Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e43aa6d4b65a816…

MALICIOUS

PDF

42.1 KB Created: 2020-09-23 03:14:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d3baef58918636fc72c3821499a48bde SHA-1: e877cdea68a7d6d877647c70075040ad6236f3c2 SHA-256: 7e43aa6d4b65a816d60364a7ba4da74d2927c64580fb65b8ac4591b1e176af6a
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous links to external PDF files, a common tactic for SEO poisoning and distributing malicious content. One prominent link, 'https://ttraff.club/wix?keyword=how+to+get+lyft+receipt+for+expense+report', is identified as a malicious redirector. The document body's content and heuristic firings suggest a lure related to expense reports and urgency, aiming to trick users into clicking the malicious links. No scripts were extracted from this sample.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.club/wix?keyword=how+to+get+lyft+receipt+for+expense+report
    • http://files.ppesafetycompliance.com/uploads/1/3/0/9/130969656/diwamagido-ninupikakuke.pdf
    • http://fegod.saintmichaelscemetery.org/uploads/1/3/1/0/131070420/c9c5b428f41.pdf
    • http://movazab.snappycontentwriting.com/uploads/1/3/1/4/131453151/gufetawanapabi-wisuruzunezo-pexipebad.pdf
    • http://files.kwitoskiandassociates.com/uploads/1/3/2/8/132815388/fapuzinevixidasiv.pdf
    • http://files.pennyspetproject.com/uploads/1/3/0/7/130775520/jazotoxapomof.pdf
    • http://files.bodyshapingau.com.au/uploads/1/3/0/8/130815058/5eb03722.pdf
    • http://files.hireaecdirect.com/uploads/1/3/0/7/130739537/fadelawedelik.pdf
    • http://meret.disneylandiscreativity.com/uploads/1/3/1/4/131437792/9675975.pdf
    • http://dufapi.sozesty.com/uploads/1/3/0/7/130739706/d7385.pdf
    • http://files.misfitspolitics.com/uploads/1/3/2/6/132680784/532634.pdf
    • http://files.couragetogrowfarms.com/uploads/1/3/1/6/131606186/vasas.pdf
    • http://files.parishardaghmoydow.com/uploads/1/3/2/6/132681790/841c6d5d.pdf
    • http://nelij.nhtelephonemuseum.org/uploads/1/3/1/4/131407386/1466159.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/how_to_extend_centos_root_partition.pdf
    • https://cdn.shopify.com/s/files/1/0464/8776/5160/files/cabuya_costa_rica_surf_report.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_off00006788.bin
ae20fabc4be7b07b065a2e7bda7a620e9452e119892a091223af5e56a2e05ba8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6788 5196 bytes
font_01_sfnt_off00007973.bin
c33963e0cb66ee366a9c760113de6e6ea37c389e94927fda7060267e812363e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7973 9976 bytes

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