Malicious PDF — malware analysis report

Static analysis result for SHA-256 a876d64d8a8816ab…

MALICIOUS

PDF

84.3 KB Created: 2021-05-26 05:32:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 7e3697d3eb168f67be15e490a65496be SHA-1: b80e7edcedcf1ee6623df88b88bc8211cf4e398e SHA-256: a876d64d8a8816ab75b5bfdb79f289e16392afc202b59a495a2a38808bf3282c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://baarspo.ru/strik?utm_term=los+brujos+del+poder+2+descargar+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403683/normal_5fe7b1361f727.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366366/normal_5fc65c14920e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_60207a12b1a60.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467979/normal_6063373d8556e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501509/normal_604cbd26825ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403954/normal_6041c7cbdcfd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462354/normal_6019fd107a8da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368244/normal_605ab6d260f39.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385230/normal_5fec1db36f036.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://uploads.strikinglycdn.com/files/4f457f19-1312-4abd-babb-a067d51b9659/call_out_to_meet_you_tell_you_im_sorry.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/lol_fiddlesticks_support_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/36329309242.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2adf6db1-dff8-475e-b9b6-2c3b37421bed/how_do_i_set_up_my_smart_bracelet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85201303-e3d4-42e1-999a-a6443dad2200/hp_photosmart_c3180_problemas.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/griddlers_iphone_app_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/kopas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94cff851-d4db-42f8-9371-1cd29eafb5c7/who_makes_evcon_air_conditioners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87e0abb7-c3e7-45ad-97d2-eb7f65a1023f/python_found_in_naples_fl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cddbac9-2d7d-4784-ba58-a480aa164362/nys_dmv_drivers_permit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94f2d091-5777-4dbb-afd1-213925245f64/john_deere_44_inch_snowblower_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/kangertech_evod_vv_power_supply_1000mah.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e63c25f-0dc2-4e2d-802a-6d006c03af4c/how_to_develop_childrens_skills.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdb57ca6-87e8-4dc2-85d0-170fb135a837/xipuferot.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_off0000fa04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA04 5260 bytes
SHA-256: a4eb7824385d562e4e3d0123da04c990993a443df74b9bd18b2f5f4932638b21
font_01_sfnt_off00010bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BFC 12232 bytes
SHA-256: b94851d882314350427857ea4561e3e8e40e41ed45ea89c598cd38b95418b207
font_02_sfnt_off00013352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13352 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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