Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d7ef7e9754435f0…

MALICIOUS

PDF

42.1 KB Created: 2020-08-18 20:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eca7926fe0a9596bbf814680e7b388e8 SHA-1: dda7e63c049180ad27f919f58c51be64a9e21eff SHA-256: 0d7ef7e9754435f03e98ec3ea68c4c69b43050409c376e66ce1fc8891a745168
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for redirection to known malicious infrastructure via 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Whatsapp app' and a URL that mirrors the malicious redirector. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to lead users to harmful 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.
  • 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=whatsapp+app++2019+new+version+apk In PDF document text
    • http://files.touchedbynangel.com/uploads/1/3/1/3/131397996/3838847.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/1/0437/7791/7090/files/google_maps_slow_android_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4071/7462/files/40806120748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9177/2063/files/seluragogitifulafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8377/5643/files/xigaketabatorake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3647/8361/files/17975321682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7554/3964/files/tarexozenun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/gupudogifus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5507/7790/files/kimorigiloxolelewefuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0770/3201/files/assassin_s_creed_3_walkthrough_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/bright_angel_trail_guided_hike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8543/8884/files/heroes_of_hammerwatch_sorcerer_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4202/9215/files/schneider_nsx_mccb_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/84250838334.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 3

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_off000063d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D8 5588 bytes
SHA-256: 7056f6818c2127ae4e728596e9d50087feec81e40c489fe54e2f9b096d85a505
font_01_sfnt_off000076eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EB 10592 bytes
SHA-256: 69613bef971f80e90d5974836a15e4a9fdd80d8d4e6b7b77557d7739bdf07eae

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