Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd5cd352d9aa786…

MALICIOUS

PDF

36.6 KB Created: 2020-08-08 21:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b12c89b2c94e737e44c89b6c86a274c SHA-1: b72e282ead0973fc28f12fb288975d44aa14e3a2 SHA-256: 2cd5cd352d9aa786e4a70228315a55adb8ab76a1a76830c1cceea85ae89f26d6
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

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=bcit+map+pdf
    • http://files.propello-coaching.com/uploads/1/3/1/3/131380871/xogitoxumub_zimezexuwil_xeximefeforuro_kuzuvesemip.pdf
    • http://files.merseysidearchsoc.com/uploads/1/3/1/3/131380951/a79c40704c3.pdf
    • http://files.stamfordcivicsociety.org.uk/uploads/1/3/2/6/132696060/fikorogakalakesozuze.pdf
    • http://bekis.tntcircus.com/uploads/1/3/0/8/130873876/68dcb8.pdf
    • http://files.fjeldberglutheran.org/uploads/1/3/1/4/131437702/xerob-wimebur.pdf
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/abbyy_transformer_3._0_keygen_crack.pdf
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/najid.pdf
    • https://cdn.shopify.com/s/files/1/0436/4409/2566/files/nolamegupupipaw.pdf
    • https://cdn.shopify.com/s/files/1/0438/6196/7013/files/tepetarilikupoloduku.pdf
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/primary_auxiliary_verbs.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9538/files/kexutumesuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1706/files/nizidi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/33147310182.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/67572949107.pdf
    • https://cdn.shopify.com/s/files/1/0440/3704/6437/files/dadiwazazixijipij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16711599054.pdf
    • https://cdn.shopify.com/s/files/1/0430/4188/2265/files/52602557624.pdf
    • https://cdn.shopify.com/s/files/1/0438/2933/0082/files/paduzezevekezakusoneb.pdf
    • https://cdn.shopify.com/s/files/1/0433/8669/9925/files/bohemian_rhapsody_piano_solo.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_off000051e1.bin
04c6fe0b222779ad1e8c100899f37a12a17ae8cf796941898e9fe7cd539d752f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51E1 5044 bytes
font_01_sfnt_off00006300.bin
b1e86e1fddc938e9debccf9ff6cbb461aa429aab65328efdb805074af6ea41af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6300 10212 bytes

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