Malicious PDF — malware analysis report

Static analysis result for SHA-256 a43f89678685632f…

MALICIOUS

PDF

79.3 KB Created: 2021-05-16 13:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 32bcb9da893c76f0e399f95f473769e0 SHA-1: 7d94731f53e061bf70bb6a6f4794d9c2636e6d18 SHA-256: a43f89678685632f053149182d5c545be174b2380df74418b3c42587e8d393b2
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a link farm, with one primary malicious URL. This suggests the document's purpose is to redirect users to potentially harmful websites, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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.
  • 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://dugedepap.ru/strik?utm_term=lowrance+elite+7+ti2+dimensions PDF link annotation
    • https://zepofujokedab.weebly.com/uploads/1/3/5/3/135315754/bovibukiradug.pdfIn PDF document text
    • https://rutemaja.weebly.com/uploads/1/3/1/4/131438840/kidojesa.pdfIn PDF document text
    • http://texuxetikarobu.iblogger.org/78900007194.pdfIn PDF document text
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/wererodataba.pdfIn PDF document text
    • https://voximarabot.weebly.com/uploads/1/3/1/3/131383255/dbc49a6bffc3.pdfIn PDF document text
    • http://wijalejumodu.22web.org/how_to_see_all_stocks_in_nse.pdfIn PDF document text
    • https://makezuxakoje.weebly.com/uploads/1/3/0/7/130739015/3b7b4cb99b9dd3e.pdfIn PDF document text
    • http://nawabopebi.iblogger.org/gunilemidoxobe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://73e25548-3913-4bbb-aa69-a1b25f69568d.filesusr.com/ugd/cece23_e1ea6c060cc745c58e5503191b224833.pdf?index=trueIn PDF document text
    • https://cdfb6f36-dde2-4af5-b3b7-55ff39976061.filesusr.com/ugd/c6ac46_1fe419d946474f089b3540d972f12eda.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/woxotopapozokev/zepakeber.pdfIn PDF document text
    • https://3e021c9a-284a-4c54-9ba1-f6d43d4d2ba5.filesusr.com/ugd/a619af_cf1173334c124ae09bbf331af3bb1d62.pdf?index=trueIn PDF document text
    • https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_c97f99f2d4aa49d6a3e0fd477b7cd442.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wujixus/54175439829.pdfIn PDF document text
    • https://78f5967e-1348-44d0-b43d-4fba71d4c3e7.filesusr.com/ugd/a94f6a_dd17a4fa02664872a2a5d492b7b894b9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/counting_forward_worksheets_grade_2.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/51519230596.pdfIn PDF document text
    • https://bcd7deca-fd5d-492b-a220-d373ca515bc9.filesusr.com/ugd/12f4eb_61dde65ca90344d4b8c430ffc4afe4ce.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bomupi/pokalewenuvikoganukibani.pdfIn PDF document text
    • http://xoxemofunox.epizy.com/punovareli.pdfIn PDF document text
    • https://s3.amazonaws.com/dikomavomem/pretty_little_liars_season_5_episode_1_full_episode_free_online.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/terajodugaredaloxowosejop.pdfIn PDF document text
    • https://0cfe495c-9a5f-46a1-a5f3-fb21b6211bac.filesusr.com/ugd/7aabb2_26f35df7aebe4659bc434315276b113c.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AA 5332 bytes
SHA-256: a82686695b9d20d75c0917b44997b19ad94adb2ef94b9f420ab88dfb99a0c343
font_01_sfnt_off000105cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CB 11908 bytes
SHA-256: 954bfdd040c90c43d1931cc7d87800f0931eba87f175f32a88e8124f380d014c

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