Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f8d780eb8ca5256…

MALICIOUS

PDF

92.6 KB Created: 2021-03-16 08:26:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01ae7bb46772e7be7ac27dc712354c14 SHA-1: a0164b8d82ff161167e5522a2d43e7579e2a6ce4 SHA-256: 1f8d780eb8ca52561764c7e6b2a0acbebfebebeb9bcaf2e5af57be68a65adfda
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, and it contains an embedded URI pointing to a suspicious domain. The PDF document body, though heavily obfuscated, suggests a lure related to 'Quran questions and answers', likely a pretext to redirect the user to the malicious URL. The presence of embedded URLs and the overall malicious verdict strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

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://lozipotod.ru/wix?keyword=quran+questions+and+answers
    • http://wetiludivarag.scienceontheweb.net/why_is_my_dell_not_turning_on.pdf
    • http://vijevejumozugim.sportsontheweb.net/liwuxonopitezoxojakane.pdf
    • http://tibudirowe.mygamesonline.org/69157841649.pdf
    • https://cdn.sqhk.co/firumefetev/jdhcMgi/froggy_jump_house_fountain_valley.pdf
    • https://cdn.sqhk.co/bisuligiga/Nopd5ha/collage_maker_pro_cracked_apk.pdf
    • http://fofumumitem.medianewsonline.com/watemis.pdf
    • http://dusibarupuguli.medianewsonline.com/10241418033.pdf
    • https://cdn.sqhk.co/muligumixe/Amhb9Ca/fly_fishing_hook_size_comparison_chart.pdf
    • https://cdn.sqhk.co/lilokimoz/eGMU0ji/nick_cannon_and_mariah_carey_marriage.pdf
    • http://ruguwafe.scienceontheweb.net/79182701552.pdf
    • http://vexirororap.iblogger.org/business_proposal_example.pdf
    • http://xetumejowizaguk.22web.org/pelopu.pdf
    • https://cdn.sqhk.co/fawabanof/ge7gjha/fold_up_table_saw_stand.pdf
    • https://cdn.sqhk.co/wusakituzu/WhfshdU/82041454717.pdf
    • https://cdn.sqhk.co/kipasewimoni/hjGiijb/guidepost_montessori_school_at_prosperity_charlotte.pdf
    • https://cdn.sqhk.co/posebozej/ticjezS/mit_sloan_management_review_2020.pdf
    • https://cdn.sqhk.co/kojarepam/rheR2uX/express_vpn_android_cracked_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nilafafakem/your_money_or_your_life_wall_chart.pdf
    • https://s3.amazonaws.com/zubuwujoxom/resumen_de_la_novela_cronica_de_una_muerte_anunciada_por_capitulos.pdf
    • http://jidowadosul.epizy.com/42132753817.pdf
    • https://s3.amazonaws.com/xupovobejanam/kathi_movie_in_moviesda.pdf
    • http://felugibesixe.onlinewebshop.net/kelafowatulalorite.pdf
    • http://davojuke.epizy.com/how_to_fix_wahl_cordless_clippers.pdf
    • http://devepovamijube.epizy.com/abbot_wood_report_1937.pdf
    • https://s3.amazonaws.com/tulosa/libukinowut.pdf
    • http://teluroluxeterez.myartsonline.com/tissot_t_touch_titanium_manual.pdf
    • https://s3.amazonaws.com/purixifusipelid/25467667144.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_off00012d87.bin
2bcf8e2bb770b2ebb57753ca27601320e486c85c3126084f59373cbeabe22f37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D87 5068 bytes
font_01_sfnt_off00013edc.bin
bbd76a080fc0384eb908a92d0f1d09f86b4e657317178359dbcf28e143a771db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13EDC 10572 bytes

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