Malicious PDF — malware analysis report

Static analysis result for SHA-256 622d707ac5808c89…

MALICIOUS

PDF

37.8 KB Created: 2020-08-24 12:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c7b77bad3f19b9c9739c9257627dcf9 SHA-1: b0ac844830a0535db037b23e520bdab0f1e31e3c SHA-256: 622d707ac5808c896008b657300331e9b854d9394c9b1e846d92b0e9ed3bec12
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, many of which point to a redirector service that ultimately leads to malicious infrastructure. The document body, though heavily obfuscated, contains the URL "https://ttraff.ru/pify?keyword=haunted+house+pictures", which is identified as a malicious redirector. This suggests the document is designed to trick users into visiting malicious websites, likely for phishing or malware distribution.

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=haunted+house+pictures In PDF document text
    • http://files.thediplip.com/uploads/1/3/0/7/130739343/jigobafise-vuretedu.pdfIn PDF document text
    • http://files.allysonboate.com/uploads/1/3/0/9/130969740/zejewetile_xofibabawatap_lunidolem.pdfIn PDF document text
    • http://files.lovelearnshare.com/uploads/1/3/0/7/130775942/4790972.pdfIn PDF document text
    • http://movubim.creativeedgestudio.co.nz/uploads/1/3/0/9/130969130/pifobigazofivo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0470/7491/files/bafg_bayern_formblatt_ausdrucken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0426/2561/files/kixodifikasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0673/files/57005704975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7732/1379/files/xozomamowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3694/9152/files/5787050264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5054/7870/files/9080649011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/wubikagokapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/shopping_site_website_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/woronutisoruluwumiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6533/5190/files/bwv_543.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: corinne-a-michels-phd.net 4 samples

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A5A 4972 bytes
SHA-256: e40db72d7ddf308e54eb27826764aacaef99562b3e1f8ae7caec525f8d3e29c5
font_01_sfnt_off00005b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2A 9712 bytes
SHA-256: 42cb0042f1c4966ab828981bcacb37b7518ba430faa11a8eae87e3e7d9aa08fa
font_02_sfnt_off00007c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5B 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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