Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5027a93b81ffcc…

MALICIOUS

PDF

34.0 KB Created: 2020-08-19 07:08:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a06183a770dc98bccfcd37fd2ccd4b4 SHA-1: fbdecb52c9e03cc273addb79b63b6760e31c3a86 SHA-256: 7e5027a93b81ffcca3592a92f8e40c835db9e618a8df96df72e2748f0c1fbf14
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=jurassic+park+theme+song+sheet+music+clarinet'. This URL is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a lure to a malicious site. The presence of multiple embedded links, identified by the PDF_SEO_LINK_FARM heuristic, further supports the malicious intent.

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.ru/pify?keyword=jurassic+park+theme+song+sheet+music+clarinet
    • http://files.cookedwithhart.com/uploads/1/3/1/4/131409884/31d56c5a0280.pdf
    • http://files.punchlinemarketing.com/uploads/1/3/1/6/131637313/9820533.pdf
    • http://files.personalmycology.com/uploads/1/3/1/1/131163969/megap_dotagugan_kuviguzipelub_tufenawo.pdf
    • http://files.sweetanniescreations.com/uploads/1/3/1/4/131406605/6013231.pdf
    • http://zekaduzop.simplycreativetreasures.com/uploads/1/3/2/6/132681352/gomidataxijekane.pdf
    • https://cdn.shopify.com/s/files/1/0433/6726/8517/files/85958823549.pdf
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/performing_tracheostomy_care_ati.pdf
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/dusotes.pdf
    • https://cdn.shopify.com/s/files/1/0431/5627/5362/files/76898737793.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/kododotukavenututuki.pdf
    • https://cdn.shopify.com/s/files/1/0437/2961/7057/files/lebigobevepudidevoludisik.pdf
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/23368936534.pdf
    • https://cdn.shopify.com/s/files/1/0436/3006/7865/files/51291327340.pdf
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/vukamamajosibet.pdf
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/kedadobala.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_off00004752.bin
f98ed8938fcef959342250b7868909868127dbf468ea7653c79ef9cb1843ac41
pdf-font-stream PDF embedded font (sfnt) at offset 0x4752 5400 bytes
font_01_sfnt_off0000598c.bin
156bbc27649b00d9062b257c5014a9e418ba0bf03075dd89ba8d5c843f56deff
pdf-font-stream PDF embedded font (sfnt) at offset 0x598C 9760 bytes