Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0a76bb4c8c46cd8…

MALICIOUS

PDF

50.4 KB Created: 2020-08-15 02:33:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5ab6c52980c3d0181a6d97ec32c12ae SHA-1: 18426648ab990b80ccc9e633901e15439163e8ba SHA-256: c0a76bb4c8c46cd82672feccd925a898d06e3d8ab1f6b1b6b1b7a46d525b31bb
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=incident+management+process+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to drive users to this malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=incident+management+process+template
    • http://files.indianasal.org/uploads/1/3/0/8/130874567/xilif-kevojurine-levozejife-ronuxuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0406/files/public_relations_strategies_and_tactics_11th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/0301/0459/files/english_for_business_communication_student_s_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/wolurajugudoxug.pdf
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/katori_blouse_cutting_and_stitching.pdf
    • https://cdn.shopify.com/s/files/1/0433/5874/8837/files/serepasemafudofusuripe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6196/0091/files/nebasetidobolafajogipi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8389/0850/files/98833583204.pdf
    • https://cdn.shopify.com/s/files/1/0429/4174/3263/files/dejemofoxezefusefiferev.pdf
    • https://cdn.shopify.com/s/files/1/0435/8501/1880/files/christmas_bible_quiz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2723/4969/files/4959012405.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/xekizarekuwaviz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4702/files/hanuman_chalisa_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7913/files/70864900596.pdf
    • https://cdn.shopify.com/s/files/1/0439/5122/7038/files/95135898628.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078a5.bin
cbf4f616637ae2282766f19d1ecd23550f0d81bf7656d46a0d95986d25ff7e1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A5 5116 bytes
font_01_sfnt_off000089db.bin
cfa99702e483276e26dd7118cc39555f269b7ac8e5a2b1d6c5e1af57a0f02f7c
pdf-font-stream PDF embedded font (sfnt) at offset 0x89DB 10700 bytes
font_02_sfnt_off0000ae2f.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE2F 4324 bytes