Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebcad39c125a3805…

MALICIOUS

PDF

43.9 KB Created: 2020-08-17 13:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12250a786f0d19d3c152d5277327ed15 SHA-1: 921a25de7ac25006ed1aa3a2133abe67827b84bb SHA-256: ebcad39c125a38052cb514c2ed84f1c6d9a828edb5d4d85a9311a14828201f2c
128 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to external resources, and one specific link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'earring card holder template' and the malicious URL, suggesting a lure. The presence of numerous links, including those hosted on Shopify, indicates a link farm strategy, likely to obscure the final malicious destination. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=earring+card+holder+template
    • http://bulikizo.grandmonadnockyouthchoirs.org/uploads/1/3/0/7/130740609/2413867.pdf
    • http://files.flavaevolution.com/uploads/1/3/1/6/131606640/9590223.pdf
    • http://pirep.hollowaygaels.org/uploads/1/3/1/3/131379678/diromabibufi-debaz-mivupa.pdf
    • http://files.redmoonbronxsoapsandteas.com/uploads/1/3/0/9/130970022/0c57c5a6ef9afd5.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/concerto_for_2_violins_in_d_minor_bwv_1043.pdf
    • https://cdn.shopify.com/s/files/1/0438/4001/2450/files/70657215272.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/quant_job_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/7850/7934/files/bizomubujaxegivevazuban.pdf
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/12333214226.pdf
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/94689925120.pdf
    • https://cdn.shopify.com/s/files/1/0448/2924/5600/files/wild_magic_sorcerer_revised.pdf
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/junoxatadatedezewaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/wabuxoginajuza.pdf
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/brivis_ducted_heating_user_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/monheims_local_anesthesia.pdf
    • https://cdn.shopify.com/s/files/1/0433/1801/8216/files/nakogezadegelamo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.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_off00006e05.bin
40f0a415787087748bcf24ad56bb5d0448deaf0da8fc0994660516974ebd1092
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E05 5264 bytes
font_01_sfnt_off00007fba.bin
fc0172026cc9010b62c410cf3ee2fe067b22b850936ce04dc3102afb072e8aca
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBA 10120 bytes