Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1b2714501a9e94…

MALICIOUS

PDF

104.4 KB Created: 2021-03-22 13:59:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3da875ca43eb95f886422a1dc32152d SHA-1: 28b0a94e31f62326cfc8a9119559db36ae631da2 SHA-256: be1b2714501a9e948861ed83c822f67c6096d69b3d687c6485ed23b06cafec70
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It contains a large number of external links, with the primary suspicious URL being https://lozipotod.ru/123?utm_term=exo+cbx+blooming+days+full+album. The presence of a link farm suggests an attempt to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/123?utm_term=exo+cbx+blooming+days+full+album
    • https://kakejomoweva.weebly.com/uploads/1/3/4/6/134674311/wogiken.pdf
    • http://vevapefin.sportsontheweb.net/brand_positioning_examples.pdf
    • https://befugusugub.weebly.com/uploads/1/3/2/6/132683140/towudof.pdf
    • http://sadeseta.iblogger.org/94196525281.pdf
    • https://bufuduvo.weebly.com/uploads/1/3/0/8/130874305/7139330.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://b67fa923-03b4-4d21-b555-95ff628d7525.filesusr.com/ugd/1d4b90_42e425cab3b34073b5dbad105bbe2952.pdf?index=true
    • https://8458b573-1d6d-478c-912c-b10a972f31df.filesusr.com/ugd/150112_f728552969a542a79bb609861e3f8e87.pdf?index=true
    • http://xenemusexo.epizy.com/35479691714.pdf
    • https://13fad4bf-7224-44b3-802b-16842e97d241.filesusr.com/ugd/b14664_881d053cb1974d88993f0cec63ec549e.pdf?index=true
    • https://8eeb1f0a-0cdd-4c66-98a4-83777b49fb54.filesusr.com/ugd/64f9d2_52b72755d43f4d38bd6d215df3b02540.pdf?index=true
    • https://cae2aa39-5014-47ec-b549-0fed73f36d02.filesusr.com/ugd/c8683e_5969e99d3e7d4593ac9f9353c29334b7.pdf?index=true
    • https://80f75f89-a1e3-4611-a0ef-7a704eb82da9.filesusr.com/ugd/0286dd_2a89a48573fe43d1b553327b02dc612a.pdf?index=true
    • http://zulolabopel.myartsonline.com/automobile_engineering_lecture_notes.pdf
    • https://f72e0e13-a873-49c5-9cb5-3c2848b8c5b2.filesusr.com/ugd/f8ba4b_c94122627cd5491f979856d7bf47127c.pdf?index=true
    • https://315736c7-1030-4200-8d24-05c9f4951019.filesusr.com/ugd/d19ca0_99fecb7b3d514d8492ac7bc4171b37ab.pdf?index=true
    • https://69f1164a-dcd3-4310-9fb4-3b67f03bdbb0.filesusr.com/ugd/9d7282_6bae4d85d039446a8c89ddff41607fc2.pdf?index=true
    • https://cd29ef07-728f-4a0b-b57b-23e770395c36.filesusr.com/ugd/f14cf6_06cff9566c484347bdbc522689fe249d.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f394.bin
eedc762b84594076f588c9af8dcf4057de9a6873ee3dc71c84a4e8479fec99f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF394 28788 bytes
font_01_sfnt_off0001443e.bin
75de52fda1936973da53597c1b4078858765c38cd06a7bf84830368b6ce60968		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1443E 5512 bytes
font_02_sfnt_off000156fa.bin
be0764a64aeb52ba0d2afadccc6462941c3a1fbf206f9b87c68721a55d8b92ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x156FA 11304 bytes
font_03_sfnt_off00017d66.bin
e02432191d952bf4ca0be4cfeafc10308785ce9d9f3781c3262e4e8a73b31f63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17D66 16060 bytes

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