Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd7d5b7bb4f100ac…

MALICIOUS

PDF

91.9 KB Created: 2021-04-06 12:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2f14819282610f0e9eb80853c28053a SHA-1: 7e9879ec3a5e6dc2e5e6401748db3e259c9b0c0e SHA-256: bd7d5b7bb4f100accba6c4351c5f53ac0c252d0ed082afd8c078bb81cbafefb8
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for phishing and scams. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic strongly suggests the document's content is designed to trick users into believing they will receive a prize or funds, which is a hallmark of advance-fee fraud. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and link farm indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://botokaw.ru/123?utm_term=adjudicator%2527+s+field+manual+extraordinary+ability
    • https://cdn-cms.f-static.net/uploads/4481067/normal_602fac5cebc1b.pdf
    • https://static.s123-cdn-static.com/uploads/4420224/normal_5fff6af5e2009.pdf
    • https://cdn-cms.f-static.net/uploads/4491927/normal_600fa00030b27.pdf
    • http://gimemuwet.mypressonline.com/track_and_field_rules_and_regulations.pdf
    • https://cdn-cms.f-static.net/uploads/4457570/normal_602d9536141a7.pdf
    • https://static.s123-cdn-static.com/uploads/4497359/normal_5fdffe5659f3b.pdf
    • https://cdn-cms.f-static.net/uploads/4367680/normal_6015e63a3f46d.pdf
    • https://cdn-cms.f-static.net/uploads/4447460/normal_604fe92fc2230.pdf
    • http://dafagaketa.sportsontheweb.net/79147167909.pdf
    • http://zujugowez.iblogger.org/why_are_my_logitech_speakers_buzzing.pdf
    • https://cdn-cms.f-static.net/uploads/4458412/normal_60118a03ef10b.pdf
    • https://static.s123-cdn-static.com/uploads/4427504/normal_5feb5ae2bd6e9.pdf
    • http://jedusajinud.mygamesonline.org/941204981.pdf
    • https://cdn-cms.f-static.net/uploads/4419644/normal_604dc8b259383.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://14319df0-7947-4f0d-bbb3-eaa17d5eb23e.filesusr.com/ugd/c45f38_fd38003a8398475b819131e4c3f3d24b.pdf?index=true
    • http://rogomore.myartsonline.com/toto_africa_piano_sheet_music_free.pdf
    • https://288c7b4b-0494-48f6-8ee2-9dd519b96b0a.filesusr.com/ugd/a107db_aa31f0a26cd54691b0179e42d9ca14c9.pdf?index=true
    • https://s3.amazonaws.com/fajixe/75834392294.pdf
    • https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_35f7e3a3e3bd49bf89903f6e96f63230.pdf?index=true
    • https://d1b33a7b-cde1-45d4-bc15-d4d3b6236ac5.filesusr.com/ugd/1d64af_82d4140900e7446dacc1abe44ac2aa18.pdf?index=true
    • https://s3.amazonaws.com/jovekus/awadhesh_premi_video_song_mp4.pdf
    • https://cc968bdf-8a18-4a65-a72d-893c706ef441.filesusr.com/ugd/bae363_b4e72be339234c2091cdde2b3be8e407.pdf?index=true
    • http://juviwutifazav.rf.gd/lennox_pulse_furnace_age.pdf
    • http://lagadasisipas.rf.gd/workday_company_information.pdf
    • http://fikenojidukozo.rf.gd/fasavebenunimogeteke.pdf
    • https://s3.amazonaws.com/mawesenasijoser/ramenif.pdf
    • http://ruxazek.epizy.com/nujokomoxeretarudexeje.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_off0001276a.bin
65f1ec0447aca1cdf0166388d1335acc665ba36ec6484f597ce15c2f00f50d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1276A 5576 bytes
font_01_sfnt_off00013a63.bin
c61a91e0e4e3175c7302620dac7a053065f66333654d7f44564a2b2581e576f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A63 10988 bytes

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