PDF malware analysis — malicious · b7d261701f6eea4f

MALICIOUS

PDF

45.2 KB Created: 2020-08-23 14:29:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9ccc79ead18f58cff5fc3e99ce8686eb SHA-1: d949967ff6414ea99c6d01cbaeed79aa06161cf2 SHA-256: b7d261701f6eea4f314b1636c813bb0c41e2eee4f17b9f35ddbd6d1d6b3aec48

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=tagalog+catholic+bible'. This URL is embedded within the document body, disguised as a Bible reference, to entice users to click. The PDF also exhibits characteristics of a link farm, with numerous external links, further supporting a malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

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=tagalog+catholic+bible
- http://supikorap.thetimebetweenis.org/uploads/1/3/1/4/131406436/82bd9b78.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdf
- https://cdn.shopify.com/s/files/1/0434/3742/4807/files/77485657844.pdf
- https://cdn.shopify.com/s/files/1/0434/0210/0886/files/58748994534.pdf
- https://cdn.shopify.com/s/files/1/0462/4849/3205/files/22121286541.pdf
- https://cdn.shopify.com/s/files/1/0434/3287/0037/files/philips_tv_remote_codes.pdf
- https://cdn.shopify.com/s/files/1/0431/2750/5047/files/mozilla_pc_browser_free.pdf
- https://cdn.shopify.com/s/files/1/0437/3587/5745/files/65607372828.pdf
- https://cdn.shopify.com/s/files/1/0433/0517/3147/files/97593561779.pdf
- https://cdn.shopify.com/s/files/1/0432/1034/2564/files/plant_ecology_notes.pdf
- https://cdn.shopify.com/s/files/1/0433/4610/0374/files/socioeconomic_status_and_health.pdf
- https://cdn.shopify.com/s/files/1/0434/4843/4844/files/can_you_use_dashes_in_formal_writing.pdf
- https://cdn.shopify.com/s/files/1/0462/2480/1946/files/espina_bifida_definicion.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005f5c.bin` `9c43965678169b539f3a01043c3837eba336ef92d06eede9e540690df4b96c86`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F5C	4556 bytes
`font_01_sfnt_off00006edb.bin` `51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6EDB	1800 bytes
`font_02_sfnt_off00007769.bin` `00a6966d8af216d2dcd84a46b00ca073d33257197c25e4b1fc83876a66911e81`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7769	10128 bytes
`font_03_sfnt_off000099f4.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99F4	4324 bytes

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