Malicious PDF — malware analysis report

Static analysis result for SHA-256 66ad7940529b99d4…

MALICIOUS

PDF

270.8 KB Created: 2021-03-07 23:44:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d043406219056b556bf5c4a267cbc4d SHA-1: e32367e4d872814342874fa13684220475adf1d8 SHA-256: 66ad7940529b99d4a0e908c251bea72cff45d465f48d8dd94fbcb2ab76fa1f1e
136 Risk Score

Malware Insights

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

The document exhibits characteristics of an advance-fee scam, using lures related to prizes or parcels to entice users. It contains an external URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect to a phishing page. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest malicious intent, possibly involving embedded JavaScript for exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://xezojetit.ru/123?utm_term=metal+gear+solid+5+other+playable+characters
    • https://cdn.sqhk.co/fovipobex/djhic8j/get_more_followers_instant_likes_using_posts.pdf
    • http://dawexefif.getenjoyment.net/great_depression_era_recipes.pdf
    • https://static.s123-cdn-static.com/uploads/4447649/normal_5fc6653e7a961.pdf
    • https://cdn.sqhk.co/kupovite/i2hcifJ/dinosaur_world_ky.pdf
    • http://azalea.store/how_to_reset_dvr_to_factory_default_without_remotez5ra3.pdf
    • http://sesizuxewewax.mygamesonline.org/how_to_write_a_professional_resume_youtube.pdf
    • http://helpcreditscore.info/filubedixefidexapofobogoznzkvy.pdf
    • https://cdn.sqhk.co/petawelesup/ijjjjif/gamakepesezibozojabenun.pdf
    • http://koteyarn.moscow/dixinidncwq.pdf
    • https://cdn-cms.f-static.net/uploads/4490515/normal_603fdeda196e3.pdf
    • http://tifusavegapawuf.mygamesonline.org/how_to_find_out_what_transmission_i_have_by_vin.pdf
    • http://falorilipeb.mywebcommunity.org/asmaul_husna_lengkap_dan_artinya.pdf
    • https://cdn.sqhk.co/noviraxat/Q2jahgc/74644582399.pdf
    • http://ersoil.fun/faktor_runtuhnya_bani_umayyah_di_damaskusfp0es.pdf
    • https://cdn-cms.f-static.net/uploads/4403937/normal_5fd12c9a916c5.pdf
    • http://shoop-fe.ru/zombie_hive_mod_apk_downloadovros.pdf
    • https://cdn-cms.f-static.net/uploads/4470696/normal_6013a2ba49495.pdf
    • https://cdn.sqhk.co/xipepovivik/e5nje59/vhs_video_recorder_hdmi.pdf
    • https://cdn.sqhk.co/dozirerom/hhejaSF/treasure_hunters_book_series_james_patterson.pdf
    • https://cdn-cms.f-static.net/uploads/4413843/normal_5fdbb867aeaf0.pdf
    • https://cdn.sqhk.co/zifuvifiweva/d3jhhha/max_volume_booster.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/152ae35f-eaa3-4460-9aef-7dbd38759b83/what_is_a_sentence_for_daybed.pdf
    • https://uploads.strikinglycdn.com/files/d911726c-a392-475f-95f1-18b957b06210/phrasal_verbs_esl_list.pdf
    • https://uploads.strikinglycdn.com/files/57ff89e1-2b95-4484-a2ac-542941f100a9/sevatefebabirupirukodo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003571f.bin
221c1f0d0ebc52c6c45bdc3ebcb38977b9d58dcbf3f7cc33bfe4f9546f66c0f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3571F 47664 bytes
font_01_sfnt_off0003e6b0.bin
de8839547f33dc2142b75a115f85bcf29f4d8aaa09a181d7fc88daf64ead32be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E6B0 5708 bytes
font_02_sfnt_off0003fa20.bin
6f1403f065658a04ebc05b56fa795cfb7d8e9aa102c003238fd2ba62612bb30f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3FA20 16676 bytes

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