Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a30a2fb04f57a79…

MALICIOUS

PDF

50.3 KB Created: 2020-08-14 10:20:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 586be5f498900d00880434451e130f03 SHA-1: fc4ec5ddb2d44cc6c442c03f1668e3d10ab9666e SHA-256: 1a30a2fb04f57a79771ec167e376bf51eadb6649249600a4d564107d94cc2279
128 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 'https://ttraff.cc/pify?keyword=booking+calendar+pro%2528+jquery+plugin+free'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a 'SE_INVOICE_LURE' heuristic further suggests a social engineering tactic to entice clicks. While no scripts were extracted, the embedded malicious URL is the highest priority IOC.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=booking+calendar+pro%2528+jquery+plugin+free
    • http://files.pnwvixens.com/uploads/1/3/1/3/131379899/busizibaj-wazokivapapek-jufak-sidukijoporeti.pdf
    • http://files.heavencanbefound.com/uploads/1/3/1/3/131384018/tizalunovemili.pdf
    • http://fagilen.dcpolicefoundation.org/uploads/1/3/1/6/131607984/2517003.pdf
    • http://dixopazi.thebigquincebooknook.com/uploads/1/3/0/8/130814328/9489b21ff352b0.pdf
    • http://lupamowox.tripandsip.org/uploads/1/3/0/7/130776225/7701224.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/que_es_almacenamiento_de_alimentos.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/understanding_by_design_professional_development_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/nuzuburemu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2874/1285/files/section_19_1_bacteria.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/relilasokivamizorosub.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/broderbund_converter.pdf
    • https://cdn.shopify.com/s/files/1/0435/3851/4071/files/starcraft_2_counters.pdf
    • https://cdn.shopify.com/s/files/1/0438/2166/2365/files/10576376647.pdf
    • https://cdn.shopify.com/s/files/1/0437/8440/5153/files/vmware._vmem_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/61204672279.pdf
    • https://cdn.shopify.com/s/files/1/0435/0056/8736/files/sobexibese.pdf
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/niresh_high_sierra.pdf
    • https://cdn.shopify.com/s/files/1/0438/0341/0593/files/somugobi.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_off000076ea.bin
28ec571b968282a989a8facfbb5c9706c24cdd85a98c445e7236aa552460eb42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76EA 5440 bytes
font_01_sfnt_off0000897e.bin
1edc9edd1f50a5fad70392053d04c350afd221d6af203f1d7f3aa19db0194ab4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x897E 10480 bytes
font_02_sfnt_off0000ad64.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD64 4324 bytes

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