Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc86c19ef65881b…

MALICIOUS

PDF

155.3 KB Created: 2020-10-15 22:33:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 60eda05b55cacad86cfcc37adcc35a29 SHA-1: e179dcd862fa1f97be9bd9f01b14278d67ca728e SHA-256: fcc86c19ef65881b3d25783ecc7a12fb2ca5920d4a75913a4c16e8106f7165b9
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which point to disposable hosting services and redirectors. The primary link, 'https://ttraff.ru/pify?keyword=srimad+bhagavata+purana+english+pdf', is identified as a malicious redirector. The document's structure and link farm behavior suggest it is designed to lead users to malicious sites, likely for malware distribution or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.ru/pify?keyword=srimad+bhagavata+purana+english+pdf In PDF document text
    • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/lagorijudiwox-bunawuw.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/filosom-lusiwikafese-jerupuxorukoti-novubolifunuw.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/jumibopegixifazoga.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/ce895.pdfIn PDF document text
    • https://tabuxeniki.weebly.com/uploads/1/3/2/6/132682737/4484187.pdfIn PDF document text
    • https://site-1039342.mozfiles.com/files/1039342/datiserizajobumemosufone.pdfIn PDF document text
    • https://site-1038503.mozfiles.com/files/1038503/46714648752.pdfIn PDF document text
    • https://site-1037906.mozfiles.com/files/1037906/53949963055.pdfIn PDF document text
    • https://site-1038782.mozfiles.com/files/1038782/92294041693.pdfIn PDF document text
    • https://site-1039604.mozfiles.com/files/1039604/66131565910.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/tadib-pepalitegugoj.pdfIn PDF document text
    • https://bewupoterefi.weebly.com/uploads/1/3/1/3/131380107/68222a251.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/mowesajomorisupitude.pdfIn PDF document text
    • https://jizonuwuko.weebly.com/uploads/1/3/0/8/130814311/476d4813f.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/lejesof_jenizo.pdfIn PDF document text
    • https://site-1037114.mozfiles.com/files/1037114/59098629909.pdfIn PDF document text
    • https://site-1037222.mozfiles.com/files/1037222/64880720700.pdfIn PDF document text
    • https://site-1040777.mozfiles.com/files/1040777/mitesamimubufukipiwatez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366407/normal_5f8758e6e1e8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368471/normal_5f880cf05e834.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5f87d65064fe5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368788/normal_5f87a4154ff78.pdfIn PDF document text
    • https://site-1036713.mozfiles.com/files/1036713/gewiroxuxejixudiretipabu.pdfIn PDF document text
    • https://site-1038669.mozfiles.com/files/1038669/lunuv.pdfIn PDF document text
    • https://site-1043530.mozfiles.com/files/1043530/kotagerupin.pdfIn PDF document text
    • https://site-1044198.mozfiles.com/files/1044198/lekimebezofib.pdfIn PDF document text
    • https://site-1039814.mozfiles.com/files/1039814/lovebosimaviwavarujomoda.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off00021e56.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x21E56 21784 bytes
SHA-256: acc7a16a12bd3abd8d3a3abfd328ffcd6999c7ab33b6b20f489ac31c7187fab6
font_00_sfnt_off0001d758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D758 5760 bytes
SHA-256: 9646654e488ffba12ccfe925ff675d304ecf8e1e21d4b6f83e7b191428e9ff53
font_01_sfnt_off0001eac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EAC8 3772 bytes
SHA-256: 4cd60777e265fafd80a6c4ac8a8f541642313e2b1c6670a3899fdf55b12f51bc
font_02_sfnt_off0001f66d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F66D 12792 bytes
SHA-256: 0b55a11e8cde04e8c9717ade450e5301d29c4bc53ea0ce8b5b3b0ae6395cd18b

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