Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2d51b2308a0e70…

MALICIOUS

PDF

41.5 KB Created: 2020-08-12 11:37:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa49a2df696263a0f5da494a21f63c04 SHA-1: 588d8cf0798d340070d0629c068be6121b89e496 SHA-256: 1d2d51b2308a0e7073f906423a4ac6d2f714316026c3116e38fe86044f9e7bc9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external links, suggesting a link farm. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=alleluia+jubilate+deo+pdf', is identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and embedded URLs, consistent with a lure to external malicious content.

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=alleluia+jubilate+deo+pdf In PDF document text
    • http://dokibamis.royaltyriseproductions.com/uploads/1/3/2/6/132681501/kodirotonoga.pdfIn PDF document text
    • http://misorim.ahshoops.com/uploads/1/3/0/7/130738884/4857799.pdfIn PDF document text
    • http://files.katydunlapyoga.com/uploads/1/3/0/9/130968920/jigadexizadudaw_baniretepire_menedezerig_wejajoje.pdfIn PDF document text
    • http://files.nalalumni.org/uploads/1/3/0/7/130740458/ramuneb-pakaleti-jivezala-vifazomi.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/1/0431/5283/4711/files/24644041905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8802/files/400099714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4102/1334/files/repunukigumakawok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3418/5628/files/nesolironibap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5142/files/jozemuwimufalonesol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7270/0057/files/calendar_2020_uae_with_holidays.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2661/9288/files/watchmen_comic_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7266/files/xobopejewaxig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3014/9270/files/application_of_microbial_biotechnology_in_agriculture.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 6

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_off0000621e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621E 4964 bytes
SHA-256: 97f8a0bc15ff0b73dc23a91d816842d2b3c94dcf36dbf84c0b6a097061481114
font_01_sfnt_off00007315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7315 11328 bytes
SHA-256: 9968f36f3843afce7deadb82011102e38cb3eff916825d1739ea2d178db99405

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