Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ecbb2488a6b1da4…

MALICIOUS

PDF

52.3 KB Created: 2020-08-20 02:32:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb85ba68cbabbe525c9888b2ac1a3d3a SHA-1: 3ec34217b4a3e5ea6c04a910dc2d4bd85042731f SHA-256: 2ecbb2488a6b1da41caf37c1bb21e5170f60a07db48574211cb704e68ddc9841
152 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The document body mentions 'Aadhar card mobile app', likely a lure to entice users to click the malicious link. The primary malicious URL identified is https://ttraff.com/pify?keyword=aadhar+card++mobile+app, which is a known redirector. No scripts were extracted, limiting the analysis of further payload delivery or execution.

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=aadhar+card++mobile+app
    • http://files.letrim.com/uploads/1/3/1/3/131379301/92bec98f0.pdf
    • http://files.mikesalsgiver.com/uploads/1/3/2/7/132740951/gogivib-zokepevinufoj-wutuxerugi.pdf
    • http://files.illuminatedobjects.com/uploads/1/3/2/6/132681452/6032176.pdf
    • http://files.learningforlittlepeoplepreschool.com/uploads/1/3/1/4/131438456/57ea1e3d3c.pdf
    • http://jezedo.simonesfitfunlife.com/uploads/1/3/1/1/131164250/kudixaxaniwe-woxuxevemisef-sufimofunilibep.pdf
    • https://cdn.shopify.com/s/files/1/0430/1189/9545/files/dilaverunidatis.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/bdo_sorc_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/1884/4322/files/25345772191.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/14049479875.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/kirememefuxid.pdf
    • https://cdn.shopify.com/s/files/1/0454/3338/9214/files/presentation_skills_tips.pdf
    • https://cdn.shopify.com/s/files/1/0434/6822/6725/files/26340152767.pdf
    • https://cdn.shopify.com/s/files/1/0434/9073/8328/files/bulaxofuwasezibetawuj.pdf
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/wazavujizo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4388/0093/files/94349119897.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0124/files/manual_of_practical_medicine_alagappan_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4782/1212/files/tincaps_2020_schedule.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_off000081d1.bin
206b449ff31ef2c15e1db8bb1efe0f3d8ace19111d930e62e0f4623f262ce456		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D1 4864 bytes
font_01_sfnt_off00009240.bin
579935c6e90aa780da775ea07396b58cbcced46631a31b03b54d3e5d10e65f48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9240 10072 bytes
font_02_sfnt_off0000b4ba.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4BA 4324 bytes

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