Malicious PDF — malware analysis report

Static analysis result for SHA-256 676c06ed7044c60b…

MALICIOUS

PDF

41.0 KB Created: 2020-09-23 03:40:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d25a6e8b2f236979c30884a68469392 SHA-1: c7145ed0bd18908b2121553291e06b628865013b SHA-256: 676c06ed7044c60bd01a205e982c2d062afcba8672deaeade32504ae013e295a
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to external PDF files, suggesting a link farm or redirection strategy. One prominent link, 'https://ttraff.link/wix?keyword=philips+respironics+simply+go+mini+manual', indicates a potential lure related to product manuals, possibly for phishing or malware distribution. The presence of ML_NYX_PDF_MALICIOUS and PDF_MALICIOUS_REDIRECTOR_LINK heuristics strongly supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.link/wix?keyword=philips+respironics+simply+go+mini+manual
    • http://files.esulix.com/uploads/1/3/0/7/130776268/lebuvelejevu.pdf
    • http://files.klamathfallsfootandankle.com/uploads/1/3/0/8/130813531/5b433c8.pdf
    • http://files.thechickabeechannel.com/uploads/1/3/1/8/131857655/lovomipadevapoziso.pdf
    • http://pigojomu.msuchoir.com/uploads/1/3/1/6/131608016/zibulijaxem_vepidibin.pdf
    • http://files.bplanning.com/uploads/1/3/0/7/130775851/4502de27eeb8.pdf
    • http://files.kwgsd.com/uploads/1/3/1/3/131380440/2167114.pdf
    • http://files.marigoldstoys.com/uploads/1/3/1/3/131398334/1450333.pdf
    • http://ponimu.aniareynolds.com/uploads/1/3/0/8/130874233/jirisurowesogewonap.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://832eaa1a-5227-44e0-a07d-49e117932399.filesusr.com/ugd/8a4248_1a69efd1e0484c1489d85563f5958a35.pdf?index=true
    • https://cfcac515-33d2-4fa0-a2c0-742fdc6646cd.filesusr.com/ugd/bba345_b78471969c2c47689c1667c391844277.pdf?index=true
    • https://ca39b9c9-b91a-4cf6-9534-eb9f0188615d.filesusr.com/ugd/39cb9d_e49c08a716764bbb8c832261f0804bd1.pdf?index=true
    • https://14a8b3a2-7617-4de8-8833-2ac8b5288bdf.filesusr.com/ugd/ea2c45_edb288fc2b354639b1116fb20d001fd8.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/4101/3415/files/diwasepujibubulilonu.pdf
    • https://cdn.shopify.com/s/files/1/0483/9705/8205/files/ley_26_de_2017_ogp.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/leleguvawana.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/hyper_light_drifter_wiki_guide.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000628a.bin
1a7f3021c897045b080132e28376098e263b8f64a34487abeba09c9dafa43cf3
pdf-font-stream PDF embedded font (sfnt) at offset 0x628A 5452 bytes
font_01_sfnt_off000074f2.bin
e8dcb162ae3e51ae17b41dc050836663e7fe9b3ec585183d397df9787476af03
pdf-font-stream PDF embedded font (sfnt) at offset 0x74F2 9940 bytes