Malicious PDF — malware analysis report

Static analysis result for SHA-256 38102eeedce9467d…

MALICIOUS

PDF

80.4 KB Created: 2021-03-07 19:54:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: b43dcebe0ac862344217c97a14b3bb31 SHA-1: d67dee6084f12f99900665f368bf95dcdafae6af SHA-256: 38102eeedce9467d30d771f8600c6c94a81db2ea44d20c18a3ca66b37cbf9371
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ML classifiers and ClamAV. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. One of the embedded URLs, 'https://fokemale.ru/strik?utm_term=moto+g6+back+glass+replacement', appears to be a redirector. The document's structure and content indicate it's designed to exploit users by directing them to potentially harmful or misleading websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://fokemale.ru/strik?utm_term=moto+g6+back+glass+replacement PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383156/normal_6011b46924207.pdfIn PDF document text
    • http://siwupezomejen.getenjoyment.net/zevarare.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopaji/exidVYu/53830048827.pdfIn PDF document text
    • https://cdn.sqhk.co/woxiwovar/dijCvco/3148164460.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383470/normal_60210a1a6f9a4.pdfIn PDF document text
    • http://basumoxivor.sportsontheweb.net/how_fast_does_the_honda_talon_1000_go.pdfIn PDF document text
    • https://cdn.sqhk.co/gowexenopa/fghF2jb/die_abenteuer_des_jungen_marco_polo_folge_26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388181/normal_600d4eb5a623a.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/fXZSIyu/nudekatidowezu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443342/normal_6032efc2372db.pdfIn PDF document text
    • http://bipowilago.mywebcommunity.org/q_see_security_camera_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/tjhhhcc/download_zombie_gunship_revenant_ar.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/gwJ8Igj/93511079420.pdfIn PDF document text
    • https://cdn.sqhk.co/xagaxubibiz/6rbicja/76264673498.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://f238abdf-92e3-4651-90df-65b6e8a648d9.filesusr.com/ugd/99965f_023354ca3572404ebf35f72b3e943c29.pdf?index=trueIn PDF document text
    • https://ef5e9b3f-1a8e-4c79-9b60-34b8f8133c96.filesusr.com/ugd/18574e_cdc0de4281c5493990f767db7a37984c.pdf?index=trueIn PDF document text
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_ccc6b923ad76466f989e355554aed3a8.pdf?index=trueIn PDF document text
    • http://matewedidoxeber.onlinewebshop.net/lg_g_vista_2_battery_replacement.pdfIn PDF document text
    • https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_344b1e23875744699877891e4495c72b.pdf?index=trueIn PDF document text
    • http://taroveruwidiba.onlinewebshop.net/78878813170.pdfIn PDF document text
    • https://5e6d3f51-9b35-4a29-baf4-1f036254a461.filesusr.com/ugd/99a8f2_f9f7fe8ea8324b1eb2589ac474c6735a.pdf?index=trueIn PDF document text
    • https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_1a2f00e5fee04ba7b80184dee0121715.pdf?index=trueIn PDF document text
    • https://f904ef53-caa1-4f0f-8a97-c50675c03ece.filesusr.com/ugd/2f8cea_7483b81ff40a47df83ade32598905bd0.pdf?index=trueIn 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_off0000ef7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF7F 5356 bytes
SHA-256: 60c6b6019da4b927b53d23391dc0bd61fae7fa00594af5c8f47419cf7f8132e2
font_01_sfnt_off00010199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10199 10488 bytes
SHA-256: 279144feade3bf72021ba35ca457e732c7115da157fb1f49b6e4b9a921ec9344
font_02_sfnt_off000125ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125AE 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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