PDF malware analysis — malicious · e16d1aed1ffd975b

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 01:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b7df710959db25c6e12e176c91ab9bcb SHA-1: a5dbc80f820c022adb89b9c5aa130bb6d22263bd SHA-256: e16d1aed1ffd975bb095aa23b830523c5acde7767a215d813a606dea6daf4716

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with a critical heuristic firing for a malicious redirector. The primary URL, https://ttraff.com/pify?keyword=singularity+is+near+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on various domains, suggesting a link farm or redirection scheme. The ML classifier also strongly flagged this PDF as malicious.

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=singularity+is+near+pdf
- http://files.rosecitytrombones.com/uploads/1/3/0/7/130775939/ritipoga.pdf
- http://xegeri.1small-step.com/uploads/1/3/2/6/132681763/9b1f442d.pdf
- http://files.reannhuber.com/uploads/1/3/1/3/131383467/jalelatuvorew.pdf
- http://bapitidat.hofnodnj.org/uploads/1/3/0/8/130874359/mobuwivuxotod-bojizixitake-magezop.pdf
- http://sevexo.candisyrup.com/uploads/1/3/0/7/130738964/boxisojiled_dadidifaxus_zedunug.pdf
- https://cdn.shopify.com/s/files/1/0427/4146/5244/files/toritevuwavewunugiwerezup.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30151397197.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/72039934221.pdf
- https://cdn.shopify.com/s/files/1/0434/5207/2086/files/colorado_snowpack_report.pdf
- https://cdn.shopify.com/s/files/1/0433/8139/1514/files/mamomofizubizi.pdf
- https://cdn.shopify.com/s/files/1/0431/3455/0177/files/vojozojifozijuxono.pdf
- https://cdn.shopify.com/s/files/1/0438/0485/2386/files/69018547516.pdf
- https://cdn.shopify.com/s/files/1/0429/0979/4463/files/97417759893.pdf
- https://cdn.shopify.com/s/files/1/0434/5122/0120/files/icao_annex_9_download.pdf
- https://cdn.shopify.com/s/files/1/0434/0491/8941/files/norwich_evening_sun_obituaries.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_off00005eed.bin` `3c6502e04658d985b37ed967139d4b1bb7136c1c8ff06868e6b64c17630b7d50`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EED	2960 bytes
`font_01_sfnt_off00006970.bin` `4d9854a50d1f06e422a4f2a639d43540403a91b9ea33531379842ff4a97ade14`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6970	5412 bytes
`font_02_sfnt_off00007be9.bin` `5d3d4f3be28ebfe8392ddda7bf7960ad7a7a4d6894d3f8219499684afc8b6187`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7BE9	10132 bytes

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