Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7ebe2fe89ba3f8b…

MALICIOUS

PDF

124.0 KB Created: 2020-08-20 10:05:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 07daa3afb551a784e9c8be6addef99a6 SHA-1: 9c6ae451c08adee4ad8bde78a5e73b5c2c3ae41b SHA-256: b7ebe2fe89ba3f8bfce3acc232d54c007ec876e20c26f03143f8fc7224103b2d
200 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, specifically linking to known malicious redirector infrastructure and employing an advance-fee scam or payment redirection lure. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector heuristic. The primary attack pattern involves tricking the user into clicking a link that leads to further malicious activity.

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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=icps+new+guidelines+2017
    • http://files.confluenceresort.com/uploads/1/3/1/4/131483371/xeguf_kamom_bemumareximu_powuk.pdf
    • http://tefaguxu.harveyyoung.net/uploads/1/3/1/4/131406226/4066694.pdf
    • https://cdn.shopify.com/s/files/1/0437/0504/1051/files/definition_of_communication_skills_by_different_authors.pdf
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/65963182457.pdf
    • https://cdn.shopify.com/s/files/1/0430/7232/3737/files/84604907237.pdf
    • https://cdn.shopify.com/s/files/1/0428/3315/0118/files/90107342952.pdf
    • https://cdn.shopify.com/s/files/1/0450/1274/6390/files/varigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/23281457691.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/xutiwonejubi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5730/7039/files/cemu_games_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/5376/0160/files/39616622125.pdf
    • https://cdn.shopify.com/s/files/1/0434/6229/5714/files/10368222990.pdf
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/tapasinudizom.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/liu_kang_fatality.pdf
    • https://cdn.shopify.com/s/files/1/0435/0004/4440/files/galvanised_mesh_sheets_nz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9793/9349/files/59143284736.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016561.bin
c22d033f9fde3fd35d6b426b2f03da3f0522087f6750087a11c49073045d8e58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16561 5368 bytes
font_01_sfnt_off000177da.bin
b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x177DA 3720 bytes
font_02_sfnt_off0001833b.bin
908534d9b928e837345d47e8a1199c9d51750a9d7900d73815bf4694695029e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1833B 7520 bytes
font_03_sfnt_off00019b81.bin
f5e78b64e08d70c284edbbc640764343e7926c76fc3eb4e42830c37ea94857fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19B81 12004 bytes
font_04_sfnt_off0001c24a.bin
b35da07f7b8047843cba877ce754e1fd019a12264f2afbef0c2e28e2b7e6eb28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C24A 9940 bytes

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