Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0b27a2dc7ac280…

MALICIOUS

PDF

98.2 KB Created: 2021-03-16 19:48:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: a7e1babf40fd17ab8fb73cb2180b6278 SHA-1: 11accec092667a9f1b1cde83b4c94639ca4bb656 SHA-256: 2d0b27a2dc7ac280b6fafbcacb8986d24269eeb434a9a46af1f1c8889afdc447
194 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, suggesting a link farm or SEO manipulation tactic to distribute further malicious content. The presence of a 'download button' lure reinforces the malicious intent to trick users into interacting with potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/award?keyword=alter+ego+a1+s+exercer+answers+pdf PDF link annotation
    • https://cdn.sqhk.co/xidatelo/Tdhaya6/xasaful.pdfIn PDF document text
    • https://gamuzajebi.weebly.com/uploads/1/3/4/4/134481120/7627060.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/iYShgih/anyone_demi_lovato_lyrics_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/tojebaru/UX3jghb/photo_collage_maker_free_download_for_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/pubusudes/tgegfje/23441022870.pdfIn PDF document text
    • https://cdn.sqhk.co/kopilixa/47WidwE/mary_daniel_caregivers_for_compromise.pdfIn PDF document text
    • https://gifenatewa.weebly.com/uploads/1/3/4/4/134480542/e84e3a7ba37d.pdfIn PDF document text
    • https://jasemoluzisad.weebly.com/uploads/1/3/5/9/135968146/9885437.pdfIn PDF document text
    • http://xasowokudat.medianewsonline.com/website_to_converter_chrome.pdfIn PDF document text
    • http://vogolimipogusoz.mypressonline.com/grade_11_accounting_financial_statements.pdfIn PDF document text
    • https://bipufufutugudov.weebly.com/uploads/1/3/1/1/131164095/9408856.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/ifjdhat/zemikoduliniketekadig.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/ijeW8jg/download_trainer_alien_shooter_2_reloaded_apk.pdfIn PDF document text
    • https://zuvofuguwapu.weebly.com/uploads/1/3/4/0/134042474/sixinisipib.pdfIn PDF document text
    • https://cdn.sqhk.co/lunemitibojo/9gjicgf/driver_booster_6._1_serial.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://uploads.strikinglycdn.com/files/87829a4d-d25c-4bba-bbb7-d841e8ba79f2/what_is_ap_style_guide_rules.pdfIn PDF document text
    • http://tifilow.onlinewebshop.net/towuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f744b2c1-6f7b-4f81-ace0-1b71680aa66d/mikosamurawizez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bca73e9-c2f6-41be-8288-e07be12c5f0e/what_are_the_qualities_of_a_real_husband.pdfIn PDF document text
    • http://vigavanoxe.onlinewebshop.net/1440595650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11f9c5a6-b04c-4bae-a0a3-f9dbce7de962/7453179880.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a787f05-2336-475b-912d-eb34ccadd09b/82963954060.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ecd5fd3-fd5d-4330-9f0b-d7b4e63336d7/how_to_find_stocks_to_day_trade_on_thinkorswim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea5f7220-f231-4e45-97b4-e2a289878eb7/sujufopefidowiremivove.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
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f12d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12D 6044 bytes
SHA-256: 52c81080dc1a099e5c86c46a5b70705f4e417c863afcadea352ce7026a52e399
font_01_sfnt_off000105df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105DF 5524 bytes
SHA-256: 4adc41062cf7e67e6837d260e7eaf24d946cb53977041193d9772eb6fed27f1b
font_02_sfnt_off000118e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118E1 8768 bytes
SHA-256: 3a3f8655d0e5f890423e4f495a7adc302920ff509363fb7d75b9ad2b3237c62d
font_03_sfnt_off000129fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129FC 3992 bytes
SHA-256: dca4ce9795ea158a7716f63c135ecd91a7297945c64c21d3a4668a2efc86447b
font_04_sfnt_off0001382c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1382C 13776 bytes
SHA-256: cf308f06b30dd4924c8a6bd0af7994d50765c17df6fc0652bff036bf3cfcd0ab
font_05_sfnt_off000164e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x164E0 16060 bytes
SHA-256: 5b0d2701ab39d2f69c66d7d16c60d8db0b323aa0832947137e757b5401d27330

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