PDF malware analysis — malicious · fb5d9665cd7b6cff

MALICIOUS

PDF

51.2 KB Created: 2020-08-05 04:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 020f90c693dac07d6b3990e72cf49742 SHA-1: 3f821d38be17449c5de6704a2db152173b825222 SHA-256: fb5d9665cd7b6cff39c9486dcc4791dd7128cd2ae62377af4c22f42051913812

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=brain+stem+death+criteria+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links also suggests a link farm or SEO poisoning tactic. The ML classifier strongly supports the malicious nature of this PDF.

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.ru/pify?keyword=brain+stem+death+criteria+pdf
- http://zorugal.yaaitsanartstudio.com/uploads/1/3/1/3/131398008/xuzan.pdf
- http://files.balanceyourwellnesstoday.com/uploads/1/3/1/6/131606815/1927226.pdf
- http://files.cmspso.com/uploads/1/3/2/6/132695329/3130898.pdf
- http://files.fit2day.ch/uploads/1/3/0/7/130739459/1209206.pdf
- http://files.gicentralcatholic.org/uploads/1/3/1/6/131637043/954c44.pdf
- https://cdn.shopify.com/s/files/1/0430/5335/1066/files/34051330896.pdf
- https://cdn.shopify.com/s/files/1/0431/3631/9639/files/percussion_ensemble.pdf
- https://cdn.shopify.com/s/files/1/0427/7754/2823/files/56972856008.pdf
- https://cdn.shopify.com/s/files/1/0434/5007/3240/files/android_version_9_easter_egg.pdf
- https://cdn.shopify.com/s/files/1/0430/8048/2967/files/navilirorerepuxem.pdf
- https://cdn.shopify.com/s/files/1/0429/9803/8679/files/vevuwed.pdf
- https://cdn.shopify.com/s/files/1/0431/3192/8740/files/71716973283.pdf
- https://cdn.shopify.com/s/files/1/0432/0441/1556/files/35900587254.pdf
- https://cdn.shopify.com/s/files/1/0429/6821/9799/files/nixozusuf.pdf
- https://cdn.shopify.com/s/files/1/0433/9915/1768/files/48602065572.pdf
- https://cdn.shopify.com/s/files/1/0440/9910/9016/files/finnegan_neonatal_abstinence_scoring_system.pdf
- https://cdn.shopify.com/s/files/1/0435/1708/3803/files/lekuxufu.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/
- https://cdn.shopify.com/s/files/1/0430/8048/2967/files/navilirorere

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008a95.bin` `50f629bd9392339a6be91294d12acf74cc889d9c4f8cdd9c2b4401f0576cf0ee`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A95	5412 bytes
`font_01_sfnt_off00009cd3.bin` `39b24dea22d2fcec69ed6233106bb42525134041192bc329c297b3ec94c477f6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9CD3	10160 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.