PDF malware analysis — malicious · 887ef0cc2ac99343

MALICIOUS

PDF

44.2 KB Created: 2020-09-20 00:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 022074ab795e502cc4b99f75bb2c2a5d SHA-1: 9e24d6b8e586cb3725fe66eda7c9f61728834fb9 SHA-256: 887ef0cc2ac9934376cdde6ec83d5238b26877e2bbd2279995b7e8e6b1c6b97c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary heuristic firing indicates that the PDF links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same malicious URL found in the heuristics, suggesting a deliberate attempt to drive traffic to malicious sites.

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/wb?keyword=the%20witcher%20parents%20guide%20game
- http://files.pasturedpoultryinfo.com/uploads/1/3/1/3/131383541/selogofu.pdf
- http://towaj.purebeautyphotography.com/uploads/1/3/1/3/131381679/nimokadozofinoruvil.pdf
- http://ruxile.oyezbookstore.com/uploads/1/3/1/8/131872225/xodosejet.pdf
- https://cdn.shopify.com/s/files/1/0433/8640/5029/files/training_implementation_plan_template.pdf
- https://cdn.shopify.com/s/files/1/0434/6026/4086/files/factsheet_13b_light_rigid_vehicles.pdf
- https://cdn.shopify.com/s/files/1/0434/4522/3581/files/saxagupoworotaxisol.pdf
- https://cdn.shopify.com/s/files/1/0432/4022/6984/files/batman_vs_superman_telugu_hd_movie.pdf
- https://cdn.shopify.com/s/files/1/0435/8009/6667/files/arioso_bach_piano_sheet_music_free.pdf
- https://25ad4643-93e8-447a-9c14-dc534ef6b0b9.filesusr.com/ugd/b48b60_7bb53193b4744eb4b84ac1016381e03c.pdf?index=true
- https://35028727-ad7b-4a82-ae49-3cb102a7ac97.filesusr.com/ugd/11baf9_935ae6a46560408ab8e254faa2f198b1.pdf?index=true
- https://16c3b29f-0cd6-4038-8389-276e4dbe9184.filesusr.com/ugd/eb6612_658276e4c9d54d94a0a50046a50a02cc.pdf?index=true
- https://21fee0ba-8ef5-439b-949c-47dd56685fc7.filesusr.com/ugd/63f22d_a5400a01a89c4530be2e7614680c725c.pdf?index=true
- https://5f3e6888-3f46-4a94-8855-266aaf66beff.filesusr.com/ugd/b54ff4_e58c78f185044fbb8f2d0af816a31dec.pdf?index=true
- https://cdn.shopify.com/s/files/1/0439/9159/7214/files/kufikasopidep.pdf
- https://cdn.shopify.com/s/files/1/0440/7872/7318/files/sheet_street_surgery_fax.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006ecc.bin` `b0199e6bad045498cc9543ede8e7ce92a6c7eb2f231c97b3eced66c28acda2d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6ECC	5496 bytes
`font_01_sfnt_off00008165.bin` `09604777757977d55c2ed505b9bafc2daae12497c83791c4cc52c1cf2d7ab35b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8165	10172 bytes

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