Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c79a1b429b48de4…

MALICIOUS

PDF

78.0 KB Created: 2021-03-24 19:24:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: debc6d82564899e18acbea7e93dc93d9 SHA-1: b74e17fc83fbd0884dd935098c6acd91612d41a1 SHA-256: 9c79a1b429b48de44ed9969693bd71ab59434d0452a75f6bb71740fba1b9cad8
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an external URI pointing to a URL that advertises 'afk arena hack apk', suggesting a phishing or scam attempt. Although no scripts were explicitly extracted, the PDF structure and the presence of external URLs indicate potential malicious activity, likely involving the download of further payloads or redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/wix?keyword=afk+arena+hack+apk
    • https://cdn.sqhk.co/lewoxiguj/mfjdjf9/allegiant_stadium_jobs_bartender.pdf
    • https://cdn.sqhk.co/wesuwajil/g2ijFSq/how_to_make_origami_flowers_with_a4_paper.pdf
    • http://wotidoteked.mywebcommunity.org/gamekuxewed.pdf
    • https://cdn.sqhk.co/zowonefaso/iaTAH9U/cricket_wireless_bowling_green_ky.pdf
    • http://rubolanir.mypressonline.com/amazon_kindle_books_in.pdf
    • http://giwewigipebi.medianewsonline.com/bidding_process_and_evaluation_management.pdf
    • http://saniwigudovo.scienceontheweb.net/benami_property_act_1988.pdf
    • https://cdn.sqhk.co/rukugewul/ij6Q7jj/.pdf
    • http://fafijitesulexiz.mygamesonline.org/how_to_use_a_washer_dryer_combo.pdf
    • http://zokibijefepixit.22web.org/how_to_program_rca_universal_remote_to_apex_tv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/9dabaa9d-9fe8-4729-b449-fe5f3ade535c/how_much_should_i_pay_for_computer_repair_technician.pdf
    • http://puligop.epizy.com/anjali_anjali_song_ringtone.pdf
    • https://s3.amazonaws.com/rivazixexuguri/ci_adc0804_datasheet.pdf
    • https://uploads.strikinglycdn.com/files/7d550f25-2c77-4518-95f0-20a637cd2629/lebewewajevukinugonim.pdf
    • http://disemetizoxexo.rf.gd/pathfinder_witch_familiar_guide.pdf
    • https://uploads.strikinglycdn.com/files/f08bbca7-63ff-44f8-9fa2-03dbc75d74df/4914304110.pdf
    • https://uploads.strikinglycdn.com/files/7da57dc5-33e2-4f46-9cb9-cb9c43a55a66/migakupokitaj.pdf
    • https://uploads.strikinglycdn.com/files/9a74292f-c4d6-4707-8467-063af8789e6a/91994629721.pdf
    • https://uploads.strikinglycdn.com/files/0d20afe7-2f24-4486-bd76-fe8a829f7403/suditenelegab.pdf
    • https://s3.amazonaws.com/rafiralexezol/vanagunajumufubudid.pdf
    • https://uploads.strikinglycdn.com/files/1daf8656-945a-4e91-8ef2-855d40f04a22/how_to_find_a_photo_url.pdf
    • https://s3.amazonaws.com/radubozufiwo/hypixel_skyblock_guide_reddit.pdf
    • https://uploads.strikinglycdn.com/files/0498a9c4-b93a-41ba-af4b-4b5d33aa76e1/93823744799.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_off0000f0b1.bin
f7a1e81be994db7f457b81044a735fec02c7a5bb989f33ed4524d44a3a939cc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B1 4944 bytes
font_01_sfnt_off00010189.bin
769b8f07e8267b156fc3874b81925bccd68af4dfcc4cd73e16d74bb52c0d2217		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10189 12544 bytes

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