Malicious PDF — malware analysis report

Static analysis result for SHA-256 03b2f14f9f27f559…

MALICIOUS

PDF

56.7 KB Created: 2020-08-18 15:49:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79f03ad92cd8f757833404224c142bd3 SHA-1: fe0dc65551a3b0997597b024c6ab90c3b2cec435 SHA-256: 03b2f14f9f27f559cc35e3f4737f611f3ec33f1b68c690bd9df4c5a691867c80
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. The document body, though partially obfuscated, contains text suggesting a lure for movie downloads, which is a common tactic for phishing or malware distribution. The presence of a malicious redirector link and the sheer volume of outbound links strongly indicate a malicious intent to direct users to harmful sites.

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=frozen+fever+full+movie++480p
    • http://files.vietpro.network/uploads/1/3/0/8/130813362/873cfd7fcc.pdf
    • http://files.jiucle.org/uploads/1/3/0/7/130775888/jofunun_dezenamaron.pdf
    • http://fesemo.carolchallis.com/uploads/1/3/2/7/132710575/nanugu.pdf
    • http://files.luangprabanglibrary.com/uploads/1/3/2/6/132681824/tozefogubulebiliw.pdf
    • http://files.montevistachamber.org/uploads/1/3/2/3/132302759/patonovebabufasik.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://scripts.sil.orgThis
    • http://www.fontrix.comhttp://www.nhncorp.com
    • https://cdn.shopify.com/s/files/1/0430/6649/1031/files/lunch_time_cypher.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/chirutha_telugu_full_movie_free_hd.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3946/files/administration_office_365.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/duxuxaxekivikasopolixaxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/gettysburg_address_text.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/xulatorapiwik.pdf
    • https://cdn.shopify.com/s/files/1/0434/1055/5034/files/37879105224.pdf
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/46608007953.pdf
    • https://cdn.shopify.com/s/files/1/0432/0496/8603/files/23897235180.pdf
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/animal_wise_ted_andrews.pdf
    • https://cdn.shopify.com/s/files/1/0431/2524/4053/files/87692765658.pdf
    • https://cdn.shopify.com/s/files/1/0432/9753/8203/files/vonaxenom.pdf
    • https://cdn.shopify.com/s/files/1/0428/1915/8183/files/wunatosurorudewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2812/7650/files/89038456844.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
    • http://scripts.sil.org/
    • http://scripts.sil.org/OFLAbyssinica

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d0e.bin
f17aee3e0eb225e4c442e38392638beec2f0775d35b0ac7d6700dfc3749fbde6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0E 5148 bytes
font_01_sfnt_off00007e97.bin
699a8b55e50cd80192193eb3832e3199d82edd581ff2a4f3bd3563cc6d5fef53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E97 20968 bytes
font_02_sfnt_off00009ec7.bin
0069fcdfb0d15a278d6261ba79e3a8ab1431e421449c0929a49ce00e9e70677c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9EC7 2276 bytes
font_03_sfnt_off0000a894.bin
de6a90503d0d15f4f490f514229f7facc0aaf0371f4ac520699f3e869cc2794d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA894 10196 bytes
font_04_sfnt_off0000cb88.bin
7be423a9975dd74696fa28cd46b52a55c3739f4a885228df3b07ea410fd2731b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB88 2056 bytes

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