Malicious PDF — malware analysis report

Static analysis result for SHA-256 48eecea83ac06679…

MALICIOUS

PDF

36.5 KB Created: 2020-08-23 20:09:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 182b547b883604f46a5fd61a861c5b53 SHA-1: 8c7d2e8b5f8bf6295a5cb15b2201a72072e783f2 SHA-256: 48eecea83ac06679ddcbc935cb0618a517cbd30aa7b502fad075082c1b651bcc
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical redirector link to 'ttraff.ru'. The document body, though malformed, contains text related to a film song, suggesting a lure to disguise the malicious intent. The primary goal appears to be redirecting the user to malicious infrastructure, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=badlapur+film+video+song
    • http://rezodapeb.bellaspeechsensoryworldinc.com/uploads/1/3/0/7/130775455/21fa216e5b6.pdf
    • http://files.milehighed.org/uploads/1/3/0/7/130738889/aa18aec1d887a08.pdf
    • http://wilutavu.mrwillpe.com/uploads/1/3/1/3/131383613/wonesosemukafigewaba.pdf
    • https://cdn.shopify.com/s/files/1/0450/2824/5654/files/30341612894.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/73173211665.pdf
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/32180531143.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/xorutolabepexomo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7587/1654/files/pazemedonadugaziforikun.pdf
    • https://cdn.shopify.com/s/files/1/0432/2269/6096/files/debaronozolomesolo.pdf
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/biochemistry_notes_for_medical_students.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/physics_20_textbook_pearson.pdf
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/29087049348.pdf
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/kiragekoxavegaludukiti.pdf
    • https://cdn.shopify.com/s/files/1/0429/4790/3654/files/38551188772.pdf
    • https://cdn.shopify.com/s/files/1/0431/7193/8461/files/xomolepuxisafikof.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051a3.bin
07a86bf66e702a7873665e2d5bdee4ad19ee200b8f91b71e878f371b8b0edb30
pdf-font-stream PDF embedded font (sfnt) at offset 0x51A3 5472 bytes
font_01_sfnt_off00006433.bin
6716f485b2eaf3151deba75fbb0951a5e1d84a5168b08dec8832df959550088d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6433 9772 bytes