PDF malware analysis — malicious · ff1a91603fc7075e

MALICIOUS

PDF

38.3 KB Created: 2020-09-16 21:53:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a99e87492f5d6c000fa0c414f0ebbb68 SHA-1: d166278f75b594419de51d8db4b7342e1fa8dec5 SHA-256: ff1a91603fc7075ef01a4c7590c64804b74bdff8b807053f2b965e5973b94618

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links to external websites, including a known malicious redirector. The document body, though heavily obfuscated, contains text related to automotive service and repair, suggesting a lure. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating an attempt to drive traffic to malicious infrastructure.

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.club/wix?keyword=automotive+service+inspection+maintenance+repair+pdf
- http://zitav.reaysplace.com.au/uploads/1/3/0/7/130738711/4060173.pdf
- http://teduga.b-dogdesign.nl/uploads/1/3/1/4/131406535/6897724.pdf
- http://files.pdcreccenter.com/uploads/1/3/1/3/131384249/ca05dc52b3e3b1.pdf
- https://cdn.shopify.com/s/files/1/0435/5912/5153/files/sokalevudapovojerumake.pdf
- https://cdn.shopify.com/s/files/1/0434/7445/2632/files/tidutu.pdf
- https://cdn.shopify.com/s/files/1/0434/1907/4716/files/bixutupojagomeped.pdf
- https://cdn.shopify.com/s/files/1/0433/5032/7451/files/paper.io_2_unblocked_games.pdf
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/certified_ethical_hacker_v10.pdf
- https://cdn.shopify.com/s/files/1/0432/3885/0724/files/25834311505.pdf
- https://cdn.shopify.com/s/files/1/0430/7573/1607/files/dungeon_maker_challenge_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/5296/5789/files/antenatal_care_guidelines_fogsi.pdf
- https://ce989753-a5b0-4ed7-a2e3-165f8491e4f0.filesusr.com/ugd/e50c99_429efe9b232047018d6eb52f328e8580.pdf?index=true
- https://18a740b7-cd94-4de1-8fdd-98c26112fb5f.filesusr.com/ugd/debdc1_03349ab7fd224615af20899c0f39696e.pdf?index=true
- https://a9179f4f-554c-4ff9-9444-e7f426647c84.filesusr.com/ugd/2d797c_0dfc9f26ddc3432aa5124171789616dd.pdf?index=true
- https://c4fd2dbc-d125-42af-9b94-ae9ba9365d8f.filesusr.com/ugd/c83fdb_702b0d098d174bdc92c0ce7a53811e5e.pdf?index=true
- 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_off000057ee.bin` `0da7bba939a79206f8712b24f64223541a988c862f5fee279eb9385bc9ee69ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x57EE	5316 bytes
`font_01_sfnt_off000069f5.bin` `d7df3ad32e1366fb38cfcc7cc4d1578f08b279a9bdbe0f678ddb9756f94b8e3d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69F5	9896 bytes

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