Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1916d77d013c654…

MALICIOUS

PDF

110.9 KB Created: 2021-03-29 23:11:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3db2c4375f985ab22b30bb697b306d4 SHA-1: de9a1e0e352d86fb12a874582a6139add7e475be SHA-256: e1916d77d013c6546199a3e0c6070bef4796b95c54cfd4488e318f4147d5221f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including ML classification and ClamAV, indicating malicious intent. It contains a large number of external links, suggesting a link farm or redirection mechanism. While the document body is heavily obfuscated, the presence of external links and the overall detection suggest it's designed to lead users to malicious content, potentially a phishing site or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://fobinoxibenor.weebly.com/uploads/1/3/1/4/131437242/nopuzelosatofunu.pdf
    • https://degijidugaf.weebly.com/uploads/1/3/4/8/134886203/1566846.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://feedproxy.google.com/~r/wb/ENAH/~3/3IgsHNHpEfs/wb?keyword=2010%20can%20am%20spyder%20rt%20service%20manual
    • https://uploads.strikinglycdn.com/files/e02ff0ea-1c30-420c-9e4e-3ae94101af34/personajes_principales_de_la_metamorfosis_de_franz_kafka.pdf
    • https://uploads.strikinglycdn.com/files/8c20c643-331b-4b3b-be1d-5bc70b2935c0/kenmore_quiet_comfort_humidifier_not_working.pdf
    • https://uploads.strikinglycdn.com/files/406acfa8-6c97-4a7f-ab11-d6b38650f905/world_map_outline_printable.pdf
    • https://c183b790-cb34-49aa-848e-1a9f2b14dda3.filesusr.com/ugd/d8966e_1a1745a787094e8080b0d3b043358b59.pdf?index=true
    • https://uploads.strikinglycdn.com/files/decce2be-45ed-490b-8b7f-039033b09fc2/gowijuduviluzupagusuzup.pdf
    • https://uploads.strikinglycdn.com/files/a2ac7cae-3370-4435-bf5a-6605521fa102/is_30_minutes_on_stationary_bike_enough.pdf
    • https://uploads.strikinglycdn.com/files/6feb9717-2bd6-4f4a-9184-50a63b12c9f9/taco_bell_red_sauce_nutrition.pdf
    • https://uploads.strikinglycdn.com/files/aaa49e6a-251c-437e-99de-5a533ca72af6/how_to_print_2_sided_brother_printer.pdf
    • https://4328a374-8b5c-4134-9cef-e132ca5fc89d.filesusr.com/ugd/6732b1_9008ffee3420494782edbc24295254cd.pdf?index=true
    • https://uploads.strikinglycdn.com/files/c813ae67-57b8-446e-90b8-a8180f036bbf/kovebizexiravozixif.pdf
    • https://88749095-6fd7-453f-8e8a-15b48fe47dd1.filesusr.com/ugd/e4d7df_83e356fb31b34cbcaf427e5603628f87.pdf?index=true
    • https://e432c3f7-acc0-403b-bc7f-1b8c16782643.filesusr.com/ugd/6a4899_7d74518386994e86bbe33bf27ea8b559.pdf?index=true
    • https://uploads.strikinglycdn.com/files/01f6e4d0-1991-4d7f-a1e8-443a23a1628a/luxirataz.pdf
    • https://uploads.strikinglycdn.com/files/970c7908-e75f-4db5-bb94-de794c6f9b0a/soxagowisubid.pdf
    • https://0108a07e-94d6-443d-bfa7-575dd38852ad.filesusr.com/ugd/756a01_ee6ae7d3499d4275b1621a2934bcd2da.pdf?index=true
    • https://uploads.strikinglycdn.com/files/dde58837-d32f-4972-a192-277366217ab8/xavepuselujomow.pdf
    • https://uploads.strikinglycdn.com/files/33a1a336-7f5a-4030-adad-0e82db775b1b/76553413439.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017182.bin
3f4730ee6d14d32865af9075f40b176501783c3f4023d2194e2d575768692f71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17182 5612 bytes
font_01_sfnt_off00018490.bin
b1436e21d0f7b5774bd1a0055682e923eed188489e17a55e13cdc79cad373780		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18490 11736 bytes

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