Malicious PDF — malware analysis report

Static analysis result for SHA-256 442d149c1fb9b561…

MALICIOUS

PDF

34.8 KB Created: 2020-09-11 00:23:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96f2cd8731a3ff39f49162eddc4f1bc6 SHA-1: 184a1bca95d29c258c4d90ba84d9dcb7c51c512e SHA-256: 442d149c1fb9b561defe890c8b1713b4f214b4efe7089ef88062eab7ecf75046
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a government ministry address, likely a lure. The presence of a link farm further suggests an attempt to manipulate search engine results or distribute content broadly. No scripts were extracted, but the primary malicious activity appears to be redirecting users to a harmful URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/pify?keyword=ministry+of+information+and+broadcasting+pakistan+address
    • http://files.teressafoss.net/uploads/1/3/1/6/131637723/zejuwigewok-neremojofogexu-kodotap-bilunibamowasi.pdf
    • http://files.boonecountyhumane.org/uploads/1/3/0/8/130874655/pipivarelil.pdf
    • http://mejajekar.bjeweledboutique.com/uploads/1/3/1/0/131070581/a035fde757c93.pdf
    • http://files.stephendarbyministries.com/uploads/1/3/1/3/131382841/banepa-rebij-kixokeviweb-rolamo.pdf
    • http://files.sophiagardiner.com/uploads/1/3/1/3/131382406/mobar-pitaw-zamotigovufu.pdf
    • http://files.carmineruddy.com/uploads/1/3/0/8/130814611/5845067.pdf
    • https://cdn.shopify.com/s/files/1/0430/7084/9177/files/algebra_1_workbook_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/1932/7896/files/management_case_study_with_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/3953/8851/files/danawed.pdf
    • https://cdn.shopify.com/s/files/1/0431/7036/5602/files/ielts_academic_reading_strategies.pdf
    • https://static.usrfiles.com/ugd/585b1d_6dc7665aef974f8e809acb6713f27479.pdf
    • https://static.usrfiles.com/ugd/e3ff21_adebf97430b74f78b51a43010c583489.pdf
    • https://static.usrfiles.com/ugd/824332_36ee964e0eca4ad183f569461e452d6d.pdf
    • https://static.usrfiles.com/ugd/af0aa9_83552068963a4161a27719557fdfa747.pdf
    • https://static.usrfiles.com/ugd/77d535_9c5c957aa007493ba9299f9cb29dcfd9.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_off000048fa.bin
95efb02c32c8c26ddd31110349bbe86eff078ffd276680bed5edeaa590fe36ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x48FA 5756 bytes
font_01_sfnt_off00005c8c.bin
2b8439b4db2ceca69c3f7b78cd1364bee7a6c675d65fe9950e79acdfcc3e14a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C8C 9816 bytes