Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a7fa62fae6a230…

MALICIOUS

PDF

79.5 KB Created: 2021-03-20 19:17:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4b32ae6810c8468de8fb34bcc4bc833 SHA-1: 290016a1dc42a3be0ead6c68da2c59c43484fb7c SHA-256: 74a7fa62fae6a2303e1da955fbb4211812d128de07fde5413ea1aa7aac17f1e8
136 Risk Score

Malware Insights

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

The PDF contains heuristics indicating suspicious links and is flagged by a machine learning classifier and ClamAV as malicious. One high-severity heuristic points to an invisible link leading to 'http://lnstagram-support.live/lexedejerosanajelikogoo5xf.pdf', suggesting a phishing or malware distribution attempt. The presence of external URIs and the overall detection by multiple engines support a malicious intent, likely related to phishing or delivering a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://xajibur.ru/strik?utm_term=cual+es+el+titulo+nobiliario+mas+bajo
    • http://olipaka.xyz/diskdigger_photo_recovery_download_apkh6kmj.pdf
    • http://mediaverifiedbadge.com/91013207517qc01s.pdf
    • http://mailedflkf.site/comparative_study_designzhwh7.pdf
    • http://it50off.pro/sansa_clip_jam_manual3uah4.pdf
    • http://testrun.ru/keurig_2.0_carafe_setting_not_workingtnwsj.pdf
    • http://labiosdewonda.com/uber_driver_account_deactivatedvrm3m.pdf
    • http://mexicotop.xyz/badalujen02ns6.pdf
    • https://cdn-cms.f-static.net/uploads/4458125/normal_6024c0b950884.pdf
    • http://silkhfig.bid/what_is_moonlight_calledqcjac.pdf
    • http://lenudes.com/elgato_game_capture_card_softwareh13od.pdf
    • http://lnstagram-support.live/lexedejerosanajelikogoo5xf.pdf
    • http://azules.ru/metformin_500_mg_for_pcos8ks2x.pdf
    • https://static.s123-cdn-static.com/uploads/4497348/normal_5fc9f5e619d6a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xiwevitox/52295547640.pdf
    • https://uploads.strikinglycdn.com/files/e2b1f3af-5ab6-49d0-b2f1-6a3c77fb9093/54234942241.pdf
    • https://uploads.strikinglycdn.com/files/f6a4a349-3485-41ba-98f3-105a4c3e32f3/nolipujorunapawiruzorov.pdf
    • https://uploads.strikinglycdn.com/files/7eae2dd0-4ac6-4e23-813f-73042f0f1373/68473231777.pdf
    • https://s3.amazonaws.com/sixolose/icmr_guidelines_for_pregnant_woman.pdf
    • https://uploads.strikinglycdn.com/files/dd6c5e5c-5f85-4480-a4a0-ee59f2be5b47/margin_of_safety_formula_in_units.pdf
    • https://uploads.strikinglycdn.com/files/e363adac-d14b-4a56-88c5-ff2682252964/latebogavigagapa.pdf
    • https://s3.amazonaws.com/podawakumepewez/94415363808.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_off0000f873.bin
38470df09572e451dcb1091b7258c9d0e3daefd43d3dfe8438bcc295e1861894		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF873 4952 bytes
font_01_sfnt_off0001092f.bin
4a6b103c4544c72a816a44593ecb19c32514a92429c55d09e9e4dbfcc3b3f54c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1092F 12508 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.