Malicious PDF — malware analysis report

Static analysis result for SHA-256 00a09c0917cc5005…

MALICIOUS

PDF

76.5 KB Created: 2021-03-21 22:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 3b48e3a89e9e4fb388c0b6e253574dab SHA-1: a069f466c162018310184080c25677ac81840655 SHA-256: 00a09c0917cc5005156d1d1f60058f14760ad750041110d486a3f9651fbd02b2
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution via these links. No scripts were extracted, and the document body is heavily obfuscated, preventing a more detailed analysis of its specific content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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 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.
  • 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://seumenha.ru/strik?utm_term=2012+dodge+durango+sxt+awd PDF link annotation
    • https://webakutukulufu.weebly.com/uploads/1/3/2/6/132683024/6781307.pdfIn PDF document text
    • https://rinotawobuv.weebly.com/uploads/1/3/4/7/134768279/wizunewoponunij-fatukula-disedax.pdfIn PDF document text
    • https://vuzowukuz.weebly.com/uploads/1/3/0/8/130814197/tadinojaf_tewuf_gemosamu_puragijajalagaf.pdfIn PDF document text
    • https://tadomowiwelam.weebly.com/uploads/1/3/4/7/134744739/c25d8aebd5.pdfIn PDF document text
    • https://pudorexejuvaw.weebly.com/uploads/1/3/1/4/131455832/40d90d48.pdfIn PDF document text
    • https://vaxuzumop.weebly.com/uploads/1/3/4/8/134870956/tamanod_zesemadoladuw_sagemoba.pdfIn PDF document text
    • https://metogixum.weebly.com/uploads/1/3/0/7/130775033/ef1244593c0.pdfIn PDF document text
    • https://kesevaze.weebly.com/uploads/1/3/1/3/131383297/5580151.pdfIn PDF document text
    • https://dubuvolikumo.weebly.com/uploads/1/3/4/0/134012832/dozimope.pdfIn PDF document text
    • https://xijeruwenuvu.weebly.com/uploads/1/3/4/0/134018409/direzemizetax-doredew-bedage-bamofasujoki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://13adc596-845f-4f4a-b539-e2c04a0a4b5a.filesusr.com/ugd/6e2da7_59992ed06ec143569043aa5c7b2a11c2.pdf?index=trueIn PDF document text
    • https://238a82c5-85a8-4641-a991-2f0f5270ddc4.filesusr.com/ugd/63f22d_c9a3cc0c02b1478a9bb211a011ff31d2.pdf?index=trueIn PDF document text
    • https://a001dc82-f31e-4944-9b76-0a8e602b6855.filesusr.com/ugd/e4ee87_fcf4a4cfc39e4937ba597b67a43e60d5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/zesozavatizukunimudexenur.pdfIn PDF document text
    • https://3f5765b5-411c-4b28-96d1-a1e3b219bcee.filesusr.com/ugd/ca847e_2a0eb473a26f4dabb77891a7db6850a3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6ac650f-edfa-4c2b-b475-6ebcec4df954/how_many_points_can_you_miss_on_cdl_driving_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1052b5e0-79af-493a-9cd5-d4043e91c51b/woodchuck_chipper_wc-12_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/xezijakukasotiginu.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/non_religious_wedding_ceremony_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61f35f2d-b093-4e24-9b11-782ccdea977c/python_list_sort_key_len.pdfIn PDF document text
    • https://a7da3e60-63c8-46c1-a846-eab7df628ed2.filesusr.com/ugd/bba345_3ea6ecffa99c43ce9f227a415ccbcc14.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9fc2eb6-2c84-432d-aa5f-51f352787d1b/nebabomimigixiropofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b52e8833-7f85-4bfe-b295-573b14343d42/xubosetu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7B 5352 bytes
SHA-256: dea968de778c11177cbd009adb30d4ffe0f744724998d0e556b03ee46d848e7f
font_01_sfnt_off0000ffd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD8 10748 bytes
SHA-256: 8eab9c043a9ec485c305c947d369c36edec422391f6e1065c0cd64f8982af62f

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