Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe2b37991a0ff0e…

MALICIOUS

PDF

49.6 KB Created: 2020-10-23 19:31:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 363d20bb4a1c3bc4dd70285c97cb0a0f SHA-1: 25571461bf6133c13feef496317905d674a62b88 SHA-256: abe2b37991a0ff0ee03ac71f42ca23595068d7e527eb4aa52ab6c91501a24f14
152 Risk Score

Malware Insights

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

This PDF document contains a link to a known malicious redirector, indicating an attempt to lead the user to harmful content. The ML classifier strongly flagged this PDF as malicious. The presence of a link to 'ttraff.club' suggests a phishing or scam attempt, likely to deliver a second-stage payload or phish for credentials.

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.club/aws?keyword=alg2+antragsbegr%25C3%25BCndung+pdf
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/nevixive.pdf
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/5c6ad5c.pdf
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/menorezopeg_tegasoto_jizifoxanekoxon.pdf
    • https://cdn-cms.f-static.net/uploads/4393755/normal_5f92695a215d3.pdf
    • https://cdn-cms.f-static.net/uploads/4384048/normal_5f8ef5b9c440e.pdf
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f876134daf3d.pdf
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f872d8672669.pdf
    • https://nikoxutaju.weebly.com/uploads/1/3/1/3/131378952/8106763.pdf
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/wujajimu_zoreler.pdf
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/farepo.pdf
    • https://dozasasakebo.weebly.com/uploads/1/3/1/1/131164234/7519535.pdf
    • https://cdn-cms.f-static.net/uploads/4365549/normal_5f887d5bba03f.pdf
    • https://cdn-cms.f-static.net/uploads/4390074/normal_5f8e8cfa6a4e4.pdf
    • https://cdn-cms.f-static.net/uploads/4366035/normal_5f874750d699a.pdf
    • https://cdn-cms.f-static.net/uploads/4366011/normal_5f87258e260b0.pdf
    • https://cdn-cms.f-static.net/uploads/4373757/normal_5f90ac9c5a211.pdf
    • https://cdn.shopify.com/s/files/1/0500/2674/1947/files/43643369548.pdf
    • https://cdn.shopify.com/s/files/1/0268/7647/7623/files/hozier_take_me_to_church_mp4_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0497/8530/7297/files/jejefujeniwo.pdf
    • https://cdn.shopify.com/s/files/1/0482/3180/9176/files/21182966643.pdf
    • https://cdn.shopify.com/s/files/1/0435/7180/6366/files/twin_bed_tent_boy.pdf
    • https://s3.amazonaws.com/henghuili-files2/58004688278.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007183.bin
bc5dc356ff747a6d5e118d2ddac56e231963c50ccc42dfbb1c44731be0e4960c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7183 5316 bytes
font_01_sfnt_off00008363.bin
1a8f385567a4adfdbb88c9ba332b4c3703084e607022a90cd11b1af02b9b9b8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8363 11304 bytes
font_02_sfnt_off0000a8c4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8C4 4324 bytes

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