Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff847967b00b113…

MALICIOUS

PDF

42.3 KB Created: 2020-08-21 05:50:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c8f5c1cf35d3f6ae58cf215847534c1 SHA-1: 5e849da103424d5f6bc52926c15ae729ced499fb SHA-256: aff847967b00b11356ec733b694a06498749b99ff382cd09ddf4b3dfce42fb8b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of embedded links, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. One of the primary links points to `ttraff.ru`, a known malicious redirector. The document body contains garbled text along with the URL `https://ttraff.ru/pify?keyword=latest+south+african+hip+hop+music`, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.ru/pify?keyword=latest+south+african+hip+hop+music In PDF document text
    • http://files.gnostictarotkabbalah.com/uploads/1/3/1/3/131384495/libajanaxipix_lizogoxokod.pdfIn PDF document text
    • http://gejajeda.mjankauski.com/uploads/1/3/1/4/131438437/6525719.pdfIn PDF document text
    • http://files.mak-jewelry.com/uploads/1/3/0/8/130814411/gulemuk_jepokosupezorel_jejisakidog_natavusaso.pdfIn PDF document text
    • http://files.alessertraveledroad.com/uploads/1/3/1/4/131437246/523e05f35a.pdfIn PDF document text
    • http://vobub.newmexicolegalhelp.com/uploads/1/3/1/4/131438729/79f568b.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/1/0429/0763/1783/files/23175281842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/attendance_allowance_app_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0707/4723/files/97536232364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5608/7708/files/kotapudazom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9450/6661/files/gta_v_mod_menu_ps3_usb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/46834978736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/27108383625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5838/0446/files/jukuro.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_off00006738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6738 5164 bytes
SHA-256: 8a6676d92d98a24d7041040048d2e5984b4bddf521bbcacacd0ec8e794a71291
font_01_sfnt_off000078a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78A2 10564 bytes
SHA-256: 98ffae7fdf79ce65257a32a025040137f66d73ef0c5797dfde9d381f849006cf

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