Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed89c6b3b98ebc5b…

MALICIOUS

PDF

35.5 KB Created: 2020-08-10 00:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 865150aa4ffead77af91304e9bc5104b SHA-1: d0cd81c69e885fd063170f6ebd9e5f384311cb5e SHA-256: ed89c6b3b98ebc5b3b88accab182898a2db7da0b633d08a44dbf2ab1428b23b6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to what appears to be a link farm designed to mimic legitimate educational resources. The primary malicious link, https://ttraff.com/pify?keyword=learn+english+in+marathi+pdf, is identified as a redirector to malicious infrastructure. This suggests a social engineering attack aiming to trick users into clicking through to a harmful destination, likely for phishing or malware distribution.

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=learn+english+in+marathi+pdf
    • http://files.eveshealth4life.com/uploads/1/3/1/4/131453623/6483248.pdf
    • http://files.walkinginthewordministries.net/uploads/1/3/0/9/130969917/981e2d1eb2593.pdf
    • http://files.pianolessonsontheweb.com/uploads/1/3/2/7/132712139/ae88d5e.pdf
    • http://files.cynthiawidawski.com/uploads/1/3/1/3/131383247/fubit.pdf
    • https://cdn.shopify.com/s/files/1/0448/9363/4727/files/ielts_fever_academic_listening.pdf
    • https://cdn.shopify.com/s/files/1/0437/2119/5669/files/47062471746.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/pdf_to_word_conversion_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/5715/1142/files/juroretosilaxetola.pdf
    • https://cdn.shopify.com/s/files/1/0428/1335/8247/files/wewoxebelixafa.pdf
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/applied_nonsingular_astrodynamics.pdf
    • https://cdn.shopify.com/s/files/1/0429/2008/3612/files/70112848394.pdf
    • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/mikezadawatuxofebonosutaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/kpss_vatandalk_ders_notlar_2020_benim_hocam.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/77489422393.pdf
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/ntn_ball_bearing_size_chart.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89377355024.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_off00004bd0.bin
7910bf2c7bc545060374665cfea98db159f75fc65c1400d45df9ecb8fa66231a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD0 5396 bytes
font_01_sfnt_off00005e02.bin
76cdeb073f1464c92ff6da20b18fcd6e6064e398ee0eacdaf0b5ab4b69802112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E02 10296 bytes

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