Malicious PDF — malware analysis report

Static analysis result for SHA-256 d817a3b7f591a446…

MALICIOUS

PDF

83.0 KB Created: 2021-04-26 05:12:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf9d1c8fbffa530d11769209ce8778fb SHA-1: 27b6b7fd9e98597db9e05b887947ed910c017ab7 SHA-256: d817a3b7f591a446d19884ae3a2e2f78f331bf9d1f3078a5146b4fa16387a0e1
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL pointing to a suspicious domain ('lozipotod.ru') that is likely used for phishing or malware delivery. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a coordinated effort to distribute malicious content. ClamAV also detected this file as 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=five+dysfunctions+of+a+team+book+summary+pdf
    • https://cdn-cms.f-static.net/uploads/4463807/normal_60306f8d4652b.pdf
    • http://pesale.pro/what_does_clarion_mean_in_literatureu5yk0.pdf
    • https://static.s123-cdn-static.com/uploads/4406806/normal_5ff0000057bef.pdf
    • http://vizit.store/logical_reasoning_aptitude_questions_with_answersn5l6l.pdf
    • https://cdn-cms.f-static.net/uploads/4469841/normal_603880b5e58c2.pdf
    • https://cdn-cms.f-static.net/uploads/4479454/normal_5fdb0fc6bc32c.pdf
    • http://thrivewebs.com/how_to_play_uno_family_card_gameezqlp.pdf
    • https://cdn-cms.f-static.net/uploads/4417222/normal_600cf5adf3758.pdf
    • https://cdn-cms.f-static.net/uploads/4470703/normal_5fe6e275152d0.pdf
    • https://static.s123-cdn-static.com/uploads/4367633/normal_5fe10a045bfcf.pdf
    • http://opensalon.xyz/85770829085q23ym.pdf
    • https://static.s123-cdn-static.com/uploads/4428043/normal_5fccabb4bb9c8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/0fb46155-b2ab-48d6-9975-d7865c0ed2ac/replace_transmission_shift_solenoid_2005.pdf
    • https://f499a9ea-5579-4d3c-a180-ba191067f9b7.filesusr.com/ugd/34ec99_ef6d7603e27c45d0a608b3f62d97708a.pdf?index=true
    • https://6f1239e7-da96-47bf-8adb-22d47a96a9da.filesusr.com/ugd/bb5a15_a433889218304f0b8c1b2a1b9375e13b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/028e5a4a-4eeb-4f41-b4d0-f892038c07e4/what_is_the_net_worth_of_prince_harry.pdf
    • https://8b1d1a20-f0f3-43d5-aeb5-704ac988d6c7.filesusr.com/ugd/9dbc1d_57b76f94a0384711b3a3b5b3e5d48691.pdf?index=true
    • https://21e323bd-7fdd-46e9-a6c7-4880e76d7610.filesusr.com/ugd/0a51c1_9adf83cdaebf4143818ddbbb7d384842.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d7ebfa5d-8114-4c57-b37b-d7b6db9ec492/29467654517.pdf
    • https://uploads.strikinglycdn.com/files/46953e35-dbab-4be2-b1b5-e193e723e7b8/legend_of_zelda_manga_box_set_review.pdf
    • https://uploads.strikinglycdn.com/files/b0f9a05e-5143-4292-9c46-9d1edff8274c/what_is_a_manufacturing_trade_deficit.pdf
    • https://uploads.strikinglycdn.com/files/1ad54c38-8904-4a96-ba90-8b11499585b1/what_is_realistic_drama.pdf
    • https://uploads.strikinglycdn.com/files/4a200047-971c-42f4-aba4-67fe37c56188/walmart_snow_tires_205_55r16.pdf
    • https://uploads.strikinglycdn.com/files/3f281d12-3fb3-4391-9abc-348986e1cff9/40223318990.pdf
    • https://369206df-e466-4f8f-9771-850d1edb33c5.filesusr.com/ugd/8fd5dc_a53f596ad5ba4912a581164112f52fd2.pdf?index=true
    • https://uploads.strikinglycdn.com/files/207b81e5-e6a9-4287-abae-1560178b8f45/sodastream_one_touch_electric_white.pdf
    • 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001058c.bin
db148972b1e1854951a5401869ae87bd66bf1d96df4336790101b6b6d4e61f6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1058C 5592 bytes
font_01_sfnt_off0001188c.bin
59d000e4b982f99a2b1379b67834ce13ab15732d41a592edec8a35e1fa49d236		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1188C 11064 bytes

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