Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4c73ff63ebd21f3…

MALICIOUS

PDF

69.1 KB Created: 2020-08-08 21:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 626c4c47be689232066c8ba80736d89c SHA-1: ce795698981fc369e2aa232ef02a0875cb016578 SHA-256: f4c73ff63ebd21f33db7f71b79aac270a698d55bcc9abfe15dc3249756d972ac
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector to a known malicious domain, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'supplementary feeding pdf' and a URL that aligns with advance-fee scam lures. The presence of numerous external PDF links suggests an attempt to distribute malicious content or redirect users to phishing sites.

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/pify?keyword=supplementary+feeding+pdf
    • http://files.vahana.ca/uploads/1/3/1/6/131637374/4f7b54e4319be.pdf
    • http://fotifufav.glenrockarboretum.org/uploads/1/3/1/1/131164239/9439527.pdf
    • http://files.crossroadscounsellingcentre.com/uploads/1/3/1/3/131379815/868b46c53de70a6.pdf
    • http://files.ccapsummerinstitute.com/uploads/1/3/0/7/130775645/8a8df2a.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/lekamozofukamiwez.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/sodegapawis.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1985/files/jebijajizitip.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/63874246330.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/7658813943.pdf
    • https://cdn.shopify.com/s/files/1/0431/4241/4492/files/47600251777.pdf
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/7179369410.pdf
    • https://cdn.shopify.com/s/files/1/0433/5599/6328/files/homes_around_the_world_oxford.pdf
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/42218920950.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3365514284.pdf
    • https://cdn.shopify.com/s/files/1/0435/3867/7924/files/voxenok.pdf
    • https://cdn.shopify.com/s/files/1/0437/6671/0429/files/43470196049.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1373/files/manitomawolibod.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/bovoxemimibisovebunoki.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000d235.bin
930eaba1b398b58d3632e87118eac91e6b1a10ad86a18e067caf1f41134b6020		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD235 20144 bytes
font_00_sfnt_off000068ac.bin
03555527ea29160e8e1ab9690ccd6a8e377a843017d8aa2f5f9eb10b71f53ddd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68AC 6476 bytes
font_01_sfnt_off00007ef5.bin
c198143ba01e4c063efa184a6ac5b555520d23f128c619c6efc49c0c3a2fd1fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF5 5388 bytes
font_02_sfnt_off00009131.bin
c5e9daad761c53e072f2e352d1a6bff2f68e6661815ac30d097576c88e380365		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9131 7112 bytes
font_03_sfnt_off0000a48f.bin
8b8968ed9e5b38df6cd52420a7d2f4247b23ff0ce6236d88cc713636ad4e4c38		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA48F 14304 bytes
font_05_sfnt_off0000f3ca.bin
8723dc86c0dc32c864fe2062a87f0040f44150548bfbbcfd44a7a12d43c60b08		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CA 5112 bytes

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