Malicious PDF — malware analysis report

Static analysis result for SHA-256 58a3a611e6f57d8b…

MALICIOUS

PDF

80.7 KB Created: 2021-03-24 06:27:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4a41b3bf8ac8cc0c45e291f2982cb802 SHA-1: 70353dd00922582e11fdb206da41c4a6bbf7f6d1 SHA-256: 58a3a611e6f57d8b962403ed3952b6ce930042013e0cd2134dbb9103841f719a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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://fokemale.ru/strik?utm_term=scarlett+gone+with+the+wind+sequel+pdf PDF link annotation
    • http://prod-fruit.space/dalatesukukozp1q42.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/ja9hhNK/azhage_azhage_audio_cut_song_free.pdfIn PDF document text
    • http://discout.online/metegovaag65i.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/oibiaii/keep_talking_and_nobody_explodes_ps4_vr.pdfIn PDF document text
    • https://cdn.sqhk.co/tezasevimab/Jpljeyp/my_little_princess_quotes.pdfIn PDF document text
    • https://cdn.sqhk.co/jesupesiparu/k2KjjAZ/gafumataxigamo.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/jfpMtWS/yodeler_s_answer_crossword_puzzle_clue.pdfIn PDF document text
    • http://btsworld.org/51390273600el1iw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dupula/wikavefeseva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70d625cc-dd2e-4b67-9a95-4b5d17309c3e/keto_diet_meal_plan_for_a_week.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42c7d35b-f086-46de-bc5b-80dd3dc67e73/how_much_is_a_brother_embroidery_machine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aa36945-7dcb-4ad3-bc0d-d9e19fe1e493/how_to_cite_words_from_a_poem_on_noodletools.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3565d167-ced3-4758-a194-2ecad5b44e5c/26213631465.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12c036d6-8372-482f-85d9-39a455e60636/states_that_dont_have_religious_exemptions_for_vaccines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/985f6682-6103-4751-89b2-6b5ffd117f20/23016664442.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97c38d38-f26f-4814-b454-d77f2fc79c1e/tomuf.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/how_the_grinch_stole_christmas_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2bbe0c7-c6da-41af-8add-abffaa8fdcbd/how_to_activate_zotero_in_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/020ad78c-4692-44bd-b117-8005ba055a34/siduw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b2d012-c8e2-448b-bcf3-c51d33ba4f95/echo_gt_225_gas_tank_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f1f0a6b-4380-4d90-ace8-a6e345f34b92/97193484414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4b8d8a7-f02e-4ad2-999f-a7c1ecb76615/tiluritisekuf.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://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAF 5740 bytes
SHA-256: d9c8cb6f1907366853f206c354aef8b30a9f487fa2d4a17fc2e01edfbe82575c
font_01_sfnt_off00010f3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F3D 10620 bytes
SHA-256: ddbf13cad1b5c7a3fa6d2a66074388ad30b738b0fdec9ec0c2e57a765cae81dd

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