Malicious PDF — malware analysis report

Static analysis result for SHA-256 1086b3b0725bf8ef…

MALICIOUS

PDF

42.4 KB Created: 2020-08-22 11:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7626e96e9fa7ac6f934d51feb2bf7492 SHA-1: 72d883ade649d43bc9e4bef89ba66c5903a16a3a SHA-256: 1086b3b0725bf8ef103ff9691bd6efab71f72886fa402c6762c9f50bb5b91016
162 Risk Score

Malware Insights

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

The PDF contains a lure for a fake application form, directing users to a malicious redirector URL. The document body and heuristics indicate a phishing attempt designed to lead users to malicious infrastructure. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm or content-spinning operation potentially used for SEO poisoning or distributing malicious content.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/pify?keyword=please+find+attached+application+form
    • http://files.alamedhirudotherapy.org/uploads/1/3/0/7/130740213/5196133.pdf
    • http://xabogeluf.onesoulatatime.net/uploads/1/3/2/3/132303410/cd02d.pdf
    • http://files.allanpierce.com/uploads/1/3/1/3/131380728/viniwuk-larevijexi-fegepukawoderog-romeseposubunaj.pdf
    • http://pasavijuz.kindercornerdaycare.com/uploads/1/3/0/8/130874431/7195093.pdf
    • http://bovukif.ptartistry.com/uploads/1/3/1/4/131436967/nawawepomifil-bokopibif.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/87072311870.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/battery_management_system_plett.pdf
    • https://cdn.shopify.com/s/files/1/0449/5890/8584/files/a_b_c_d_song_2015.pdf
    • https://cdn.shopify.com/s/files/1/0435/7079/0558/files/10256027528.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/44719994270.pdf
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/31080836437.pdf
    • https://cdn.shopify.com/s/files/1/0430/2559/6573/files/68876580311.pdf
    • https://cdn.shopify.com/s/files/1/0428/1732/3175/files/52394686152.pdf
    • https://cdn.shopify.com/s/files/1/0437/1732/9064/files/18405097841.pdf
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/vs_2017_platform_toolset_v100.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3809/files/unir_varios_en_uno_con_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0435/4896/7061/files/basic_energy_io_crystal.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006809.bin
ce6529a5813e71e61e38d84d5d8b6b17414a7186bfa57b8447c3a1b208fab25a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6809 5396 bytes
font_01_sfnt_off00007a26.bin
cf9f2f25a7f00bc5b9623918391281307f344a61ad9413dc812f9886068a8c93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A26 9996 bytes

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