Malicious PDF — malware analysis report

Static analysis result for SHA-256 117ece2bfb2f0bb1…

MALICIOUS

PDF

59.4 KB Created: 2020-08-19 12:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dbda22912462ff348c73e50daf699008 SHA-1: 71fdc46146e647337fc5be9a23aa09816b85bc3f SHA-256: 117ece2bfb2f0bb1e5053eeb132bab3c4c1cefe468b914fa1e44969b0a35970d
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded external links, many of which point to known malicious redirector infrastructure. The primary malicious link identified is https://ttraff.cc/pify?keyword=birthday+wishes+song+tamil+free, which is designed to redirect users to further malicious content. The document's structure and the presence of numerous links suggest an attempt to lure users to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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=birthday+wishes+song+tamil+free
    • http://files.jakimasfineart.com/uploads/1/3/2/6/132682792/tajuduwurexe-funuwa-xebekelikajera-nobobemevaxune.pdf
    • http://files.thatspeechlady.co.uk/uploads/1/3/1/8/131856271/9372015.pdf
    • http://files.solarconsumeradvisor.com/uploads/1/3/0/9/130968933/8040831.pdf
    • http://jivex.theafroronin.com/uploads/1/3/1/4/131482975/5006450.pdf
    • http://luzeg.junepalmervividarc.org/uploads/1/3/0/7/130738969/newepo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/0304/2216/files/behavioral_marital_therapy.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gikari.pdf
    • https://cdn.shopify.com/s/files/1/0451/5436/9690/files/prodigy_autocode_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/chemistry_for_engineering_students.pdf
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/58088935081.pdf
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/binary_subtraction_using_2_s_complement_examples.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27984898694.pdf
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/never_be_alone_shawn_mendes_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/bolt_grade_8._8_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0447/7675/1261/files/nodavuzofolupov.pdf
    • https://cdn.shopify.com/s/files/1/0431/4487/2090/files/10376223728.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aa25.bin
1e60c150e035fad2250e7f4d20e4d4f6e32b876e6ac5cbbd102e438e5b6d2c65		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA25 5564 bytes
font_01_sfnt_off0000bcff.bin
22d01ec6d8a93af66655365cc7096dbe481f5cd2eafd69b5e428aa48dd321a4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCFF 14328 bytes

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