Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7b58bf772cb1dc8…

MALICIOUS

PDF

40.6 KB Created: 2020-10-11 08:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 164390345cfffb1b134c59909296a08b SHA-1: 25fe57490441cce816bf2e63150eae78941facb7 SHA-256: f7b58bf772cb1dc88242373a92943ceac5a220ea20d8dc7ee904f9d4c815b2f1
140 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the primary malicious URL. The heuristic firings confirm the presence of malicious redirector links and a link farm, suggesting the PDF's purpose is to drive traffic to potentially harmful sites. No scripts were extracted from this sample.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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://ggtraff.ru/mozel?keyword=woods+50009+timer+manual
    • https://site-1037218.mozfiles.com/files/1037218/6459231398.pdf
    • https://site-1041384.mozfiles.com/files/1041384/nibipekatexifubox.pdf
    • https://site-1036880.mozfiles.com/files/1036880/26297100290.pdf
    • https://site-1037279.mozfiles.com/files/1037279/vulaxil.pdf
    • http://pavelibag.mrwhatley.com/uploads/1/3/1/0/131070197/22b20ddb207f16.pdf
    • http://files.cardifftherapy.com/uploads/1/3/0/7/130738889/40b97.pdf
    • http://sixopis.perkypelican.com/uploads/1/3/1/6/131637218/721258.pdf
    • http://files.turquoisematrix.com/uploads/1/3/2/6/132681481/3658385.pdf
    • http://files.xmomentsports.com/uploads/1/3/0/8/130874261/60efb8feec17b3.pdf
    • https://site-1036621.mozfiles.com/files/1036621/97098606729.pdf
    • https://site-1037018.mozfiles.com/files/1037018/xumikarofatamaduf.pdf
    • https://site-1036722.mozfiles.com/files/1036722/rarel.pdf
    • https://site-1048190.mozfiles.com/files/1048190/2455096076.pdf
    • https://cdn.shopify.com/s/files/1/0500/3444/2390/files/87322631536.pdf
    • https://cdn.shopify.com/s/files/1/0440/6080/3237/files/jirijivexo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7299/5996/files/roluvogijalilut.pdf
    • https://cdn.shopify.com/s/files/1/0268/7621/5482/files/intensive_english_programme.pdf
    • https://cdn.shopify.com/s/files/1/0499/2335/8888/files/unblocked_games_hacked_500.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_off00005f72.bin
61d708393c582f863ae239031d5b5a4255000b0eec5cd569bc5de19f92211fa2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F72 5404 bytes
font_01_sfnt_off000071ca.bin
658319b80871063bc4b6fb6f82d92465bc4cbe4e5626b67ae39a7cf7eaa56257
pdf-font-stream PDF embedded font (sfnt) at offset 0x71CA 10228 bytes