Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5daa586e9c92fb5…

MALICIOUS

PDF

44.0 KB Created: 2020-08-08 06:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2476b437651e2200bb2abc5e23042d91 SHA-1: 1ba0d813137c83b6c8e48215e765162c0676cb44 SHA-256: a5daa586e9c92fb518fa2e2084fd230da4320b2fb012aa8948296bae0a5ce66a
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.cc/pify?keyword=battery+lithium+ion+pdf'. The document body, though heavily obfuscated, contains references to 'Battery lithium ion pdf' and the malicious URL, suggesting a lure to trick users into visiting a potentially harmful site. The presence of a callback phishing lure heuristic further supports the assessment of a scam or phishing attempt.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=battery+lithium+ion+pdf
    • http://files.drherbal.shop/uploads/1/3/1/0/131070212/budedexarazew-tiwakoz.pdf
    • http://files.readthybook.com/uploads/1/3/0/8/130813042/2da9db2dc18e9a7.pdf
    • http://files.uaphialphadelta.com/uploads/1/3/1/4/131438784/8184893.pdf
    • http://files.womanspiritjourney.com/uploads/1/3/2/6/132682471/gilowajogavogije.pdf
    • http://files.graceplacecalvary.org/uploads/1/3/0/7/130775434/rikosezax.pdf
    • https://cdn.shopify.com/s/files/1/0434/7707/4086/files/xalowi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/93279885075.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/81840042084.pdf
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/saramogozorizazuden.pdf
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/quikrete_walkway_molds.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/6509932078.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/rofunanedanizali.pdf
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/dumegidovepipatolevoman.pdf
    • https://cdn.shopify.com/s/files/1/0454/4820/0342/files/skyrim_creation_kit_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/nolalifiwisabezafixupefuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/48722498124.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tulajemo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7083/3319/files/get_ielts_band_9_writing_task_1.pdf
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/git_config_url.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_off00006c77.bin
d70cfb0c100788338a19f72dc754296ac62f8f74313bbfd03c0822be60b60795		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C77 5252 bytes
font_01_sfnt_off00007e32.bin
dab0a8a60d354cf7906cb5bd3c59a2600bd48dea2b6fc9bb4d15bd0a492b4b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E32 10636 bytes

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