Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de6ceec0cd4a160…

MALICIOUS

PDF

78.1 KB Created: 2021-03-29 19:37:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b193c95d9873f131ddff9025a6f198e6 SHA-1: 495cd90aa7eec59b4e3e8c2b10c3c5f4f35e160e SHA-256: 0de6ceec0cd4a16011ae48ebebb22f87b43f54ffe07e65b18ee63730e228eb74
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that redirects to a suspicious domain, likely serving malicious content or a phishing page. The PDF structure itself also shows signs of manipulation with duplicate object bodies.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://pelibifir.ru/strik?utm_term=how+to+work+a+vicks+warm+steam+vaporizer
    • https://peruvapi.weebly.com/uploads/1/3/0/8/130813059/ee9717415a.pdf
    • http://anarchymedya.com/telecharger_attestation_de_travailcgicz.pdf
    • https://dabosimupit.weebly.com/uploads/1/3/5/3/135397997/jidevepaketot-papifida-xegub-tabobo.pdf
    • http://kittyplay.online/what_is_ip_and_subnet_mask35yq2.pdf
    • https://fefirewaw.weebly.com/uploads/1/3/0/7/130775199/3383103.pdf
    • http://bcpreactiva-enlinea.com/mr_coffee_coffee_maker_ratings6tzb4.pdf
    • http://dazixetenulega.22web.org/canon_5d_mark_iv_manual_white_balance.pdf
    • https://xetasigebe.weebly.com/uploads/1/3/4/4/134443645/wetunes.pdf
    • http://karnaval.host/56116722043uxbur.pdf
    • https://radunepik.weebly.com/uploads/1/3/4/6/134617153/lojimumesumova.pdf
    • http://farvestnn.ru/speed_queen_washer_black_friday_sale1543v.pdf
    • http://dietnatur.fun/xozobufubils76q4.pdf
    • http://vittorguxx.site/can_salmon_be_cooked_on_a_george_foreman_grillgy2rs.pdf
    • http://uplrezina.site/50475646312jn6bk.pdf
    • http://dontbeshy.xyz/skywalker_trampolines_15_blue_rectangular_trampoline_with_enclosure6wqhl.pdf
    • https://zewakifu.weebly.com/uploads/1/3/0/7/130740590/5569895.pdf
    • http://adanakebap.org/elaboracion_de_vodka8gqj1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xuvamuba/turtle_beach_elite_800x_ps4_setup.pdf
    • https://s3.amazonaws.com/xaliwalufoguni/char_broil_grill_performance_2_burner.pdf
    • https://s3.amazonaws.com/vunizi/how_to_connect_laserjet_cp1525nw_to_wireless_network.pdf
    • http://pododugeb.rf.gd/functional_programming_principles.pdf
    • https://s3.amazonaws.com/lebejos/87095693155.pdf
    • http://nuxumejaxumem.epizy.com/75103054590.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_off0000f1f5.bin
84648fbb4d6a2d2b15174438b1efc4eef89b6973666b92a985d5857e88469ca9
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F5 5276 bytes
font_01_sfnt_off000103eb.bin
0aa5616ae7a7773ee33348a9fcded3ae5bb93c26130ca67c2f93feadd9282241
pdf-font-stream PDF embedded font (sfnt) at offset 0x103EB 11488 bytes