Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f092de924047913…

MALICIOUS

PDF

77.2 KB Created: 2021-03-25 08:44:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e674a14a809d96a4cf40387de368141 SHA-1: b06335765dddc879d432eb6ce525a0ce3adb85b6 SHA-256: 7f092de92404791379f8531b3494922fc32b4a9ab45b1b537fe1d750970e9a6b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://midufefew.ru/wix?keyword=aquacal+heatwave+superquiet+manual` suggests a phishing or credential harvesting attempt disguised as a product manual lookup. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely leveraging a PDF exploit or social engineering to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://midufefew.ru/wix?keyword=aquacal+heatwave+superquiet+manual
    • http://ezfix.asia/valazilovawugokapoxuvbef7y.pdf
    • http://rigikipix.22web.org/butir_butir_budaya_jawa.pdf
    • http://ekzo-fruit.ru/xatisoririwojaruxifayc3wm.pdf
    • https://nugatifijomit.weebly.com/uploads/1/3/4/7/134715362/bf1bfd82d6.pdf
    • https://libezitotew.weebly.com/uploads/1/3/4/6/134603607/keridumibewo.pdf
    • https://devaropig.weebly.com/uploads/1/3/4/6/134616199/mewugiwiduxix_wevolagopugoba_xujaxolanofi.pdf
    • http://g2am2e.xyz/43552447298yds23.pdf
    • http://sigorododosub.iblogger.org/bududozufujulubomiperasuk.pdf
    • http://stakingyfi.com/parkour_gym_oklahoma_citykhvjt.pdf
    • http://pepariravifaza.getenjoyment.net/autocad_lt_layout_tutorial.pdf
    • http://francobusiness.com/fewujepik3guf.pdf
    • http://moreprodukti.com/6803843873852bmb.pdf
    • http://redirunna.xyz/attack_on_titan_season_4_episode_2_release_date_ukj3mji.pdf
    • http://netewe8.xyz/derwent_inktense_pencils_on_silke9k7f.pdf
    • http://arfesopt.com/graphic_design_rate_sheetwko1n.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/da83ec0e-0ca3-4300-a02b-0d3ede4b43c2/sitting_yoga_poses_with_names_in_hindi.pdf
    • https://uploads.strikinglycdn.com/files/e128ebe3-d625-458f-b117-bdee3a376e32/supigigelugezumikereze.pdf
    • http://nikavavufuxirel.epizy.com/eliciting_sounds_techniques_and_strategies_for_clinicians.pdf
    • https://uploads.strikinglycdn.com/files/d15a52a4-ea65-45f1-8add-9e1763a7f211/saul_d_alinsky_rules_for_radicals_quotes.pdf
    • http://xemunebo.atwebpages.com/kulijuvesawadunume.pdf
    • http://nekapiv.epizy.com/tiziwapuzi.pdf
    • http://nikibulafejew.rf.gd/energy_flow_in_ecosystems_worksheet_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e075.bin
33ecdf89ff8819c4153beadaa83356d62b5728309ad0e2c3633dcadde9b5ec17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE075 5212 bytes
font_01_sfnt_off0000f21a.bin
4f829b20d776083da94f4cb27fd57ab73948b7b289fb736e7da69b770cf4a741		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF21A 11172 bytes
font_02_sfnt_off0001179c.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1179C 4324 bytes

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