487269235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8692/0347/files/78414775337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7520/5288/files/pan_card_number_format_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8286/1729/files/38425918893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3039/5552/files/exocarpos_cupressiformis_edible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8044/files/26625870403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9050/9975/files/pemopevo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA0 5348 bytes
SHA-256: c5543c6645260c9efd3b6408d98d493b2ff9a4d6821ab8af71e8e24e6fd96341
font_01_sfnt_off000080bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BF 9916 bytes
SHA-256: 201e3651a9f2e9cc48a94957465f4bf11e627810b93c12161c7179b175ec3c45
font_02_sfnt_off0000a2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2DD 16160 bytes
SHA-256: 53c3ec829963ec5a0af1bff4be2d724acb9959b277e5253d769434e6be684fe1