Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef98091c7943a4a…

MALICIOUS

PDF

45.1 KB Created: 2020-08-12 04:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a67e4d281df8f0045478adbda4eface SHA-1: a452186260d3bb51690f84cb22ac05f995a1d6d3 SHA-256: 2ef98091c7943a4ac07f104683947b032142de1925d567334d7b1f0422f3d383
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to external resources, which is characteristic of a link farm. One of the primary links directs to a known malicious redirector, ttraff.com, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, reinforcing the intent to lure the user to this malicious site. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=communication+styles+passive+aggressive+assertive+pdf
    • http://files.em2profiles.com/uploads/1/3/0/7/130739069/2c742ee7.pdf
    • http://files.trillfarmgarden.co.uk/uploads/1/3/1/1/131164556/68fc9.pdf
    • http://files.heartlandirishdancers.com/uploads/1/3/0/7/130775221/68b641962803544.pdf
    • http://files.wandering-wolf.com/uploads/1/3/1/6/131637056/1803510.pdf
    • http://files.thefuturehollys.com/uploads/1/3/1/4/131437969/bff7747.pdf
    • https://cdn.shopify.com/s/files/1/0429/6219/0499/files/landscape_painting_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0446/0707/8564/files/pairs_cricket_score_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/9277/0977/files/synonyms_words_list_with_urdu_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/repijudurukezukuven.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/17329405055.pdf
    • https://cdn.shopify.com/s/files/1/0437/6874/2046/files/manual_de_autocad_civil_3d_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/7562/3320/files/nixar.pdf
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/rewota.pdf
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/binary_tree_java.pdf
    • https://cdn.shopify.com/s/files/1/0429/7218/4732/files/60584585193.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_off000063f9.bin
26ef0952ab2b61a26c787362e34007daa2ea83060318e63731b57f62f2541ec8
pdf-font-stream PDF embedded font (sfnt) at offset 0x63F9 5540 bytes
font_01_sfnt_off000076c3.bin
041077c8f218792162e78319fe022338934d9775c5eb47d5a6d9d9f7e1dd6e22
pdf-font-stream PDF embedded font (sfnt) at offset 0x76C3 9988 bytes
font_02_sfnt_off000098eb.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x98EB 4324 bytes