PDF malware analysis — malicious · 27a11f621c51fc44

MALICIOUS

PDF

38.0 KB Created: 2020-08-07 02:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b3fe3f3978fedd46b6f48cbe3445d9f6 SHA-1: 357f92c5f5642be71af7f24993961f5048af3bb4 SHA-256: 27a11f621c51fc448bd2456df37868685422bbdf685fa45e4153d3ff43b7ec18

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high number of external links, many pointing to suspicious domains, and one critical heuristic firing indicates a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the malicious URL. This suggests the primary goal is to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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=transformadores+de+alta+frecuencia+pdf
- http://wenefo.mobile-mower-fix.co.uk/uploads/1/3/2/7/132710621/9470789.pdf
- http://jotovite.spokenwordministry.org/uploads/1/3/0/7/130740051/pegumub.pdf
- http://files.ciampateam.com/uploads/1/3/0/9/130969656/dabavavagotader.pdf
- http://xuvinuzu.rebeccabelldressage.com/uploads/1/3/1/6/131637136/3a88b8f6ff.pdf
- https://cdn.shopify.com/s/files/1/0427/4801/8855/files/machine_learning_applications.pdf
- https://cdn.shopify.com/s/files/1/0427/8734/0454/files/xumetajabijiwivivukediwo.pdf
- https://cdn.shopify.com/s/files/1/0433/6749/7880/files/fomupiwizikujuziloxogut.pdf
- https://cdn.shopify.com/s/files/1/0428/2882/4742/files/biogas_production_from_municipal_solid_waste.pdf
- https://cdn.shopify.com/s/files/1/0429/3437/0470/files/15217054300.pdf
- https://cdn.shopify.com/s/files/1/0437/4020/1109/files/poxazuwekepekarepoliguxe.pdf
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/bimod.pdf
- https://cdn.shopify.com/s/files/1/0434/8120/2854/files/fuxipanujej.pdf
- https://cdn.shopify.com/s/files/1/0429/5327/7603/files/la_vida_en_mexico_madame_calderon_dela_barca.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdf
- https://cdn.shopify.com/s/files/1/0435/1596/9688/files/45037320417.pdf
- https://cdn.shopify.com/s/files/1/0433/0032/3478/files/bticino_axolute_catalogo.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_off000047a9.bin` `be7f3c398765b372826825e0a37bdc3b38f1e88d6b10df44ff4a7bd9256ed4a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x47A9	5132 bytes
`font_01_sfnt_off000058fc.bin` `fb381d0e40d1ff8ad8ed018fec1c0886f74dc99e0a3130303638ee2372b4c517`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x58FC	10468 bytes
`font_02_sfnt_off00007b19.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B19	4324 bytes

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