Malicious PDF — malware analysis report

Static analysis result for SHA-256 25ca62617aa41ea9…

MALICIOUS

PDF

44.5 KB Created: 2020-08-14 03:01:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2b7e524c5f9c44baaaebf595b46620b SHA-1: c2b9b0c0b22b654cb8e093ca00dd61951ab244a4 SHA-256: 25ca62617aa41ea9a161d6f067216e890f8442e222ab72b42e82b08b799aa6ac
160 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Florida medicaid provider manual 2018' and includes the malicious URL, suggesting a lure for an advance-fee scam. The heuristic firings confirm the presence of a malicious redirector and a link farm, further supporting the scam lure.

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.
  • 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.
  • 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/wb?keyword=florida%20medicaid%20provider%20manual%202018
    • http://mamunigad.sarodvillage.com/uploads/1/3/1/6/131606490/643044.pdf
    • http://xekono.interacthhs.com/uploads/1/3/0/7/130776791/pojevuwazotuzuwogusu.pdf
    • http://files.americanwellnesssolutions.com/uploads/1/3/0/7/130740389/dde6d3.pdf
    • http://fopojot.portabletarget.com/uploads/1/3/0/7/130775680/9372767.pdf
    • http://files.scacsl.com/uploads/1/3/2/6/132681409/1a081ca1b.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zevuwuvufotolotatagonisex.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/blank_behavior_chart.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/vejimusuba.pdf
    • https://cdn.shopify.com/s/files/1/0429/5540/7511/files/epileptiforme_o_que.pdf
    • https://cdn.shopify.com/s/files/1/0431/0423/9770/files/automation_studio_plc_programming.pdf
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/8915784211.pdf
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/final_fantasy_7_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/comment_installer_une_camra_de_surveillance_wifi.pdf
    • https://cdn.shopify.com/s/files/1/0438/6045/9685/files/ayushman_bharat_hospital_list_in_bangalore.pdf
    • https://cdn.shopify.com/s/files/1/0429/7110/3395/files/classification_of_carbohydrates_with_examples.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/68897090939.pdf
    • https://cdn.shopify.com/s/files/1/0432/8092/4837/files/duligigubufozazesenejitis.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_off000061c2.bin
b56fac9225e8d2d896c04b13f78e8860ce62c45b3a6711f5f2707912267ee3c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 5380 bytes
font_01_sfnt_off000073f2.bin
fd4b75d441370030575c3c4397c9304c185257670668c1036e9692628427222f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F2 10244 bytes
font_02_sfnt_off000096be.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96BE 4324 bytes

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