Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aaeb715eb4896d8…

MALICIOUS

PDF

46.7 KB Created: 2020-08-25 01:02:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3f49e9a4b60ba1bc1abde60dc5a0d49 SHA-1: 9766bdc4c996712f4fedb55868ac8930fc4abe5a SHA-256: 6aaeb715eb4896d8fde9f8c4659d01f53c03f6a98d37b0628391edc7545c09ca
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to distribute malware or phishing content. The document body also contains a URL that appears to be a lure for 'agario hack coins apk', further supporting a social engineering attack. The presence of numerous external PDF links suggests a link farm intended to manipulate search engine results.

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.com/pify?keyword=agario+hack+coins+apk
    • http://files.journeystoflavors.com/uploads/1/3/2/6/132681823/34fbd0ccd10.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/nugofesofefafuju.pdf
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/95464027383.pdf
    • https://cdn.shopify.com/s/files/1/0433/6776/0028/files/mission_mangal_full_movie_hd_print.pdf
    • https://cdn.shopify.com/s/files/1/0435/3638/4149/files/breakup_party_hd_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/xijiwotewu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93527538138.pdf
    • https://cdn.shopify.com/s/files/1/0438/1140/5986/files/criminal_case_pacific_bay_mod_android_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/6065/8330/files/59843315736.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/3512237761.pdf
    • https://cdn.shopify.com/s/files/1/0430/8280/9497/files/76787744413.pdf
    • https://cdn.shopify.com/s/files/1/0433/2974/9147/files/deformational_plagiocephaly_radiology.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
font_00_sfnt_off00006ba9.bin
3b97dcaa1c474d8e6ba04495875a49fb4e5c59ccff1673f82d09a8c017552594
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA9 4808 bytes
font_01_sfnt_off00007bdb.bin
f4419dcf18e87928a8e7a4f8fc3fd7650263b69095fa54d7d1c8787d098135a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDB 10484 bytes
font_02_sfnt_off00009fc2.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FC2 4324 bytes