Malicious PDF — malware analysis report

Static analysis result for SHA-256 0344d551d311d9f4…

MALICIOUS

PDF

45.2 KB Created: 2020-08-25 04:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a9d55184bdfad06bc9d080f5f13dad5 SHA-1: 73365288a2d35ca605511f79e8faaa7a4e2c5501 SHA-256: 0344d551d311d9f4be8fa399317a6e2443b27f7c82af51d39aaa3956a59304aa
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of an MFA lure, suggesting an attempt to harvest credentials or session tokens. The document body also contains the same malicious URL, reinforcing the phishing attempt.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=b+ed+exam+form+2019+ccs+university
    • http://files.neilmckenzieyouthfishingcontest.org/uploads/1/3/1/6/131606127/1963708.pdf
    • http://pupefinax.robynpforrryan.com/uploads/1/3/2/6/132696063/pegekepogon.pdf
    • http://rofipaj.muevetefacil.com/uploads/1/3/1/1/131164250/porazevebutod-lutuvafu-xopajazeruduto.pdf
    • http://fedorahosted.org/lohit
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0457/5130/4348/files/bba_syllabus_ipu_2018.pdf
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/pusifukal.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/20_amino_acids_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/puzitafegemozosizugijupod.pdf
    • https://cdn.shopify.com/s/files/1/0435/3399/2085/files/musica_andina_peruana.pdf
    • https://cdn.shopify.com/s/files/1/0431/1891/9837/files/math_pre_calculus_12_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/3533/6616/files/chinese_language_translation.pdf
    • https://cdn.shopify.com/s/files/1/0433/4931/1646/files/lomefupix.pdf
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/3133071676.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000978c.bin
0e056a25aed98d95bf5895b4eb90d6cf6a25ddc0c622031003d554133aa1f606		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x978C 4244 bytes
font_00_sfnt_off00006036.bin
3b6bdd85be72f228fc5cd4e72ef03352ea253c59e7935ea207c0770109ad3126		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6036 5896 bytes
font_01_sfnt_off0000744f.bin
7fcab09e82f9b8585ed82aeb13c2b1ba31a159ba26e6c2ca00f1a91917e2de4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x744F 10244 bytes

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