Malicious PDF — malware analysis report

Static analysis result for SHA-256 e56038e21e47a165…

MALICIOUS

PDF

43.2 KB Created: 2020-08-12 21:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87a7a764d91a3c0b9675608f9ca5b161 SHA-1: 8016b36d96588e83caf02d49f55a1186cab374d4 SHA-256: e56038e21e47a165725cb936e440b288ff0eef96a7a8cf29a4d00063f04590f9
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying a malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers this heuristic. The primary attack vector appears to be directing users to the malicious URL, which is likely part of a phishing or malware distribution scheme.

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=introduction+to+insurance+mathematics+pitacco+pdf
    • http://files.shellybroughtonart.com/uploads/1/3/0/9/130969824/8c206cc47ed5ac0.pdf
    • http://files.legacyhealingretreat.org/uploads/1/3/0/7/130774962/4123166.pdf
    • http://files.philoouweleen.com/uploads/1/3/2/7/132712413/witebabife.pdf
    • http://files.angelaokeefe.com/uploads/1/3/1/6/131607093/jolusuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/2562/9347/files/predator_generator_8750_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6117/files/rosegegagem.pdf
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/kokolagigesixafage.pdf
    • https://cdn.shopify.com/s/files/1/0430/8775/7461/files/english_speaking_practice_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0440/4323/9589/files/mahalaxmi_calendar_jan_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/1668/1629/files/kanda_sasti_kavasam_lyrics_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9472/1187/files/nedefaretuwiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78683638278.pdf
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/parojijazojetotowekij.pdf
    • https://cdn.shopify.com/s/files/1/0431/9415/5169/files/anfotericina_b_complexo_lipidico.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/kuxazuwez.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/94724612614.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_off00006af4.bin
8c494fb3762f4be26430312e6175eba2d3b0f81bd9e5096515265dce1a8422b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF4 5300 bytes
font_01_sfnt_off00007cca.bin
e14e46ed60f8c116ee444354a9479999822e6db3b9af45565c0f1d5a18929e47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCA 10128 bytes

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