Malicious PDF — malware analysis report

Static analysis result for SHA-256 32518453721c5124…

MALICIOUS

PDF

97.0 KB Created: 2021-04-02 22:31:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 21bd5daf88fbd57dbeab36784158b851 SHA-1: da549b4b92ab1d8c2070bd2e0a16fe2574843692 SHA-256: 32518453721c512454e45eece632a9aa728bdbc4692a7a397d88cefb45b18797
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains a large number of external links, many of which point to PDF files, suggesting a link farm or SEO poisoning attempt. The document also contains urgency and advance-fee scam lures, indicating a phishing or fraud scheme. The presence of ClamAV detection and a high ML score further support its malicious nature, likely serving as a lure to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • 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-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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://resalured.ru/strik?utm_term=white+house+communications+director+salary
    • http://tibagisuminove.sportsontheweb.net/disawujomudidamoxakoz.pdf
    • http://revodegasiger.sportsontheweb.net/31472088375.pdf
    • http://dikagowoxi.sportsontheweb.net/rubber_calender_machine.pdf
    • https://vunivejo.weebly.com/uploads/1/3/4/2/134266425/tegisolebug-kigaxenog-pikuboxegozurat-xonesugovokez.pdf
    • https://sizunevasiwi.weebly.com/uploads/1/3/5/3/135310428/eccc37.pdf
    • https://marodesama.weebly.com/uploads/1/3/5/3/135349202/7481030.pdf
    • https://cdn.sqhk.co/xutazazo/Njbhfgj/lokiwodem.pdf
    • https://cdn.sqhk.co/datolabevev/babibGE/t-_rex_fights_dinosaurs_dominator_edition.pdf
    • https://cdn.sqhk.co/bevizewo/hdZ1Sjc/wujipor.pdf
    • https://cdn.sqhk.co/letarezetap/Gijjhq7/vepoxonojimugapotap.pdf
    • https://cdn.sqhk.co/tutabalero/jckFCS0/smart_goals_template_for_teachers.pdf
    • https://cdn.sqhk.co/dofofigeniso/Cjihdja/stackers_mini_jewellery_box_blush_pink.pdf
    • https://cdn.sqhk.co/jiluputumusi/LXtgcWc/best_of_the_eagles_monmouth_park.pdf
    • https://bewirupudafa.weebly.com/uploads/1/3/1/6/131607000/2381987.pdf
    • https://cdn.sqhk.co/pozuwifofub/bCu4hcS/pevozulinowovekopi.pdf
    • https://cdn.sqhk.co/nukuzulu/Ghbjahj/64484778151.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/dogazisuze/laserjet_p1102w_toner_cartridge.pdf
    • https://s3.amazonaws.com/mogipegi/cara_mengaktifkan_adblock_di_chrome_android.pdf
    • https://7fd4abad-31f8-4c52-ae8e-93d0cc7f2af2.filesusr.com/ugd/910e70_1af571ed2ba64ea49eb74cff4bcc69b0.pdf?index=true
    • http://likutolejit.onlinewebshop.net/kotimiluwugokepelexugukil.pdf
    • https://da550aaf-34ae-4f9b-ad82-7836b82beebe.filesusr.com/ugd/a203e6_9b9fc966e3804a4197d3ee0205534610.pdf?index=true
    • https://69a21580-3c80-4f81-8097-1ec0bc18215d.filesusr.com/ugd/bd7df1_cff5348fe3d04092ac5f3768ddf2b7d6.pdf?index=true
    • https://s3.amazonaws.com/navoburarovada/pasoxexuxup.pdf
    • https://s3.amazonaws.com/sinamozagemoger/emulator_for_android_studio_amd.pdf
    • https://938a05da-450f-421e-a59b-0448473a402a.filesusr.com/ugd/cb5dea_531c243c6a6c4925a1ca59e3f78f5ee4.pdf?index=true
    • https://s3.amazonaws.com/jonora/75995266396.pdf
    • https://f1c0478e-57b3-422a-b8eb-433964b677d2.filesusr.com/ugd/16c17d_0008b00f9fdc4605aeb0ee79d292dab0.pdf?index=true
    • 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_off00013cda.bin
7dbdc047639f2fd23885de2f703dc5e7e75f9acd9514fb803aeec8a48e87709f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CDA 5292 bytes
font_01_sfnt_off00014ebe.bin
d0c47b2fefa2bfa4232bde5dad2ac9d42fc00b74d0e9852c198304830003fe49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14EBE 11628 bytes

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