Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa60fcb7100882f3…

MALICIOUS

PDF

45.5 KB Created: 2020-08-23 00:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59392a03adbc7b0b201b0b2acbadb6a8 SHA-1: a69ae2d960b4587ff13f839f93649741182394f8 SHA-256: aa60fcb7100882f330faa928a1e8a5ad112734b2c345271bced462168dbae915
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a significant portion of which point to known malicious redirector infrastructure or unknown domains. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a deliberate attempt to redirect the user. The presence of a link farm heuristic further supports the malicious intent of distributing links to potentially harmful content.

Heuristics 3

  • 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.
  • 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=mac+buying+guide+mac+mini
    • http://xuximilu.swegas.com/uploads/1/3/1/4/131407995/domuvetudomiwakuw.pdf
    • http://zomibapug.fayettelawyer.com/uploads/1/3/2/6/132696280/bb6dc219.pdf
    • http://files.antoniominino.com/uploads/1/3/1/3/131378838/gemudabikob-wopadagukekiz-bojimimawatizo-guzoton.pdf
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/investment_agreement_contract.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/6842842392.pdf
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/tugizaga.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/wacom_cintiq_pro_16_manual.pdf
    • https://cdn.shopify.com/s/files/1/0456/8852/0863/files/da_form_1156_army_casualty_feeder_card.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/4335407688.pdf
    • https://cdn.shopify.com/s/files/1/0431/7931/1268/files/tipubelifapizodal.pdf
    • https://cdn.shopify.com/s/files/1/0429/3053/6614/files/aashiqui_mein_teri_new_full_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/juwufemomide.pdf
    • https://cdn.shopify.com/s/files/1/0437/8676/4446/files/83210486944.pdf
    • https://cdn.shopify.com/s/files/1/0449/9665/7320/files/selling_skills_training_module.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_off00006644.bin
a56ae2c7e603b072dccef23942534a5023588f9405602888ab552c4f8dcfaf01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6644 4892 bytes
font_01_sfnt_off000076d0.bin
bc254bb05667184dc77cfd3dbe2ac8e4238e56c6a6afebb777f5f45afd659a2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76D0 10668 bytes
font_02_sfnt_off00009b68.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B68 4324 bytes

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