Malicious PDF — malware analysis report

Static analysis result for SHA-256 fec3c19d567ea02c…

MALICIOUS

PDF

45.2 KB Created: 2020-10-16 19:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c54549e4ba01dd0594c2c67171a241c7 SHA-1: fb298815f08b7aec844cb4ef2beec5b27db4698a SHA-256: fec3c19d567ea02c5acf567e161f9d96cd3bfba90e2ad9e79132f4efddd22410
152 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, https://ttraff.me/123?keyword=2020+range+rover+sport+supercharged+owners+manual, is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a '2020 range rover sport supercharged owners manual' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links also indicates a link farm strategy, likely for SEO poisoning or traffic redirection.

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.me/123?keyword=2020+range+rover+sport+supercharged+owners+manual
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5f8736ca3339d.pdf
    • https://cdn-cms.f-static.net/uploads/4374374/normal_5f899fda3bbaa.pdf
    • https://cdn-cms.f-static.net/uploads/4367302/normal_5f89bafa544e7.pdf
    • https://cdn-cms.f-static.net/uploads/4366305/normal_5f873c252196e.pdf
    • https://cdn-cms.f-static.net/uploads/4365549/normal_5f871d8447c35.pdf
    • https://uploads.strikinglycdn.com/files/19129e17-5e6d-4358-8451-b8896aa11500/29327174443.pdf
    • https://uploads.strikinglycdn.com/files/beef1f04-422c-4587-8843-b051792818ea/61440337275.pdf
    • https://uploads.strikinglycdn.com/files/6203a4c6-a847-459c-8eff-d657a7d63dbc/ropugoguvikojan.pdf
    • https://uploads.strikinglycdn.com/files/f5a0a905-b93b-4956-8a30-5dc93fe415e2/60430480169.pdf
    • https://cdn.shopify.com/s/files/1/0497/4231/5669/files/leonardo_plaza_jerusalem_restaurant.pdf
    • https://cdn.shopify.com/s/files/1/0485/7590/5957/files/human_body_2004_creative_teaching_press_skeletal_system.pdf
    • https://uploads.strikinglycdn.com/files/59fe2763-3cfa-483d-a3fd-8a1db6a7f2b3/gokumufojoror.pdf
    • https://uploads.strikinglycdn.com/files/9e05c162-4339-42ca-8a0e-b0eb321d74cb/66395400316.pdf
    • https://uploads.strikinglycdn.com/files/e60aeb7d-6bf9-4701-ade5-2e79826bfcda/lopajafovububivowuwumilu.pdf
    • https://uploads.strikinglycdn.com/files/938f99ef-0b33-4225-824c-ac4bfe4b8af5/lijekorik.pdf
    • https://uploads.strikinglycdn.com/files/7958ed34-34dd-4530-aa13-7b702fc3d46b/wekupe.pdf
    • https://uploads.strikinglycdn.com/files/8692130c-1c36-4e81-99ad-c4e16396b65d/46928271328.pdf
    • https://uploads.strikinglycdn.com/files/f84a501a-27ce-487c-92d1-372b5cf3ba70/miduverigajipumo.pdf
    • https://uploads.strikinglycdn.com/files/49c4d504-b541-431f-b7d0-fbe1e89ef07b/55797961090.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/
    • https://uploads.strikinglycdn.com/files/49c4d504-b541-431f-b7d0

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062ee.bin
77d87069e94cef3b8be94933997343f124452a5a4a74c0e8f73d924209720fe0
pdf-font-stream PDF embedded font (sfnt) at offset 0x62EE 5652 bytes
font_01_sfnt_off00007602.bin
22b3d045b74ad98cd472f050e7dc44d986c5188ada44863ab5acec5d681217e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7602 10260 bytes
font_02_sfnt_off0000990a.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x990A 4324 bytes