Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccd827a023b8ecf2…

MALICIOUS

PDF

58.0 KB Created: 2020-08-08 14:12:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f91b062111433f9b3fa17378b1c6783b SHA-1: 46d03ca0c7aa11f1003f123c029b6d4f9ce66dc9 SHA-256: ccd827a023b8ecf27cdb3d3e80e1e88ae8c8d0fbfaf8f7289268f07aaf667c2c
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though malformed, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose of the PDF is to redirect the user to a malicious site, likely for phishing or malware distribution. No scripts were extracted from this sample.

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.ru/pify?keyword=anacreonte+poesie+pdf
    • http://files.multiculturalassociationsussex.com/uploads/1/3/1/3/131398131/sezasa_pirapor.pdf
    • http://files.thewanderingweb.com/uploads/1/3/0/7/130775277/jiwarotuzere_fufidutum_tanodivu_nofasi.pdf
    • http://xozuv.reachingforgreatnessguide.com/uploads/1/3/0/7/130776445/vonekudo-tofokadag.pdf
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/tosilapopi.pdf
    • https://cdn.shopify.com/s/files/1/0438/6524/3803/files/physics_acceleration_questions.pdf
    • https://cdn.shopify.com/s/files/1/0429/1349/7247/files/bible_quiz_genesis_1_50_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/2516/9565/files/wavagaduvikababi.pdf
    • https://cdn.shopify.com/s/files/1/0438/9765/1352/files/applied_hydrogeology_fetter_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/lewofigun.pdf
    • https://cdn.shopify.com/s/files/1/0428/6794/9724/files/linuxopodob.pdf
    • https://cdn.shopify.com/s/files/1/0431/0863/0681/files/java_program_game.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/duvegofokamituveb.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/apologize_one_republic_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84407481133.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/98514900269.pdf
    • https://cdn.shopify.com/s/files/1/0433/8532/3683/files/ravebivo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000093e5.bin
1af69a1b9c6deede3d56d994f1591bafd05c742530ce713ee38c4cc3eed08bbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93E5 4892 bytes
font_01_sfnt_off0000a482.bin
1252b68c0104ec24fcbfd440a4071725eefd677401905bc7dbf9a9d4ea5f59d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA482 12024 bytes
font_02_sfnt_off0000cb54.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB54 4324 bytes

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