Malicious PDF — malware analysis report

Static analysis result for SHA-256 42e7d8d0154f40b6…

MALICIOUS

PDF

41.4 KB Created: 2020-08-09 02:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4242a564b863d3457db7615bfadee549 SHA-1: 4fd1efa41c2cc183f6fd175167da1d9100f08542 SHA-256: 42e7d8d0154f40b64ac2dc420f848257f96919ec9cb2de625681ab161c636018
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.com/pify?keyword=climate+change+agriculture+and+food+security+pdf, which is likely used to obscure the final destination. The document body itself is heavily obfuscated but contains references to the redirector URL and numerous other PDF links, suggesting a link farm or redirection tactic to deliver a payload.

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=climate+change+agriculture+and+food+security+pdf
    • http://files.myprojectindia.org/uploads/1/3/1/4/131437832/448198.pdf
    • http://tutor.lashtagsupply.com/uploads/1/3/2/3/132302780/nagaxunubafixoforam.pdf
    • http://files.goodmedicineproductions.org/uploads/1/3/2/6/132681501/52fad7d9a6720.pdf
    • http://files.shureunderwater.com/uploads/1/3/0/9/130969424/zajamugufik_dagadimasotuk_pusided.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7305/files/berserk_of_gluttony_novela_ligera.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/58219489922.pdf
    • https://cdn.shopify.com/s/files/1/0431/7039/8357/files/loposeriti.pdf
    • https://cdn.shopify.com/s/files/1/0431/4018/6268/files/origami_tutorial_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/4046/3255/files/sifonof.pdf
    • https://cdn.shopify.com/s/files/1/0438/2185/8973/files/tetoxufexamupalaroxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/java_programming_competition_questions.pdf
    • https://cdn.shopify.com/s/files/1/0428/8738/1155/files/setagimabutijupis.pdf
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/wagner_wedding_march_organ.pdf
    • https://cdn.shopify.com/s/files/1/0434/3844/0598/files/55027308288.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/baliv.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/22720316523.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_off00006388.bin
77ca3578eacc86a92098a52ed5b5b9f60dbae863c6afdb0a1fbed35f9ef9aa2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6388 5576 bytes
font_01_sfnt_off00007653.bin
11383294f705d4691b4167e6bc535a929e2295b8059cdba53ed56c60fa9bdf5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7653 10048 bytes

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