Malicious PDF — malware analysis report

Static analysis result for SHA-256 e236a43f7dda0afd…

MALICIOUS

PDF

48.4 KB Created: 2020-08-11 05:07:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c236f1000386ba34a4715342c365967d SHA-1: 2c925f48ab76ca62621704f68980bc671df9871c SHA-256: e236a43f7dda0afd419bc664402d79bb17d9b696f58bec99368b5805a79f06a5
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector at https://ttraff.com/pify?keyword=makalah+akuntansi+pemerintahan+daerah+pdf. Another critical heuristic identified a PDF link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. 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.com/pify?keyword=makalah+akuntansi+pemerintahan+daerah+pdf
    • http://xubosu.rekwiredcosmeticsllc.com/uploads/1/3/1/4/131405927/1481006.pdf
    • http://files.harelluz.com/uploads/1/3/2/7/132741241/susorisado.pdf
    • http://files.paperchasewholesale.com/uploads/1/3/1/4/131407918/9ce7143c82da205.pdf
    • http://files.sidecloset.net/uploads/1/3/0/7/130776327/7e454d99f.pdf
    • https://cdn.shopify.com/s/files/1/0435/8314/4104/files/bezivubufote.pdf
    • https://cdn.shopify.com/s/files/1/0432/3016/7202/files/kubokimewopanefodilotip.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/bsc_computer_science_subjects_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/84032160328.pdf
    • https://cdn.shopify.com/s/files/1/0432/3508/2402/files/bedulikorefanosoluzuzene.pdf
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/stk_power_amp.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/81131719693.pdf
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/amtrak_surfliner_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/lusepunijamivuviveta.pdf
    • https://cdn.shopify.com/s/files/1/0434/4047/2229/files/kupor.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.

FilenameKindSourceSize
font_00_sfnt_off000080d2.bin
26eb1bde77ec4874a64896d0187765ebe813f49d017c9b3b4cc4844df51c79fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80D2 5352 bytes
font_01_sfnt_off000092da.bin
a5d651a329d265e078a492cc1bd540792bf6bf9f444d936869e1b0162fc70f5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92DA 9924 bytes

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