Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e7b65e85e29cbfa…

MALICIOUS

PDF

48.4 KB Created: 2020-08-12 06:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a62f1b2edd9f483bc81fb5249688086 SHA-1: dad4726e7ee75cb7ac460fd940cbf8d53aa31e1b SHA-256: 4e7b65e85e29cbfa76df09c77c9f18c4a867508d2f833ba5c292577589afd377
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lead users to further malicious content. The document also exhibits characteristics of a callback phishing lure, suggesting an attempt to trick users into calling a fraudulent support number. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to potentially improve search engine ranking for malicious content or to distribute payloads.

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=late+blight+of+potato+disease+cycle+pdf
    • http://wunevivi.sheilaalexanderart.com/uploads/1/3/2/6/132681477/e5f37a219000a.pdf
    • http://files.lillieslion.com/uploads/1/3/0/7/130775735/8037f.pdf
    • http://pojogeri.ccmein.org/uploads/1/3/1/4/131411896/xagifonupebifa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/vuguge.pdf
    • https://cdn.shopify.com/s/files/1/0432/0755/7283/files/18906322186.pdf
    • https://cdn.shopify.com/s/files/1/0447/5266/6778/files/bipolar_junction_transistor_mcq.pdf
    • https://cdn.shopify.com/s/files/1/0435/6141/8913/files/78746982126.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0464/files/diwewepazimeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/8729/6680/files/arsitektur_brutalisme.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69296453687.pdf
    • https://cdn.shopify.com/s/files/1/0439/0433/6040/files/fuzizikipapuberusa.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/fazubabutapivufuberuz.pdf
    • https://cdn.shopify.com/s/files/1/0429/3571/3958/files/19079125310.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6307/files/70293225452.pdf
    • https://cdn.shopify.com/s/files/1/0430/9234/4993/files/psa_nitrogen_generator.pdf
    • https://cdn.shopify.com/s/files/1/0431/6915/3181/files/48808965947.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_off0000730b.bin
909747a4d8991e2b053304dfebc5c1cb255ce9b73e3357c9c972c2719dc548a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x730B 5188 bytes
font_01_sfnt_off000084c3.bin
e1b99b2184d7dcf895b8f1db6bf9866c967977d7af20a703c34a0e9fd8a0702c
pdf-font-stream PDF embedded font (sfnt) at offset 0x84C3 9860 bytes
font_02_sfnt_off0000a679.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA679 4324 bytes