Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d79d5beb307b004…

MALICIOUS

PDF

43.7 KB Created: 2020-08-22 19:42:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e36bbf0cf142a658e2d7c93dc9e9da23 SHA-1: a6cd8b79f0b106db73c6491b4691c7b9871945d7 SHA-256: 4d79d5beb307b00403a468c68a275c65a94e35562508dc3c6b09bbb01fb2fce8
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link to 'ttraff.com' is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'free viber for samsung' and the malicious URL, suggesting a lure to download software. This pattern is consistent with business email compromise tactics aiming to redirect users to malicious sites for financial fraud or credential harvesting.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=free++viber+for+samsung In PDF document text
    • http://mesum.pennybrumbaugh.info/uploads/1/3/1/6/131607321/vuxasez.pdfIn PDF document text
    • http://fodarog.celltheon.com/uploads/1/3/2/8/132814930/6848498.pdfIn PDF document text
    • http://povidip.allbookedup.ca/uploads/1/3/1/3/131379833/masovifikibe.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/1/0461/1997/7124/files/79782800753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1294/0188/files/boney_m_christmas_carol_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3584/5017/files/61529119437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8857/5638/files/90869366548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0711/4391/files/16559055266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4448/6824/files/runojigeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2893/7880/files/fuentes_moviles_de_contaminacion_del_aire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1515/9458/files/78152969127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1327/5554/files/free_piano_sheet_music_ipad_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0277/6999/files/zinetijelojiwabola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/7688/6168/files/bjj_gi_size_guide.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 2

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_off00006da8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA8 5212 bytes
SHA-256: 0a41bf32a015541a84d8a74b39a2d49b625bddd1030e5bd4f4d3c8e4b1b93df8
font_01_sfnt_off00007f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5A 10296 bytes
SHA-256: 2f2661b6be8e13d71ae13bfa54bb4bafff9a00a289b3d29c3ad1662868573efc

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