Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e1d2eb28fa5a4f…

MALICIOUS

PDF

62.9 KB Created: 2020-10-27 11:33:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: d8e36631ef496331950c63f0c3d397c2 SHA-1: ef9df70ddcf9c91047e10e29d51d4eda5b31a2dc SHA-256: 60e1d2eb28fa5a4f0381477deb38c7780189feb1c772e4c97a22b669432f1a3b
174 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a UPS training notification, aiming to direct users to a malicious site. The presence of numerous external links, including a known malicious redirector, and the ML classifier's high confidence score indicate a malicious intent. The document body, though heavily obfuscated, contains the malicious URL and references to training, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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) documents that carry no urgency or charge/dispute escalation.
  • 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://ttraff.com/pify?keyword=ups+diad+training In PDF document text
    • https://rigitugatelimo.weebly.com/uploads/1/3/4/1/134131632/woditozowe-siwitezabapaxi-vakudebijibejuw.pdfIn PDF document text
    • https://xilorufanil.weebly.com/uploads/1/3/0/7/130739938/9b6e7.pdfIn PDF document text
    • https://seruliwosudaz.weebly.com/uploads/1/3/4/4/134457931/3895601.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/6029214c-d49a-4d09-8b23-14e9d8595676/39213774806.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f8b0ea2-cdaf-470f-8dbe-a6c382745392/89559415157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7127ec58-3ae2-4fc1-99a0-d7e566232f3b/bece_2019_mathematics_expo_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1701/3912/files/voninimomeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0957/1990/files/16512406684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/4496/6047/files/a_higher_call_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/understanding_cryptography_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3847/3891/files/jadedudibumagotoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4246/2618/files/th_digraph_worksheet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/3272/2599/files/screen_video_recorder_app_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4548/5725/files/converter_curriculo_para_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5307/0509/files/22383047325.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/towonuriliwajax.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/arduino_wifi_library.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/ballet_terms.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/human_anatomy_atlas.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/99527790168.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/99445080554.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/bhagavad_gita_slokas_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/cell_biology_for_csir_net.pdfIn PDF document text
    • https://www.patreon.com/checIn 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_off0000a290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA290 5088 bytes
SHA-256: 6bb4b580634d3f144025baf7083f6106abe695113e7d5c72c2ecbe6de690868b
font_01_sfnt_off0000b3eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3EB 10936 bytes
SHA-256: c700816b1ff094c19efe80eb05c5f51d58ad5735d80130051086afac6dd2a221
font_02_sfnt_off0000d8ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8FF 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15