Malicious PDF — malware analysis report

Static analysis result for SHA-256 38724ea8060d60ef…

MALICIOUS

PDF

42.7 KB Created: 2020-07-10 06:26:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c603d2b2ecb07856f1537bb7e000fddc SHA-1: fd09d3088e0c52f27a5806d416316c816f5e06a4 SHA-256: 38724ea8060d60efab3ccf91295b2a59e8212c65512d2402d938b007d5279d0f
128 Risk Score

Malware Insights

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

The PDF contains a deceptive call-to-action and numerous links to external PDF files, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary URL, https://ttraff.ru/wb?keyword=download%20pdf%20instead%20of%20opening%20in%20browser%20html, is flagged as a malicious redirector. The document body and heuristics indicate a lure to download a PDF, likely to initiate a further malicious download or exploit. 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=download%20pdf%20instead%20of%20opening%20in%20browser%20html
    • http://files.quantummachinelearning.org/uploads/1/3/1/4/131438002/1f501d56aea6.pdf
    • http://files.mwcatlanta.org/uploads/1/3/1/4/131454126/jukikenu.pdf
    • http://files.preacherponderings.com/uploads/1/3/1/4/131437474/jajesuzimeg.pdf
    • http://files.sjvkailua.org/uploads/1/3/1/4/131437948/1f63444f7ad5aa.pdf
    • http://files.theplatteringco.com/uploads/1/3/1/3/131380236/5758568.pdf
    • http://files.jesusnotjesus.org/uploads/1/3/1/1/131164387/wojabusizamatex.pdf
    • http://files.littleladyo.com/uploads/1/3/0/9/130969004/furopigolijur.pdf
    • http://files.getwriteentertainment.com/uploads/1/3/1/6/131606271/2372858.pdf
    • http://files.elisebiersma.com/uploads/1/3/2/6/132695329/tudemegumebomi.pdf
    • https://xolutibeju.files.wordpress.com/2020/07/70047474270.pdf
    • https://vewitoxu.files.wordpress.com/2020/06/23604690156.pdf
    • https://posuwobi.files.wordpress.com/2020/06/37175202318.pdf
    • https://wixulanax.files.wordpress.com/2020/07/93644838450.pdf
    • https://dowulito.files.wordpress.com/2020/07/25988070944.pdf
    • https://denorawe.files.wordpress.com/2020/07/wuluxepepewa.pdf
    • https://sofifetipi.files.wordpress.com/2020/06/36507537462.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58863311498.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/magej.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bipifapokuwegi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94260126358.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.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_off00006936.bin
23367316007eb6829602d522de0cea5fafb0bef7f249bbb38e1773502388c3b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6936 5476 bytes
font_01_sfnt_off00007bb7.bin
ad8426aa2efa56461070cc3d5ad5e94cadb9d2243e2bac0c33dc334a0ba778da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB7 9760 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.