Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8045d94deeb8af2…

MALICIOUS

PDF

45.0 KB Created: 2020-07-26 15:21:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c9b48deca562aece8d0e9b5eaf9c162 SHA-1: 1544454921a0177765f8e041e4ac09da8a20a890 SHA-256: a8045d94deeb8af2da3b263993c03350d800fda3ad530daf52dbfc84712c70d8
234 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to a link farm hosted on cdn.shopify.com, which is a strong indicator of SEO poisoning or link farming for malicious redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.cc. The document also provides password instructions, suggesting it's a lure to keep payloads encrypted until after gateway scanning. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=janapada+geethalu+songs++naa+songs In PDF document text
    • http://files.suzannevyletel.com/uploads/1/3/0/7/130739633/lugotin_sizefis_metepubiwekas.pdfIn PDF document text
    • http://files.amycerickson.com/uploads/1/3/0/9/130969446/girufovekezeter_ledojiguje_zewakogirusopam_sokexolaxod.pdfIn PDF document text
    • http://files.groove-republic.com/uploads/1/3/0/7/130740211/8068419.pdfIn PDF document text
    • http://files.jordanmclayton.com/uploads/1/3/0/9/130969655/e4bff2a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/92206752811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8881/2959/files/99737302849.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/pawoponanudotuserijat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/61984075245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/mivuvafaxufumogopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1602/8309/files/nukega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/metuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2979/8818/files/guzufarawamel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/43196370733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/99676798211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/rikimasojetawizodaroj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5286/files/54692249568.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E81 4948 bytes
SHA-256: e31baafa6c8c40ffd46c98a224b9a4f47e90453557f1eb0f23919dbe68722a58
font_01_sfnt_off00006f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F47 2452 bytes
SHA-256: 8e3f45399d90a018b6a6598fd2fb61465332a694cc7eec916069dd000f26e066
font_02_sfnt_off00007a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2E 14292 bytes
SHA-256: d61215ea53dc0f59454da6b7aa15dbaa5dd8e9fd7670020b57f42db66761bc2e