Malicious PDF — malware analysis report

Static analysis result for SHA-256 a173c5a824412219…

MALICIOUS

PDF

51.3 KB Created: 2020-10-28 23:09:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 53d65651ab740a7bdce335bda44a8d16 SHA-1: 1fe7fbc85ce7ff2723e1357462fad1de04743f55 SHA-256: a173c5a82441221982705266d77a407ebb8153bada774cd47faac78f90e4d212
212 Risk Score

Malware Insights

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

This PDF document functions as a link farm, directing users to various external PDFs and a malicious redirector. The document body contains a search query for "Consulate general of India Atlanta phone number" and a URL, indicating a phishing or scam lure. The presence of a malicious redirector and a large number of external links suggests an attempt to lead users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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
  • 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://gettraff.ru/strik?keyword=consulate+general+of+india+atlanta+phone+number In PDF document text
    • https://gibitiwatu.weebly.com/uploads/1/3/0/7/130776060/mazosejip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369930/normal_5f892e3932d8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365562/normal_5f895c651bd1c.pdfIn PDF document text
    • https://melesosinipedo.weebly.com/uploads/1/3/4/4/134475371/notenomotib_fojuvewaf_xusogu_kurelomi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417997/normal_5f99aed872c5b.pdfIn PDF document text
    • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/4804019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384639/normal_5f927ce82dccc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388827/normal_5f9048bca7270.pdfIn PDF document text
    • https://nivozigagu.weebly.com/uploads/1/3/4/4/134439663/guxiz.pdfIn PDF document text
    • https://jefogozadiz.weebly.com/uploads/1/3/4/0/134040800/robogekuferuwo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e08f637-3caa-41b7-b345-2bf118942253/23963040521.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/49307728328.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9270/0062/files/las_mejores_pistolas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6206/9910/files/avantree_audition_pro_headphones_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/7811/2158/files/com_pac_16.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bda0940d-9755-42ee-88e1-d80c3988fed6/49272429631.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/ascia_action_plan_anaphylaxis__epipen_personal_2015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37fe0db9-99e3-4471-b1c5-c9ec9c3a3f99/49069554845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/4001/1945/files/history_class_12_ncert_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/68092703878.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/sports_and_recreational_activities_15th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/download_buku_biologi_sma_kelas_10_k13.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/1141/3448/files/patofisiologi_diabetes_melitus_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9546/7195/files/11833061521.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7191 5500 bytes
SHA-256: eb97e8ae02dd05d22200168b6f5b5a7e4e16053359fc6df566d878a9e785726e
font_01_sfnt_off00008411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8411 11224 bytes
SHA-256: 29c20365d8f9e685bbbeb906a4226e6587d838f86157d024f4f769c8eb97c7d6
font_02_sfnt_off0000a97e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA97E 16204 bytes
SHA-256: 31aa257675234f953cb39254c73a0c002637764ec2691c470e0912636c3685cf