MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Acca f6 malaysia textbook pdf'. The primary malicious URL identified is https://ttraff.com/pify?keyword=acca+f6+malaysia+textbook+pdf, which likely serves as a gateway to further malicious content. The presence of numerous Shopify links suggests an attempt to blend in with legitimate content while hosting the malicious redirector.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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.com/pify?keyword=acca+f6+malaysia+textbook+pdf
- http://lizum.aislingrichmond.com/uploads/1/3/1/6/131606349/lukosudeti.pdf
- http://files.thelearningcay.com/uploads/1/3/2/8/132814898/kajadofawivebo.pdf
- http://files.kahua-ranch.com/uploads/1/3/0/7/130775940/9540034.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70339383958.pdf
- https://cdn.shopify.com/s/files/1/0446/8441/1033/files/latex_beamer_einbinden.pdf
- https://cdn.shopify.com/s/files/1/0429/8647/1587/files/zurumawilogetajawomoga.pdf
- https://cdn.shopify.com/s/files/1/0439/7400/0798/files/34072530652.pdf
- https://cdn.shopify.com/s/files/1/0438/7468/0987/files/kuvojoxoguxisuroluxazo.pdf
- https://cdn.shopify.com/s/files/1/0432/1899/3320/files/mijesolodavozemusubalem.pdf
- https://cdn.shopify.com/s/files/1/0439/1026/7035/files/31961544179.pdf
- https://cdn.shopify.com/s/files/1/0431/6630/2376/files/romoloxerokimukunurotufeg.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9284441163.pdf?v=1594212706
- https://cdn.shopify.com/s/files/1/0437/7441/0901/files/21439747952.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000657a.bina05defe8e42f050bcc4ce92fb9af8c12dd6fd7d03831591448be444a7e5e975b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x657A | 5404 bytes |
font_01_sfnt_off000077e7.bin1c0f5ecb9ac19ec79ef5681b33542bb8024916c5733aa5edf0956fdc1455a0c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77E7 | 10096 bytes |
font_02_sfnt_off00009a6d.bin7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A6D | 4324 bytes |
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