Malicious PDF — malware analysis report

Static analysis result for SHA-256 1322a9126a9e30b4…

MALICIOUS

PDF

151.6 KB Created: 2021-06-10 00:01:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 077d31160384e160340345aea23d1681 SHA-1: 91bbd2320095690ddc0125ff823f8c725e24c406 SHA-256: 1322a9126a9e30b41268dc41d4a1c840d94fa23a2e7cb04afcac46280ac93f75
126 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9437

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 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://smidgel.ru/pbw?utm_term=veer+zaara+full+movie+with+sinhala+subtitles PDF link annotation
    • https://dosoxikovere.weebly.com/uploads/1/3/0/9/130969917/f3c73a945a8.pdfIn PDF document text
    • https://xewidepomizexas.weebly.com/uploads/1/3/0/7/130775014/wovesuwev.pdfIn PDF document text
    • https://wivevesatowot.weebly.com/uploads/1/3/0/8/130813399/zofeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461485/normal_60126b0188d8e.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4373243/normal_60afe47bbdf62.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.indictrans.orgIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://wipadewor.pbworks.com/f/jitoviletam.pdfIn PDF document text
    • http://pakesobiroge.pbworks.com/f/pearson_btec_health_and_social_care_revision_guide.pdfIn PDF document text
    • http://wijozuzapusa.pbworks.com/w/file/fetch/144772368/35665295160.pdfIn PDF document text
    • http://mujusevo.pbworks.com/f/genshin_impact_kamisato_ayaka_ascension_materials.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f4c29a-b710-42db-a543-7d0dbd46b119/daxamavejut.pdfIn PDF document text
    • http://xozojonurom.pbworks.com/f/xewekiposegemap.pdfIn PDF document text
    • http://mawasuwov.pbworks.com/f/94165632559.pdfIn PDF document text
    • http://fisojun.pbworks.com/w/file/fetch/144821409/jevopudosuwafegovobej.pdfIn PDF document text
    • http://sinorodolu.pbworks.com/w/file/fetch/144481059/acura_tl_type_s_manual_transmission_cargurus.pdfIn PDF document text
    • http://nuwiwaweber.pbworks.com/w/file/fetch/144992826/wagixu.pdfIn PDF document text
    • http://vafobotigef.pbworks.com/w/file/fetch/144679350/19556321602.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b83056b-3b78-4ae5-b275-ced70bfa97e6/magnum_x5_airless_paint_sprayer_specs.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 15

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_015_off00021b4d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x21B4D 18892 bytes
SHA-256: 2f0f80db9e8871d083fdcf24edaea7760edc574062ef06e3d78c75733e5b8771
font_00_sfnt_off0000f322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF322 7916 bytes
SHA-256: 2e595141cfc5a730015d867094056734cd151f5b215480bba884d522f17c5808
font_01_sfnt_off00010782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10782 4032 bytes
SHA-256: 9440f71eefa4f59c7a71b16fb0b9f65724f2db68f71ee41650680a98f027c4b0
font_02_sfnt_off000115f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115F3 5312 bytes
SHA-256: a58ebce10ae0a65038dffa05589022598d27c638ea9c4df313e850cc84ed3e37
font_03_sfnt_off000127f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127F9 2656 bytes
SHA-256: ff8289fcab20b7b81f5dc7c47458689637225d7099c48932a46d6898d6123f6c
font_04_sfnt_off000132fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132FE 4140 bytes
SHA-256: 2a2f73c0ee504ae8509221dab9a50e72e6c400a18e3952d3eee660ba18a0c3b1
font_05_sfnt_off0001401b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1401B 3048 bytes
SHA-256: b5c6b6e0c9ada0bf1c6b02372d38a6194b0fc304f51b15768a03b7bd417def48
font_06_sfnt_off00014c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C2A 2328 bytes
SHA-256: 18b250f24057ce91e4a59b25c1eec79fa8b4d7e2cb9f6c0de02c7e032a072fd4
font_07_sfnt_off000156a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156A2 44172 bytes
SHA-256: 0bed4dcc87129de788c51da87a058b760e852a447d0fa29ce6a8de72045d1068
font_08_sfnt_off0001b586.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B586 2604 bytes
SHA-256: 5fd53e2058c4f5d98b70161d670f1e42036942552fef68ac845a5e47e2d7f715
font_09_sfnt_off0001c0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C0A9 2108 bytes
SHA-256: 5fc9e2cd4e7ad04544edda2023dd698132b65daf167a61e09de9fd8de66d8b52
font_10_sfnt_off0001ca87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CA87 4336 bytes
SHA-256: 87016e8933cc862d1d188edfbee698abcff8178ed3d6b510b61737ee02f60284
font_11_sfnt_off0001d827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D827 6148 bytes
SHA-256: 488ffee5e9c33bcc1f3f00aec749f35977d0cdd209ffadaee35194d66ecc177d
font_12_sfnt_off0001e811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E811 17548 bytes
SHA-256: d4cb0f361072e3b8158955982c9847b52d438b143381ff3048da2beb14fd5af1
font_14_sfnt_off00023aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23AAF 3536 bytes
SHA-256: 0a763f02db1d1c5d34f23894b7a4af96ea2433ab124f48894d552220baaa19fc