Malicious PDF — malware analysis report

Static analysis result for SHA-256 7848d3ce7cf06767…

MALICIOUS

PDF

71.7 KB Created: 2021-03-02 21:27:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e644d4dab6839b76830dde661b3da5c8 SHA-1: 088b3e32ab1dff5fbce2dc2a0b551dcfd5f24984 SHA-256: 7848d3ce7cf06767ea4505bb9223f6e85bd51c6a57012ae19a8ad33f61668fc9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that masquerades as a helpful guide for programming a garage door keypad, but is instead a lure to a malicious domain. ClamAV and ML classifiers strongly indicate maliciousness, consistent with phishing or malware distribution. The presence of embedded URLs suggests an attempt to redirect the user to a second-stage payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/123?utm_term=how+to+program+craftsman+315+garage+door+keypad
    • https://cdn.sqhk.co/sezogitov/ghJrjcr/merchant_of_venice_sparknotes_act_2.pdf
    • http://fagumawegoleleb.mypressonline.com/65509047497.pdf
    • https://static.s123-cdn-static.com/uploads/4449603/normal_5fca64b238111.pdf
    • http://tuwukadinem.mygamesonline.org/rekejisetitefalisap.pdf
    • http://tonedomopoja.scienceontheweb.net/baby_girl_boutique_outfits_cheap.pdf
    • http://samejeno.iblogger.org/are_re_re_re_bajarangi_song.pdf
    • https://cdn.sqhk.co/jogeguzotire/PbQjcje/98933587733.pdf
    • https://cdn.sqhk.co/vumorumuvogi/ETjgEP1/zombicide_green_horde_no_rest_for_the_wicked.pdf
    • https://cdn-cms.f-static.net/uploads/4445106/normal_6020cbc0ef339.pdf
    • http://nuloriwilorij.scienceontheweb.net/purisomedolepopatu.pdf
    • https://cdn.sqhk.co/ravunovibuxi/jdfginl/maxukefor.pdf
    • https://cdn-cms.f-static.net/uploads/4408177/normal_5fda46ce3fda2.pdf
    • https://cdn.sqhk.co/lanuniwa/ghjEgj9/botapovozor.pdf
    • https://cdn.sqhk.co/purilusevike/idNiiIt/learn_electrical_wiring_online.pdf
    • http://tetupamino.mywebcommunity.org/top_10_acoustic_guitar_songs_youtube.pdf
    • http://bawazofo.getenjoyment.net/numerical_linear_algebra_textbook.pdf
    • https://cdn.sqhk.co/tuwetebep/ZuvuPhf/highway_30_diner.pdf
    • https://cdn-cms.f-static.net/uploads/4421770/normal_6035613c8a1e1.pdf
    • http://sevosegopuro.iblogger.org/how_to_intercept_in_madden_16.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rogofideb.onlinewebshop.net/59238124487.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_off0000dac5.bin
0032b2d4fd446f883cc296ff6c61eaf441dbef08d75928a91967fe8505ee2371
pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC5 6000 bytes
font_01_sfnt_off0000ef44.bin
64c5986853e52ea6ad0ac3066c6dcee8aa07e2b4dc837344574a3217cda99f0a
pdf-font-stream PDF embedded font (sfnt) at offset 0xEF44 9960 bytes