PDF malware analysis — malicious · dff3a16d3deaf5b1

MALICIOUS

PDF

37.1 KB Created: 2020-08-21 01:41:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b393cf5a6281f7ab13ab1ef362d252bb SHA-1: 488182741993b832ec6c41c4496a802bc886b4b9 SHA-256: dff3a16d3deaf5b1899fbdcdb2cba85c41a7abdf47975c642cf838eafda075db

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

This PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=bernina+1008+sewing+machine+service+manual'. The document body, though heavily obfuscated, contains text related to a 'Bernina 1008 sewing machine service manual', suggesting a lure to disguise the malicious intent. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning tactic to distribute malicious content.

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.cc/pify?keyword=bernina+1008+sewing+machine+service+manual
- http://files.serviceprograms.org/uploads/1/3/0/7/130739032/599184.pdf
- http://files.shermanfp.com/uploads/1/3/0/8/130874615/zewadowepakejafe.pdf
- https://cdn.shopify.com/s/files/1/0429/2752/1948/files/bepekomagevelevunup.pdf
- https://cdn.shopify.com/s/files/1/0431/0571/4338/files/nikejutaduzowi.pdf
- https://cdn.shopify.com/s/files/1/0431/4615/0039/files/90081245778.pdf
- https://cdn.shopify.com/s/files/1/0429/4872/2851/files/67751557271.pdf
- https://cdn.shopify.com/s/files/1/0435/2363/7402/files/momipexifefa.pdf
- https://cdn.shopify.com/s/files/1/0434/9375/2997/files/computer_parts_information_in_marathi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/femepotufitaxaturu.pdf
- https://cdn.shopify.com/s/files/1/0437/2178/5498/files/addition_reaction_of_alkynes.pdf
- https://cdn.shopify.com/s/files/1/0432/4599/4146/files/90s_anime_movies.pdf
- https://cdn.shopify.com/s/files/1/0435/7790/1214/files/70910799613.pdf
- https://cdn.shopify.com/s/files/1/0434/3591/7464/files/88041332746.pdf
- https://cdn.shopify.com/s/files/1/0430/0754/1401/files/guxexetumadizebawamoj.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_off0000452d.bin` `fc242c4baead81c9f81c0e0b4d477b38fda8522d5936f098873e6ab637095cd4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x452D	5496 bytes
`font_01_sfnt_off000057b7.bin` `da6bd75d810fa677b137c3bbf68f792c904fdf34b6bb8edff296e165d01a7fe0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x57B7	9864 bytes
`font_02_sfnt_off00007944.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7944	4324 bytes

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