Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e565e3561d1378a…

MALICIOUS

PDF

50.1 KB Created: 2020-10-15 20:31:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b4dd59c8d3467bacd52564edebb53d89 SHA-1: f10369f351d56aae078a6846a0ba7ce762e0118a SHA-256: 5e565e3561d1378aa6df97462641bb7baae5d6f6f98f7bc7037cd6a4d0e190ac
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.
  • 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://ggtraff.ru/123?keyword=download+game+treasure+defense+mod+apk In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
    • https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/5041229.pdfIn PDF document text
    • https://buluzuzumaz.weebly.com/uploads/1/3/1/6/131636727/firija.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/sokilijaw.pdfIn PDF document text
    • https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/4985242.pdfIn PDF document text
    • https://site-1042555.mozfiles.com/files/1042555/wapking_bollywood_instrumental_ringtone.pdfIn PDF document text
    • https://site-1039259.mozfiles.com/files/1039259/13647833666.pdfIn PDF document text
    • https://site-1048536.mozfiles.com/files/1048536/75844179936.pdfIn PDF document text
    • https://site-1045368.mozfiles.com/files/1045368/zezegi.pdfIn PDF document text
    • https://site-1037172.mozfiles.com/files/1037172/rukirutamuj.pdfIn PDF document text
    • https://fulipevaxavu.weebly.com/uploads/1/3/2/6/132695351/e4e04ccb83ff3.pdfIn PDF document text
    • https://vekejuritikoj.weebly.com/uploads/1/3/1/8/131857631/5199022.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/0c18874847f.pdfIn PDF document text
    • https://worobewunit.weebly.com/uploads/1/3/1/4/131406731/zugisu_joxupijosog_tukexexa.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
    • https://wovasemuzusalej.weebly.com/uploads/1/3/1/6/131636629/jogikozidonedozefu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6765/7371/files/google_drive_pet_sematary_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6317/1485/files/path_of_exile_no_sound_driver_detected_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5597/0984/files/75502051100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e8cf101-9e48-4497-8ade-48731d4f1b94/59715664621.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02bfae3f-64e7-49a7-a5bc-a7f003e02341/25980411170.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48c279ce-230e-4592-acdf-696d901e94fc/bijalumasobiterusuka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c034c3a-0141-4891-802b-82f6b4abd626/zasunol.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0E 5516 bytes
SHA-256: e1b250955ba299ae83f6b73301c6cdc724410355a33a23923f31bd517af0ceb6
font_01_sfnt_off000080d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D2 10592 bytes
SHA-256: 269e7004897ada1a634c3996934704bbb3f44a1a320fe91d77c00a871370bd39
font_02_sfnt_off0000a53e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA53E 16160 bytes
SHA-256: d2619b9a2a7dec81ecbbf05c496b7f5492bc56d5eefc2cd48183daaf603cb6ac