Malicious PDF — malware analysis report

Static analysis result for SHA-256 600310e447f88ee8…

MALICIOUS

PDF

38.7 KB Created: 2020-08-11 03:52:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a0a9069d0c9a40facc0db661356f714 SHA-1: 79885bda43ac82030fdf88e3a6f5712e1e12d3f9 SHA-256: 600310e447f88ee87530c5bddb8d3b36a92d45b22772ceee6cd76c4616d6d23f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a significant number of embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. Another critical heuristic identifies this as a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content. The ML classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=for+since+just+already+yet+exercises+pdf
    • http://devub.padmasitaa.online/uploads/1/3/2/3/132302921/kuwelolekax.pdf
    • http://files.bonviehomebuildersms.com/uploads/1/3/0/7/130775557/a4e191.pdf
    • http://files.jwojojazz.com/uploads/1/3/0/7/130775784/monit.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0438/3696/5029/files/14869480279.pdf
    • https://cdn.shopify.com/s/files/1/0428/7679/7081/files/pipedixodufubaxuluxudiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/1082/6146/files/advertising_media.pdf
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/types_of_balance_of_power.pdf
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/daloremagifagubobudi.pdf
    • https://cdn.shopify.com/s/files/1/0440/2796/9686/files/konerirox.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/povoladagiguparoned.pdf
    • https://cdn.shopify.com/s/files/1/0430/9218/1145/files/sogifixitofotu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/1190553937.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/70688806470.pdf
    • https://cdn.shopify.com/s/files/1/0438/0760/4896/files/7095816170.pdf
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/wolosixel.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/getimesuvatujunolapagif.pdf
    • https://cdn.shopify.com/s/files/1/0436/9494/8517/files/bosch_gco_2020_spare_parts_list.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_off00004a8f.bin
9a6da6232ce102066d7d3d1f37d2d5329e8aa9a676d02dbc8dad8adfd2791eaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A8F 5232 bytes
font_01_sfnt_off00005c7a.bin
dddd818d92a19ccdeb29fd95985438c7492a1ce9db5d43dc1712c65571126e19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7A 10516 bytes
font_02_sfnt_off00007fba.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBA 4324 bytes

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