Malicious PDF — malware analysis report

Static analysis result for SHA-256 088a0066d00ceee0…

MALICIOUS

PDF

61.4 KB Created: 2020-08-10 15:16:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7dfc572f3a749f3a52e43ec048580de SHA-1: cb8e5d46ba378b115548ce17d60455d3c3342938 SHA-256: 088a0066d00ceee0933999c422bcb0b2bc5192f408ba272931b3cad173e2df42
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO manipulation tactic. The primary URL, 'https://ttraff.com/pify?keyword=bsc+2nd+year+botany+books+pdf', is identified as a malicious redirector, indicating an attempt to lead the user to harmful content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ttraff.com/pify?keyword=bsc+2nd+year+botany+books+pdf
    • http://files.pacificphysicaltherapy.com/uploads/1/3/1/3/131383318/ed741c9287148.pdf
    • http://files.releasology.com/uploads/1/3/1/8/131871614/gukewusujabatu.pdf
    • http://jixupera.ilovewatervalley.com/uploads/1/3/0/7/130739267/nekemodozix-pudop-valuduma.pdf
    • http://xirelope.lewesunleashed.org/uploads/1/3/0/8/130815009/dc1f48f.pdf
    • http://files.nhappyandbeautiful.store/uploads/1/3/0/7/130740249/mototoxatewa-fagekivekaxada-xufamomu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/free_balance_sheet_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/7078/2614/files/ct_v_ghp_file_online.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0626/files/satsuma_street.pdf
    • https://cdn.shopify.com/s/files/1/0429/1418/5372/files/10851110459.pdf
    • https://cdn.shopify.com/s/files/1/0439/1917/9931/files/86593391838.pdf
    • https://cdn.shopify.com/s/files/1/0428/1093/3414/files/27411687233.pdf
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/bilangan_komposit.pdf
    • https://cdn.shopify.com/s/files/1/0438/0357/4434/files/fundamentals_of_agricultural_economics.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/losezumumi.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/50892395915.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/97885996650.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/8502453416.pdf
    • https://cdn.shopify.com/s/files/1/0436/1024/3230/files/reservoir_induced_seismicity.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008163.bin
3ecc9a86f8680801257ae5b44664fa9a0c09f45615e150baa609e08176867ede		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8163 5604 bytes
font_01_sfnt_off00009484.bin
3ec5eaebde275098412d8dff0e1045b52b4c0e5a23abac5807418a6329e69f43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9484 3204 bytes
font_02_sfnt_off0000a174.bin
67609d49d92311f73215d168ab3a97a3cd50f94f142e680fbabde36e1f73e976		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA174 2576 bytes
font_03_sfnt_off0000ac6a.bin
8f6933beb6bba60ae8f2f1dfc97fb3a02eade44a4fae2e21161a091de58d96a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC6A 10764 bytes
font_04_sfnt_off0000d125.bin
ecd876e6429097faff5d4504f98b547fe1057ccfb3ea937534e0a12b710a7105		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD125 16260 bytes

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