Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e022ce15a4efe8c…

MALICIOUS

PDF

51.1 KB Created: 2020-08-15 06:14:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97ba0028593f8be217a4f68e57defd6c SHA-1: 8d2010189b972fc71cf8023bca99cd1239f22c42 SHA-256: 0e022ce15a4efe8cadb12316c1c870438168ead75ba80b4b525b3fc334e63937
154 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.cc'. This suggests the document is designed to lead users to malicious websites, likely for phishing or to download further malware. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=stripe+checkout+form+wordpress
    • http://files.fizzbathco.com/uploads/1/3/2/6/132682806/nuluvomudeguda_disinasosunepu_debelafi_saratijopawadir.pdf
    • http://files.caliraeshautespot.com/uploads/1/3/2/7/132741029/lademonodubu_wabuniparinebex_genofepuj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/4514/3207/files/31786235390.pdf
    • https://cdn.shopify.com/s/files/1/0432/2849/6036/files/11522822299.pdf
    • https://cdn.shopify.com/s/files/1/0432/4858/2820/files/nozonakogewaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9303/3111/files/east_west_college.pdf
    • https://cdn.shopify.com/s/files/1/0434/1468/3815/files/jawinuwogenat.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/laxigitifudavizemitipa.pdf
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/cisco_catalyst_3850_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/42662201202.pdf
    • https://cdn.shopify.com/s/files/1/0435/0204/3288/files/wrong_turn_movie_in_tamil_isaimini.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22584543347.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000a179.bin
aaf77fbcd5d8bde8e415ed0d7ea5635602ad5eae16f0b231ad425aa5d51097f7
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA179 18512 bytes
font_00_sfnt_off00006acb.bin
9eac29e63e461e09f74829d6b4b4946630fd6d3b87b39c82c2e951e57afe5895
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACB 5412 bytes
font_01_sfnt_off00007d22.bin
d93fa869b833a4f787cf8bb7f7ff93acf82503468bf42694d17ccf4983f1f429
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D22 10592 bytes