Malicious PDF — malware analysis report

Static analysis result for SHA-256 14608adaea7f48b5…

MALICIOUS

PDF

64.8 KB Created: 2021-02-18 13:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f8a0a8f083a18ad2aabc6458c05b1d0b SHA-1: 5fb90bb928181dafc030779fca7a3274c03db724 SHA-256: 14608adaea7f48b5c6f633a947071a94f507f447413e9adfa01b6821a8e6b1bb
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/aws?utm_term=crown+xti+1002+review PDF link annotation
    • https://cdn.sqhk.co/zerumowo/hgNsDha/vixalureremuloj.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwopaperuv/shahdhb/total_conquest_hack_version_java.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489061/normal_602d2457976d4.pdfIn PDF document text
    • https://cdn.sqhk.co/fuludasowipu/Hlqhchc/english_premier_league_store_london.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488566/normal_60050aab3ea58.pdfIn PDF document text
    • http://xtreme-sport.ru/qc_microbiologist_interview_questions_and_answersk4kat.pdfIn PDF document text
    • https://cdn.sqhk.co/wapogade/hdiaghI/dajul.pdfIn PDF document text
    • http://deutschebank-meine.com/airplane_pt_2_bts_free8m9np.pdfIn PDF document text
    • https://cdn.sqhk.co/xetajikok/bigwhbf/19212538308.pdfIn PDF document text
    • http://centerverifybadge.com/fodadil3nps.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410207/normal_5fd162111b8d2.pdfIn PDF document text
    • https://cdn.sqhk.co/dopiporajen/07jqpI4/42478148912.pdfIn PDF document text
    • http://ezfix.asia/21621237400dtj2z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421787/normal_6002bab6df608.pdfIn PDF document text
    • https://cdn.sqhk.co/dopuwene/egd0V0M/33905511444.pdfIn PDF document text
    • https://cdn.sqhk.co/kafexobesa/5Nhchbi/41163234762.pdfIn PDF document text
    • https://cdn.sqhk.co/serojimo/hcJhck1/irish_war_of_independence_account.pdfIn PDF document text
    • https://cdn.sqhk.co/fimirexuf/ggjeYhc/ironite_for_trees.pdfIn PDF document text
    • https://cdn.sqhk.co/figesuweno/deUij3L/tuwupukipajojorisodamug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zuses/45971588089.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/nakixas.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6B9 4616 bytes
SHA-256: c6a33c83d18764bc5ea8e27daa3850793062fe750c053e44ae94145a21fac01e
font_01_sfnt_off0000c68e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC68E 9764 bytes
SHA-256: b40c96d606ce2fae2834a0619d0ba95e5b926ea17abe60a1047f8d4e90597306
font_02_sfnt_off0000e7fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7FC 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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