Malicious PDF — malware analysis report

Static analysis result for SHA-256 add9893dcc3ee8cc…

MALICIOUS

PDF

38.5 KB Created: 2020-08-20 03:33:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df5f559cfbacc9b8dc555e52933a9c0e SHA-1: 1168b8a8dc3d3b64c27562de1ac7280d3c0f0658 SHA-256: add9893dcc3ee8cc53881839c9175c300353a92c4c9a64848c160f3dd8bb9cea
234 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains this URL and also references a large number of other PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The heuristic 'SE_MFA_LURE' indicates the document is designed to trick users into providing sensitive information, such as MFA codes, consistent with credential phishing.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=whatsapp+plus+terbaru+apkpure In PDF document text
    • http://files.westonsupermaretrainshow.com/uploads/1/3/1/3/131380236/baxoxiragak_gibexolojipu.pdfIn PDF document text
    • http://files.localumass.com/uploads/1/3/0/7/130739060/lobopofosigek_jevajofe_sirovowewuban.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/1/0429/5675/1002/files/advantages_and_disadvantages_of_social_grants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/pan_head_screw_size_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jivanup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/58403142256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1576/5159/files/90344410828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30899714004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8061/7885/files/90684901110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8755/9833/files/nopajizasidiluxugun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3319/7718/files/kadulotexarokeloleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3319/8745/files/90298407763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5661/7877/files/40462837718.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
🗂 Part of campaign: andieileenphotography.com 3 samples

Related samples 4

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_off00005a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A4D 5124 bytes
SHA-256: 522dd912c793960a8c245ca4f5fbb59b2f06658c3021d3b38d9b428fc27a8998
font_01_sfnt_off00006bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBB 9960 bytes
SHA-256: d8389efc64a87dc12ede66f0b01fa5f95cc241434e9777e6d07eb8580f4f2b37

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