PDF malware analysis — malicious · 9f4cfefa6918cd8a

MALICIOUS

PDF

40.4 KB Created: 2020-08-20 06:47:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b9f3b6eac1494427942028767bdff479 SHA-1: 06ac10d656024c5a9450f3c631f78af1617bba9c SHA-256: 9f4cfefa6918cd8a433ff1d6e77a2c0e57fe942fde910dc2c57e4fae1003343b

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a malicious redirector link to 'ttraff.com', suggesting a phishing or malware distribution attempt. Another heuristic noted a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO manipulation or link farms designed to drive traffic to potentially malicious destinations. No scripts were extracted, but the extensive link farm and the identified malicious redirector strongly indicate a malicious intent to lure users to external resources.

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.com/pify?keyword=smooth+4+gimbal+manual
- http://files.thesoundspace.net/uploads/1/3/0/8/130874543/5495136.pdf
- http://fekaxilu.mccoymultimediallc.com/uploads/1/3/0/7/130739573/vadabofew_sidanase.pdf
- http://files.drkayecase.com/uploads/1/3/2/7/132740905/9790658.pdf
- https://cdn.shopify.com/s/files/1/0433/6245/1611/files/2014_jeep_patriot_manual.pdf
- https://cdn.shopify.com/s/files/1/0429/5848/7703/files/zofuro.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gevuruliwineda.pdf
- https://cdn.shopify.com/s/files/1/0431/6718/7108/files/multiplication_word_problems_worksheets_3rd_grade.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18396470220.pdf
- https://cdn.shopify.com/s/files/1/0435/0178/1156/files/sinenaduw.pdf
- https://cdn.shopify.com/s/files/1/0431/1616/7328/files/94898788797.pdf
- https://cdn.shopify.com/s/files/1/0436/8557/6857/files/cancionero_catolico_partituras.pdf
- https://cdn.shopify.com/s/files/1/0434/7317/4680/files/xibotaxevo.pdf
- https://cdn.shopify.com/s/files/1/0438/2441/4882/files/kudafik.pdf
- https://cdn.shopify.com/s/files/1/0432/9360/6046/files/86314198031.pdf
- https://cdn.shopify.com/s/files/1/0439/4539/4331/files/takipiwupovat.pdf
- https://cdn.shopify.com/s/files/1/0430/6747/4087/files/kavinudirejobewamamutux.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_off00006138.bin` `385de3d98fac7e53b1e8c17d794f88278d73be49d3c6ed487e64c3a2828dc024`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6138	5156 bytes
`font_01_sfnt_off000072a6.bin` `f56191f4f8c3d4ed4b7ac412760360f94cc6792deec712d1020852c427511b4e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72A6	10068 bytes

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