Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d8bbe6d8234cfa7…

MALICIOUS

PDF

40.5 KB Created: 2020-08-16 23:22:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2d0107b646281a1b2ffad07963f30562 SHA-1: af1fcc708ad3989d1958d375234435df5f657171 SHA-256: 6d8bbe6d8234cfa7ec54af2ff3052913368dbc6c67f6aca31c6a76a789130f43
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, with one heuristic specifically identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'business cards templates' and includes the malicious URL. This suggests a phishing or scam attempt where users are enticed to click the link, likely leading to further malicious content or exploitation.

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=business+cards+templates
    • http://files.aflair4hair.com/uploads/1/3/2/8/132815123/wowolufakebepop.pdf
    • http://files.daytonsockcompany.com/uploads/1/3/1/1/131164236/vawano-kesupapo.pdf
    • http://files.constructionqualitycouncil.org/uploads/1/3/1/8/131856492/xabaxukavorol.pdf
    • http://tupotoroj.doublecinspection.com/uploads/1/3/1/4/131437601/wegojuxexofulov.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/7565/6094/files/pemotinidukezekapepetar.pdf
    • https://cdn.shopify.com/s/files/1/0437/2591/4277/files/dadoxasirivenigugaboku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/44626595282.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/28621452416.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1109/files/51924903893.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/lerufomukomigipalawowusu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5676/files/96069976241.pdf
    • https://cdn.shopify.com/s/files/1/0438/8497/0139/files/76621254053.pdf
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/wasesu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3432/0794/files/97094208177.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/good_manufacturing_practice_guidelines_eu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/vevewuzoxafevapasimi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006126.bin
91db8d4011e0fa585ee22c03a5778afaf05b188ddce32345e5c5ff4562c6edc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 5268 bytes
font_01_sfnt_off000072ed.bin
b6b7b3613b6602f284b98fa88bd9e3674c90a16ed5145a1d9d2908c7acd8a082		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72ED 10084 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.