Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbb309ab4b1821d7…

MALICIOUS

PDF

75.3 KB Created: 2021-03-06 02:18:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f85315c273ef571997dabe6ac70f2c5 SHA-1: 997304d73d4ed8252a5133ae7730106ad15039ab SHA-256: dbb309ab4b1821d7e5ae3ad312e17053fe694de0ee133297d6198ddd29756f14
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an external URI pointing to 'botokaw.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a "Breville tea maker manual", aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/123?utm_term=breville+tea+maker+manual
    • https://cdn.sqhk.co/gulizate/rslKMha/gamajufi.pdf
    • http://warewakeb.sportsontheweb.net/fefonidufowob.pdf
    • http://zufuruz.22web.org/android_room_update_doesn_t_work.pdf
    • https://cdn-cms.f-static.net/uploads/4475219/normal_6018331bf4201.pdf
    • https://static.s123-cdn-static.com/uploads/4383460/normal_5ff5b7650f1ea.pdf
    • https://static.s123-cdn-static.com/uploads/4369191/normal_5ff1e1de4e28c.pdf
    • https://cdn.sqhk.co/goxobuve/aijmIgf/41028381522.pdf
    • http://tifusavegapawuf.mygamesonline.org/weber_bbq_cookbook_nz.pdf
    • https://static.s123-cdn-static.com/uploads/4373782/normal_5ff929c270e20.pdf
    • http://diziretojiz.iblogger.org/81706341040.pdf
    • http://budokudepa.scienceontheweb.net/nj_drivers_permit_sample_test.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zifilobesumafi/11700121064.pdf
    • https://s3.amazonaws.com/gaxuremewuger/devil_s_advocate_full_movie_480p.pdf
    • http://widifusi.myartsonline.com/how_to_install_offline_google_maps_on_iphone.pdf
    • https://s3.amazonaws.com/mexijegedakol/will_walmart_restock_black_friday_online_2020.pdf
    • http://jujabezemaluwe.rf.gd/mbti_cognitive_functions_infj.pdf
    • http://pazokidewuwi.rf.gd/google_sheets_if_contains_partial_text.pdf
    • http://gakenefux.rf.gd/pazuki.pdf
    • http://palojolasorut.rf.gd/77588036380.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_off0000ec1a.bin
f1abaa701fa8023a06953854a8789b09803954841b1522c1cb7f5ae7b0d71b0f
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1A 4828 bytes
font_01_sfnt_off0000fc70.bin
a7d18f0b3e2a9e4d3a6ebe63dbeb91d72e25d8ef75e92301bac7fe8a67921ec9
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC70 10492 bytes