Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd9ff68c2e0ace51…

MALICIOUS

PDF

90.8 KB Created: 2021-03-10 11:15:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2387be479e7c41b32710f88441796319 SHA-1: 14b91068afd8efd75345369eaee6f8b53bcfac36 SHA-256: dd9ff68c2e0ace510df2388cdc5d89f96187ba48d6feb86dccb2bc4bb7915a68
136 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating an advance-fee scam lure, presenting itself as a size guide for Lacoste polo shirts. It embeds a URL pointing to a suspicious domain, likely intended to lead the user to a phishing or malware site. The ML classifier and ClamAV detection strongly suggest malicious intent, consistent with a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://nipisod.ru/123?utm_term=lacoste+polo+shirts+size+guide
    • https://lolizafopig.weebly.com/uploads/1/3/1/4/131453679/zawuwibeko_forobofuw.pdf
    • https://telapawuwa.weebly.com/uploads/1/3/5/9/135964826/befoxapepufibop_nezuwuzo.pdf
    • https://cdn.sqhk.co/xixofivib/ihhamU2/3013706777.pdf
    • http://pimesizawox.sportsontheweb.net/limorutomogixorodop.pdf
    • http://wunadimizurened.medianewsonline.com/wexorunokidagadulonudefum.pdf
    • https://cdn.sqhk.co/bowewulaxam/mmgcqAR/xunevixizekonadij.pdf
    • https://cdn.sqhk.co/pelazuwoz/jfja63G/quick_message_crossword_clue.pdf
    • http://nigemutekilum.mypressonline.com/why_is_my_kindle_fire_not_charging.pdf
    • http://pinegobojefo.getenjoyment.net/94631218960.pdf
    • https://noresewikikizi.weebly.com/uploads/1/3/1/4/131453465/tuwazose.pdf
    • https://cdn.sqhk.co/muwunupudi/ecWMdgf/traffic_rider_games_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/setikizo/xuzizapozawifosilo.pdf
    • https://uploads.strikinglycdn.com/files/4642c530-c633-4bfd-91f9-021e086b724f/how_to_fix_a_failed_bios_update.pdf
    • https://uploads.strikinglycdn.com/files/97b0ef9b-0f24-4194-b7e5-12cbbcd3c3ea/80490809089.pdf
    • https://uploads.strikinglycdn.com/files/75a01f87-4234-4140-9aa9-980699f941b6/22368783087.pdf
    • https://s3.amazonaws.com/wozowuledij/wimuk.pdf
    • https://s3.amazonaws.com/sajatofubote/how_does_competition_affect_producers_and_consumers.pdf
    • https://s3.amazonaws.com/davubewu/kazezotuxuxo.pdf
    • https://s3.amazonaws.com/gapivegek/20812695499.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebc8.bin
bec33c7cf73b41d2679a3845f44aa214b9e14c0fa4121793891d064f4eb41c45
pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC8 5328 bytes
font_01_sfnt_off0000fdde.bin
975560744b28703aa8b7fa59a47f9da561e10c6bf3911ba2eb5a5d797147a1f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xFDDE 11072 bytes
font_02_sfnt_off00011e0d.bin
160e69d2f402366b56efefe554ff88fe9f06579af125c765d4b3d0601892c4f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E0D 10788 bytes
font_03_sfnt_off000142e3.bin
112eeec0a159c67f0c3274ecc932a3a924cfc018b6507703cf31515e2f578656
pdf-font-stream PDF embedded font (sfnt) at offset 0x142E3 17584 bytes