Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae43db2ab90033d…

MALICIOUS

PDF

41.2 KB Created: 2020-08-11 13:46:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49e5aad1d6437b0b6bb3e6f09d4c7ae3 SHA-1: 83d9cc7e9639a1fc714ea10d93c04c7c2686ca58 SHA-256: 8ae43db2ab90033ddf85e19f94a4e6702f48a8e383d0582504350382eb0bebfd
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to benign Shopify URLs, but one critical link to a known malicious redirector at 'ttraff.cc'. This suggests a link farm or phishing lure, attempting to redirect users to malicious content under the guise of providing a diet chart. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

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=muscle+gain+diet+chart+pdf
    • http://files.wer1ecect.com/uploads/1/3/0/9/130969899/latotukobovavanev.pdf
    • http://files.abundantgracesparta.org/uploads/1/3/0/8/130814382/a4cf461f663.pdf
    • http://vubajex.isca-mediation.com/uploads/1/3/0/9/130969060/gikukeduxaluxe.pdf
    • http://files.drugfreeharrisoncountywv.org/uploads/1/3/1/1/131164236/govurabawoxivilex.pdf
    • https://cdn.shopify.com/s/files/1/0434/4017/7314/files/fundamentals_of_matrix_computations_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/jokesegiratotefubimadiwo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/justin_bieber_baby_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/3792/5269/files/pimiguzuli.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89832202682.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/mogoruxenugugonawuxiza.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/wunafusadolevegom.pdf
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/xibogageje.pdf
    • https://cdn.shopify.com/s/files/1/0431/6754/7554/files/54199058772.pdf
    • https://cdn.shopify.com/s/files/1/0429/6278/0311/files/experiencing_mis_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/0257/4494/files/jigevolabumefid.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_off00006399.bin
29b0557bd76d10b841122e11d0f1f4c4bd441ab3b4df3a50fe94b0f327eac079		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6399 5424 bytes
font_01_sfnt_off0000760a.bin
77ba42be1ea6d30e461ed5669833086022e7013b87f3339aae015dd8b390aac8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x760A 9856 bytes

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