Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e05c2cee013946…

MALICIOUS

PDF

46.5 KB Created: 2020-10-28 19:13:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7f88251532e8ae7ee3f37938908e4d59 SHA-1: 988007fb5a587a604fb44f30ffc4238d41084d26 SHA-256: 94e05c2cee013946161e8e8ff6fdd9dd31d3ff0285ba4ca14bd555fee5eba686
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.cc/123?keyword=tenergy+arlo+charger+manual In PDF document text
    • https://nosekuge.weebly.com/uploads/1/3/2/7/132740467/9b66150382.pdfIn PDF document text
    • https://vewusijonaw.weebly.com/uploads/1/3/4/4/134489037/4070303.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389370/normal_5f9856e46d413.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404727/normal_5f992e6fea838.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393033/normal_5f915b7e730ce.pdfIn PDF document text
    • https://gawubodukajine.weebly.com/uploads/1/3/0/9/130969599/lexakuzelatirur_pulumixo_sijadis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/1683477853.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/wokil.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/apocrifos_del_antiguo_testamento_tomo_3.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/12868480207.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/vogafuvesusokiru.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/60953120089.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/bpsc_ae_pre_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/periodic_table_of_elements.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/lixafivomifozexifodisiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/takateg/89782567752.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/rizukan.pdfIn PDF document text
    • https://s3.amazonaws.com/waxejajinigafu/toussaint_louverture_quotes_in_french.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/28930625052.pdfIn PDF document text
    • https://s3.amazonaws.com/tosasugokod/69267413231.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/adaptive_schools_strategies.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/michael_bernard_beckwith_carti.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6671 4840 bytes
SHA-256: 42f99cf901557e164d52cb284896027e567c11a0d2c0b803c149e3054580b14f
font_01_sfnt_off000076ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AD 11240 bytes
SHA-256: 1710c8d741018c236b9c3dbcb3f51407442cc2915d251aee8c414ce0c8a96821
font_02_sfnt_off00009cca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CCA 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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