Malicious PDF — malware analysis report

Static analysis result for SHA-256 1294e07fcb9730c9…

MALICIOUS

PDF

159.0 KB Created: 2021-04-02 23:43:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0abba7138ce562ccd452d7a1d637170a SHA-1: baa8a5dab3ab2e53cfd5cd03f4b484330e14d19c SHA-256: 1294e07fcb9730c94f9c3c0afc75d4e8b02bace601aeea3d1ce1e92ebd4d8d97
134 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, including one pointing to 'baarspo.ru', and a heuristic indicates a deceptive download button lure. The presence of embedded URLs and the overall structure suggest an attempt to trick the user into downloading a secondary payload or visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9644

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://baarspo.ru/123?utm_term=dappu+srinu+ayyappa+bhajana+songs+free
    • https://cdn.sqhk.co/xelalizogim/cjbb5rv/new_cyberpunk_2077_countdown_gameplay_2020.pdf
    • https://cdn-cms.f-static.net/uploads/4445745/normal_6014614785ef1.pdf
    • https://cdn.sqhk.co/lilaxikixo/eJ9tghs/ai_gallery_download.pdf
    • https://cdn-cms.f-static.net/uploads/4377101/normal_6044d170d85a1.pdf
    • https://cdn-cms.f-static.net/uploads/4386593/normal_5fe750140c3bb.pdf
    • http://dfds.in/kotor_2_trouble_with_cannoks7pmrp.pdf
    • https://cdn.sqhk.co/nenoserod/jRSiiia/81762801389.pdf
    • http://shopsupergood.site/percy_jackson_book_2_pagesf52iz.pdf
    • https://cdn-cms.f-static.net/uploads/4503387/normal_6051134d5a2ee.pdf
    • http://bestsaleshopin.xyz/soccer_ping_pong_drill63ni6.pdf
    • http://nicepics.xyz/pbs_video_app_windows_10d2zwa.pdf
    • http://www.opentle.org
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_325c90ec9dde40b183f11855e1741f26.pdf?index=true
    • https://f200304d-316b-45a9-b05c-680123ec6d1a.filesusr.com/ugd/aad1a2_7e2d3998b46a4a4ea032d1326ffe0e1a.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6832e400-84c4-4565-a579-55b385da18cf/taco_bell_chicken_power_menu_bowl_calories.pdf
    • https://uploads.strikinglycdn.com/files/d64c52cf-70bd-4329-8c14-f2ff3746f1bf/dojekoximi.pdf
    • https://uploads.strikinglycdn.com/files/219c26fd-aa4a-4a80-9f93-3984d9166a15/how_to_find_total_angles_of_polygons.pdf
    • https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_4edf360fdc9349a7a4bd2b14563f8a34.pdf?index=true
    • https://f39f7cea-6337-46de-af4f-699959e6db0a.filesusr.com/ugd/004672_7bf561da0e404e5b886769de5616a7ef.pdf?index=true
    • https://aece7fbc-7072-4055-9cfa-29e0da41b620.filesusr.com/ugd/e878fd_f334c51adcf6438b981714a2a430590c.pdf?index=true
    • https://d1159ab4-cbf5-42eb-897b-83a5e94cd7da.filesusr.com/ugd/536122_b15596a635f44ab28639350cdabc3d65.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://www.gnu.org/licenses/gpl.html
    • http://scripts.sil.org/OFL
    • http://sinhala.sourceforge.net/
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITS
    • http://www.gnu.org/licenses/gpl-2.0.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0001fafa.bin
e41ef082e3428b02574f30cf7ea5171f0137aa822fd93d9c4336b94dc4129e50		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1FAFA 10616 bytes
font_00_sfnt_off0001720e.bin
c8852171411f955aab5ae78425ca6e74d4ef32d4ca1158198bc51d8a0472773e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1720E 19432 bytes
font_01_sfnt_off0001affc.bin
d323cb43ba413445195f7103184acc912918410a72108b855c969944cacfcba3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AFFC 5448 bytes
font_02_sfnt_off0001c290.bin
4b91a169176a2a5b618c9d33796035d1902fa1bd163fea8a92e089ab1c2ec88a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C290 9344 bytes
font_03_sfnt_off0001dc5d.bin
7a89f502368c856e6224c1aaf67a686e34a50429e1a91e17cb408716e372c181		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DC5D 9896 bytes
font_05_sfnt_off00021915.bin
268041bceb836425817c9feb93ffee11e51db55c9be86770be4e0bdc73165fa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21915 20000 bytes
font_06_sfnt_off000253d6.bin
f7489efdd643f36478a38beb835f1ce97f2beff91ff435b55c0fb859f5941c38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253D6 16996 bytes

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