MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a translation service, which is likely a lure. The ML classifier also strongly indicated maliciousness. The primary IOC is the malicious redirector URL, which is used to deliver the next stage of the attack.
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=d%25E1%25BB%258Bch+ti%25E1%25BA%25BFng+anh+sang+ti%25E1%25BA%25BFng+vi%25E1%25BB%2587t+t%25E1%25BB%25AB+file+pdf
- http://kufevur.truncale.net/uploads/1/3/0/8/130874064/2759669.pdf
- http://files.noeltanderson.com/uploads/1/3/2/6/132681150/8a9d7cac69.pdf
- http://files.evansalumni.net/uploads/1/3/1/8/131872104/tebivofobizi_xodasab_nojolap.pdf
- https://cdn.shopify.com/s/files/1/0433/2702/9400/files/75969588723.pdf
- https://cdn.shopify.com/s/files/1/0429/1434/9219/files/sapply_in_r.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdf
- https://cdn.shopify.com/s/files/1/0428/3075/8054/files/82011342250.pdf
- https://cdn.shopify.com/s/files/1/0430/0737/7567/files/tatojotejudevevoz.pdf
- https://cdn.shopify.com/s/files/1/0431/3251/8549/files/14158912168.pdf
- https://cdn.shopify.com/s/files/1/0437/2915/8295/files/tulex.pdf
- https://cdn.shopify.com/s/files/1/0436/4537/0518/files/pajadozosubugasarikakob.pdf
- https://cdn.shopify.com/s/files/1/0430/9726/0192/files/vatuxitodox.pdf
- https://cdn.shopify.com/s/files/1/0431/4395/4594/files/33040454981.pdf
- https://cdn.shopify.com/s/files/1/0429/3056/9382/files/disat.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_off00005821.binbea4ebc862dbc3fdb7da6f117e13aba76b088fc320fa51da327aa7c83a23638e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5821 | 5940 bytes |
font_01_sfnt_off00006bb8.binae549832141ae990fbb380401f2f2994be5131b77da9f96a8dbb7a4e2693d80f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6BB8 | 21624 bytes |
font_02_sfnt_off00009a33.bin532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A33 | 16204 bytes |
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