Malicious PDF — malware analysis report

Static analysis result for SHA-256 8de6fe4854f7c298…

MALICIOUS

PDF

45.1 KB Created: 2020-08-14 06:38:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb709c8ca4dcb6f561c33a2bfc4ef06e SHA-1: 44279ddc420360e5fc7f32734fc729371d40aba5 SHA-256: 8de6fe4854f7c29804ff02556391924b94cd0aa53e86684f55330271f7ef0ce1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, including a known malicious redirector at 'https://ttraff.cc/pify?keyword=emesis+verb+form'. This suggests the document's primary purpose is to redirect users to malicious sites. The ML classifier also strongly indicated maliciousness.

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=emesis+verb+form
    • http://files.hkmusichall.com/uploads/1/3/1/3/131398052/piwixazeri.pdf
    • http://toluko.andreanoandlyons.com/uploads/1/3/2/6/132695465/wugudotasi.pdf
    • http://files.beavsworld.com/uploads/1/3/0/9/130969937/zotuzuponavi_dowemarase_jetavovubodadu.pdf
    • http://files.dongoble.com/uploads/1/3/1/8/131872107/suduvego.pdf
    • https://cdn.shopify.com/s/files/1/0434/0131/4456/files/how_to_adjust_car_headlights.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4899/files/mathematics_aptitude_test_questions_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/1979/5623/files/48666790768.pdf
    • https://cdn.shopify.com/s/files/1/0434/8336/5528/files/asynchronous_and_synchronous_communication.pdf
    • https://cdn.shopify.com/s/files/1/0435/0879/3510/files/suvipejefowujenobijemotej.pdf
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/vitabubejevulegonilus.pdf
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/korejofaginokosag.pdf
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/97872846936.pdf
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/84617677312.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/35620029732.pdf
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/english_consonant_chart.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.

FilenameKindSourceSize
font_00_sfnt_off0000582d.bin
6522f7d64171ec42c9daea474b585736cd77d231c98d0a14f2608d22ca5cce63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x582D 4828 bytes
font_01_sfnt_off0000688b.bin
0874faa01ebc52efa3d2d4754f1b7753f94c7fbf17bdbbc4261cea18acf30210		 pdf-font-stream PDF embedded font (sfnt) at offset 0x688B 12552 bytes
font_02_sfnt_off00009188.bin
d26390a1b495fc4844790f49287189703365677ecb3af67b7cca25d146cf5ea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9188 16060 bytes

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