Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b2e0df985729d3c…

MALICIOUS

PDF

50.6 KB Created: 2020-08-15 14:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 424d4fa55a648c928d3121ab5ea37e42 SHA-1: f1a409e3ac06f787101e557f441aba3f3fa1bd1c SHA-256: 2b2e0df985729d3caae38cbefab3ebba1f9305c048e7fb9f7ad0daa6e436fe26
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to a known malicious redirector, specifically 'https://ttraff.cc/pify?keyword=bts+fake+love+flute+sheet+music'. The document body, though heavily obfuscated, also contains this URL and numerous other PDF links, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure, likely for phishing or malware delivery.

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=bts+fake+love+flute+sheet+music
    • http://files.technicalfireanalysis.com/uploads/1/3/2/6/132695556/7073251.pdf
    • http://files.fairtradeswansea.org.uk/uploads/1/3/2/6/132696018/vunemalisoso.pdf
    • http://files.yourroadmaptohealthcarereform.com/uploads/1/3/2/6/132695574/6cb1f2d980e8e1.pdf
    • http://motinenet.artinheavenhellonearth.com/uploads/1/3/2/6/132681946/fonodubonuzit.pdf
    • http://files.elementalcorehealing.com/uploads/1/3/2/7/132740552/jakumoxon.pdf
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/ruet_admission_circular_2020_19.pdf
    • https://cdn.shopify.com/s/files/1/0431/5653/7495/files/83230984633.pdf
    • https://cdn.shopify.com/s/files/1/0431/0014/3770/files/zimogetozifigojo.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/pagtanggal_ng_asignaturang_filipino_sa_kolehiyo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/xududatewejesuzekex.pdf
    • https://cdn.shopify.com/s/files/1/0438/4089/7184/files/fazumefagusufipofoxesa.pdf
    • https://cdn.shopify.com/s/files/1/0437/1483/8679/files/22202178530.pdf
    • https://cdn.shopify.com/s/files/1/0429/2293/4435/files/45585425438.pdf
    • https://cdn.shopify.com/s/files/1/0429/3145/4119/files/fundamental_of_electrical_engineering.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ec4.bin
16a267f0ed321c52cb9147777778aa900d25d494532b8e6b9f96e32ebea7b553		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC4 3516 bytes
font_01_sfnt_off00006b57.bin
dfd55cf31e5f63bc8802e239b939bbe6866fef106a680712e38e5ed6131157d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B57 4972 bytes
font_02_sfnt_off00007c57.bin
8699d14f4e7238363ca75f50017de56149c92fe7d83ce073a4ba0a6a42e054aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C57 15576 bytes
font_03_sfnt_off0000acd0.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACD0 4324 bytes

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