Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a24d0632c00d524…

MALICIOUS

PDF

42.1 KB Created: 2020-08-14 14:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7db28f3a549acc27605d10fe577e3f6a SHA-1: 96bd4d493faa78c70fc411060a86c395b3911d45 SHA-256: 2a24d0632c00d5241cf4f62e2d3522f0ef053b8e90c123bd29de9e573a8f7575
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Alef education platform' and includes the primary malicious URL. The presence of a link farm suggests an attempt to distribute malicious content widely. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.cc/pify?keyword=alef+education+platform
    • http://files.lakechristianministries.org/uploads/1/3/0/8/130874646/703dfb.pdf
    • http://nenomaj.bradentonfiredepartment.org/uploads/1/3/2/7/132712380/lixosujejilo-sewapafolaga-lixoveboto.pdf
    • http://files.revitalizefitnessnutrition.com/uploads/1/3/0/7/130776826/b5d44aa6d64.pdf
    • http://files.thedaisyhouse.net/uploads/1/3/1/4/131406826/ae00bbfd70f.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2666/files/suxafugalifivawoxelajog.pdf
    • https://cdn.shopify.com/s/files/1/0431/4038/2882/files/97842554419.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/8272369034.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/tonipixilalaba.pdf
    • https://cdn.shopify.com/s/files/1/0432/1188/2655/files/ganisutapukekogaweravi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4333/2000/files/dexadabazopugone.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/1267196629.pdf
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/40281063988.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6166/files/nojunek.pdf
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/wokerewozaga.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/vakifavizanipiguguri.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006305.bin
4817c3eea07ae09917a2827fe8748ac2624712ac4259fe3b1dd0d5b5d78dbece		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6305 5112 bytes
font_01_sfnt_off0000744b.bin
45c4ef7daa197ced7d781be20bab1a86a5f860257db3b3b800b81aa1c56fe740		 pdf-font-stream PDF embedded font (sfnt) at offset 0x744B 12180 bytes

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