Malicious PDF — malware analysis report

Static analysis result for SHA-256 478de46544c1402a…

MALICIOUS

PDF

49.9 KB Created: 2020-08-15 02:29:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6142150057920fdc9307dc8222354e5d SHA-1: c9eb364182f722199f30e522b9fda4e376bcaef5 SHA-256: 478de46544c1402a28e3fc319955d1fc709938dcf7ec186a43aeae70580f790d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a lure related to 'Bling launcher no ads apk'. This suggests the primary purpose is to trick the user into visiting the malicious URL, likely to download further malware.

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.com/pify?keyword=bling+launcher+no+ads+apk
    • http://files.tealthreads.com/uploads/1/3/1/6/131637325/benaleg-dexejogitusi-dawipafujero.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pijajaza.pdf
    • https://cdn.shopify.com/s/files/1/0433/6825/1543/files/tefox.pdf
    • https://cdn.shopify.com/s/files/1/0435/5411/1656/files/ligadura_de_cordon_umbilical.pdf
    • https://cdn.shopify.com/s/files/1/0432/1922/2687/files/ice_bin_sachivalay_model_paper.pdf
    • https://cdn.shopify.com/s/files/1/0434/4378/1792/files/werudukutibozawex.pdf
    • https://cdn.shopify.com/s/files/1/0432/0755/7283/files/ruwofi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5026/1911/files/pakugixuvu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/sunulituzotuxezikoge.pdf
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/murotafepez.pdf
    • https://cdn.shopify.com/s/files/1/0432/8924/7894/files/music_conducting_lessons.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/
    • https://cdn.shopify.com/s/files/1/0435/5411/1656/files/ligadura_de_cordon_umbili

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006054.bin
995e11e783e0a116dbb30451e4cec66a653684e62d3d162d9b65d6b6827edbff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6054 6980 bytes
font_01_sfnt_off00007226.bin
2879ab1a882679cf6db3f6d6f7c009feed6dfefde1aa7bcb40cff0ae62893426		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7226 5448 bytes
font_02_sfnt_off00008496.bin
70654550da783579a0266339d5faef22d5b9f643f2fd371b382c384344810c20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8496 5228 bytes
font_03_sfnt_off000097c2.bin
f8f1b2d10dc9086c40d7b29d96a3b19c7188b0e5a4bcd121a6c5f7177d275b45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97C2 10060 bytes

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