Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed6af6114dae022…

MALICIOUS

PDF

104.0 KB Created: 2021-04-29 11:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8851af75e9a75384d791d097e2fbeca7 SHA-1: 3f088555eeedf42e8f8c3a69179b8714df15c9cf SHA-256: 2ed6af6114dae02205b8824a0fcf2f2aae13a05ec47f4a576ef7f394b2959528
146 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a callback phishing lure, prompting users to call a number for fake issues like billing or fraud. The embedded URL points to a domain associated with such scams. While no scripts were directly extracted, the nature of the PDF and its embedded links suggest it's part of a phishing campaign, likely delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://bologen.ru/strik?utm_term=how+to+beat+flir+camera PDF link annotation
    • http://youtube-subscribes.com/dsc_1616_partition_programmingzwsha.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421056/normal_600e927fa54a8.pdfIn PDF document text
    • http://fujigukatujewu.medianewsonline.com/hp_pavilion_dv6000_charger_problem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461773/normal_5fcd0af66263f.pdfIn PDF document text
    • http://easycreditscore.info/fojudivegibq5msj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499979/normal_5ff414de2523b.pdfIn PDF document text
    • http://tajuliwelofiti.medianewsonline.com/39198200675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379961/normal_60172061763d8.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://uploads.strikinglycdn.com/files/513ecb38-ebe5-42e7-a998-2f81f3defcbb/zawumoxejatipazeredeje.pdfIn PDF document text
    • https://091a8774-b5bd-4fb7-8799-8d1ca0ca44ad.filesusr.com/ugd/8716ab_ea5af249cc7c4049b3ee2303b3c22eee.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bejokazemur/81195544972.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/kudezebobomebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/130f756d-fac7-4347-9ec3-88118e745d91/5796816331.pdfIn PDF document text
    • https://4a7d9d2b-1d67-446c-8d6d-bdd3043d1f60.filesusr.com/ugd/c3d078_37c5a6929b3d4326b7aaafc80c42ad5e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/feb32385-c2b6-4468-907c-ec35c5c42623/14615120348.pdfIn PDF document text
    • https://01c19f78-c7d0-441a-b56a-8672493f87de.filesusr.com/ugd/9d66c7_a4222bb27c584577af08366dc4d71e73.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2c8e1f2-8fa0-4041-ac2e-3284d777b4b4/baxobediwodoripo.pdfIn PDF document text
    • https://a1d1c4ac-cf1d-4c58-861c-45d1188f4b60.filesusr.com/ugd/052f3a_b6d4ac3682f94d368a30f5cf98fd6ffc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/54052e25-7f4b-476a-a233-20db4b1ae651/old_dungeons_and_dragons_modules.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/ca_va_bien_et_toi_answer.pdfIn PDF document text
    • http://korofituzuxigu.onlinewebshop.net/algebra_2_textbook_california.pdfIn PDF document text
    • http://woranuganavot.myartsonline.com/easy_adirondack_chair_plans.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/8000612174.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14DCF 4724 bytes
SHA-256: 7eee7ae78403b5298550e9c53fc66a5b9e782a9c534bd2fabeb5404dc23e3db7
font_01_sfnt_off00015dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15DEC 11648 bytes
SHA-256: 36d31016ed2c9a4db9910ff38ed3df94e9df9759419a4c4e4488fb6d0251de1f
font_02_sfnt_off000185a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x185A6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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