MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, and another flagged a 'PDF SEO Link Farm' with numerous PDF links. The document body, though heavily obfuscated, contains text related to 'understanding human behaviour psychology pdf' and includes the malicious redirector URL, suggesting a lure to a malicious site. The primary IOC is the malicious redirector URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=understanding+human+behaviour+psychology+pdf In PDF document text
- http://files.op1620.com/uploads/1/3/0/7/130776714/8885128.pdfIn PDF document text
- http://files.aledobandboosters.org/uploads/1/3/2/6/132681946/8067431.pdfIn PDF document text
- http://files.holicarellc.com/uploads/1/3/2/7/132740743/neviwifena.pdfIn PDF document text
- http://kibebix.santarosapool.com/uploads/1/3/1/6/131606727/4d38da26d0685.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/1/0428/3580/4319/files/milikefasozulinusogadiwak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2363/8426/files/97977517640.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4052/9816/files/pulobodukadejutokumasibe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4899/2930/files/natenebafapurezofifam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1610/0776/files/zabataj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6482/8838/files/where_are_discord_servers_hosted.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9280/3744/files/livogomana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9344/9122/files/55683499068.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6330/3575/files/52375599100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/4994/7029/files/aspiration_pneumonia_dog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6454/0840/files/ballroom_blitz_tab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0425/4615/files/89373555478.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2883/2675/files/fuferomemakidido.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0113/3731/files/depuriwi.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:
aledobandboosters.org
6 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ad5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD5E | 5744 bytes |
SHA-256: 3a059eba51e13bae6f0c255b7d9ff3f8c30479dac38e8e9afcdb65eaba07d966 |
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font_01_sfnt_off0000c0bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0BC | 10516 bytes |
SHA-256: 08501afbcac210cf8d63c75605952124c10da74647c1d4d470888079f687127c |
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font_02_sfnt_off0000e468.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE468 | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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