Malicious PDF — malware analysis report

Static analysis result for SHA-256 205a7d9a73674b31…

MALICIOUS

PDF

80.4 KB Created: 2022-04-16 11:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: 7fbeaf16621cf2bde0258395a475fd37 SHA-1: d00b9a574875ae67163d5ac8e6992ffed9af0da8 SHA-256: 205a7d9a73674b31cc166c87b74bbe26cd6962634ad59752176e469f972d6075
226 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains a large number of external links, many of which are hosted on disposable domains, indicating a link farm designed to obscure malicious destinations. The 'SE_CLICKFIX' heuristic suggests the document instructs users to execute commands, a common social engineering tactic. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution via the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 7

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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://loheb.co.za/YmrXLWy8?keyword=how%20to%20open%20ms%20paint%20link PDF link annotation
    • http://focalthai.com/file_media/file_image/file/bibapume.pdfIn PDF document text
    • http://xlpe.net/Images_upload/files/gupijoxojo.pdfIn PDF document text
    • http://shinies.ru/img/lib/file/munutulenigugisu.pdfIn PDF document text
    • http://mintaialuminum.com/d/files/15011591048.pdfIn PDF document text
    • http://re-media.ru/foto/ck/files/jujutavogafejesezuwu.pdfIn PDF document text
    • http://africamusicindex.com/images/files/tugudikenipemowezu.pdfIn PDF document text
    • https://nevonanopovew.weebly.com/uploads/1/3/4/3/134335048/nidibagebufedita.pdfIn PDF document text
    • https://diwoxine.weebly.com/uploads/1/3/1/8/131872021/zazob_fupov.pdfIn PDF document text
    • https://jefevitekigo.weebly.com/uploads/1/3/4/5/134586767/9891355.pdfIn PDF document text
    • https://dekizojumuleje.weebly.com/uploads/1/3/4/1/134133140/disawulivimok_tolasaxuxat_pebebopumun_foxosurinamix.pdfIn PDF document text
    • https://gekefusali.weebly.com/uploads/1/4/1/3/141398863/kawogavade-suvagivozam-wobovozokum-japodazawora.pdfIn PDF document text
    • http://indexone.ru/upload/file/bimuwudutudu.pdfIn PDF document text
    • http://palirna-frydek.cz/uploaded/file/35434179654.pdfIn PDF document text
    • https://wasinipexo.weebly.com/uploads/1/3/4/3/134362371/7108629.pdfIn PDF document text
    • http://smelawservice.com/file_media/file_image/file/tedevabumetozemotur.pdfIn PDF document text
    • https://dolujutizividev.weebly.com/uploads/1/3/4/8/134864897/e16509836229e09.pdfIn PDF document text
    • https://bemebedutor.weebly.com/uploads/1/3/4/6/134624352/risubameje.pdfIn PDF document text
    • https://pupurisozidoge.weebly.com/uploads/1/3/4/7/134742187/8ab99.pdfIn PDF document text
    • http://iscyber.com/userfiles/file/83083697511.pdfIn PDF document text
    • https://rujumimipadud.weebly.com/uploads/1/3/0/8/130874091/3849589.pdfIn PDF document text
    • https://noihoithanhtuan.com/media/ftp/file/rasuvujolefewaxiso.pdfIn PDF document text
    • http://gsmontaggi.it/userfiles/files/patikem.pdfIn PDF document text
    • http://etiquettes-adhesives-bobine.fr/kcfinder/upload/files/75146876851.pdfIn PDF document text
    • https://wukuvapover.weebly.com/uploads/1/3/4/8/134878379/252344.pdfIn PDF document text
    • https://bonadamoge.weebly.com/uploads/1/3/4/0/134000068/e017d736de89ccf.pdfIn PDF document text
    • http://baliretreatcenter.com/olabali_ci/media/images/newsfiles/43998519610.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000d606.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d606.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD606 17184 bytes
SHA-256: dd894aad22d505b4477758f349a8990ef4ce14b66d6d5564fb706ff7731337fb
font_01_sfnt_off00010301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10301 10480 bytes
SHA-256: ad13d2b1447bf4a7a86ab75a4c67c4e76aa4291b65723ed92d062997d34ddaa0
font_02_sfnt_off00011ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11ADA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1