Malicious PDF — malware analysis report

Static analysis result for SHA-256 127fb23039203881…

MALICIOUS

PDF

127.6 KB Created: 2021-03-14 11:29:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f69f036c54789c0cc385afdab231995 SHA-1: a1612d781f5070797b7e87797f298cdc6c067e2b SHA-256: 127fb23039203881d3ef0cd9915ef8efc31cea2db34ce5f16fd5efa24233dab3
136 Risk Score

Malware Insights

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

The sample was identified as malicious by ML classifiers and ClamAV, with heuristics indicating an advance-fee scam lure. The embedded URL `https://nipisod.ru/wix?keyword=guide+65+sport+expiration` likely serves as a redirect to a malicious payload or phishing page. Although no scripts were explicitly extracted, the PDF format often utilizes JavaScript for malicious actions, hence the inclusion of T1059.007.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://nipisod.ru/wix?keyword=guide+65+sport+expiration
    • http://thechambre.xyz/how_to_fade_between_clips_in_premiere_prodonuw.pdf
    • http://creditinquiry.info/nudokonirinirapupujvupcr.pdf
    • http://o-karte-kopilka.com/79284846074z4tup.pdf
    • https://zokolukesowi.weebly.com/uploads/1/3/0/7/130776120/koragesusevamumun.pdf
    • http://naturaitalia.space/iadt_guidelines_primary_teethmt1ir.pdf
    • https://borubonaxufiza.weebly.com/uploads/1/3/5/3/135318051/vujozalasax.pdf
    • https://paninopuj.weebly.com/uploads/1/3/0/7/130739529/xazizupewofo-wevodifek-bukaxopedodar-mugodulipopabof.pdf
    • http://cosmeteca.com/zufamumezoxiwifaxeromewiov3cy.pdf
    • http://labiosdewonda.com/introduccin_al_anlisis_de_circuitos_boylestad_10_ed41x6d.pdf
    • http://insta-sale.site/jimusovanorurp3q.pdf
    • http://varistop.site/onn_50_inch_tv_manualecpb6.pdf
    • http://boevoenlp.com/jixozky4jh.pdf
    • https://dadekojulaza.weebly.com/uploads/1/3/4/3/134320805/jedizejelanu-muzawelus-botoba-motimerexib.pdf
    • http://rekatilugo.iblogger.org/kenmore_front_load_washer_will_not_turn_on.pdf
    • http://cucoupon.info/calcutta_university_online_form_fillupb5fc8.pdf
    • http://lozhobelir.space/ccrt_compendiumebps0.pdf
    • http://italiabeach.space/autorretrato_sin_mixcm1t.pdf
    • http://pozerebidilu.iblogger.org/what_is_critical_thinking_skills.pdf
    • http://verification-help.com/the_crown_cast_season_4_episode_2y9st8.pdf
    • http://usersdeviceprotectionservice.site/fipedirazutoxikigizln886.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pidosowot.epizy.com/95520905473.pdf
    • https://s3.amazonaws.com/tobojelusiwi/jazulaxakibadivatonowusul.pdf
    • http://robefopatobut.epizy.com/dimededifogepabugajaj.pdf
    • https://s3.amazonaws.com/zobuwubedak/rolejawafemevinak.pdf
    • http://besinaxot.epizy.com/27138630272.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_off0001b76e.bin
4373b792802c9aeace6f00767d06d8f04a96979f674147956eb6ce9aefe2268a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B76E 5300 bytes
font_01_sfnt_off0001c98a.bin
9cf821864063fc5cbdbe4a3dea5077e742a30f10bde577ae9f9e6bb5733257f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C98A 11452 bytes

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