Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0a3eaf424385b39…

MALICIOUS

PDF

52.9 KB Created: 2020-09-23 04:39:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2f8a454d9cde4f1eb53e860e1f6daff SHA-1: 24d709655ec1e6f162197deb63da97c1765de0ca SHA-256: e0a3eaf424385b39cae82152b0ad0cf91b1a204553182338f24ade64739765d7
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious IOC is the ttraff.link URL, which likely serves as a redirector to further malicious content or phishing pages. The presence of numerous other PDF links, many hosted on Shopify, suggests a tactic to artificially inflate search engine rankings or distribute malicious payloads.

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.link/wix?keyword=ff14+pagos+light+guide
    • http://sigepuliz.jcardinahlprints.com/uploads/1/3/2/7/132741144/8581434.pdf
    • http://files.mindthegapplease.org/uploads/1/3/0/8/130813400/4c02b1967b.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/1001617287.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/empire_warriors_td_lvl_20_guide.pdf
    • https://cdn.shopify.com/s/files/1/0478/1270/6463/files/cable_tv_guide_el_paso_tx.pdf
    • https://cdn.shopify.com/s/files/1/0463/1134/2242/files/tubuzofuwewa.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5581/files/22942966535.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/taboo_movie_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0463/1022/8133/files/support_nintendo_com_wii_error_code_32007.pdf
    • https://cdn.shopify.com/s/files/1/0434/2002/4989/files/86123444843.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e8e.bin
b8dae8135d0c2db786b4677b601e921bf8c1733587cb51ea88a227da88ed7a61
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8E 5080 bytes
font_01_sfnt_off00007ff8.bin
fd8071fcebeade6212407d2560fbf907ea5250c72ac406138d3200ef2a42c1ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF8 10340 bytes
font_02_sfnt_off0000a37c.bin
ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073
pdf-font-stream PDF embedded font (sfnt) at offset 0xA37C 16092 bytes
font_03_sfnt_off0000b844.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xB844 4324 bytes