Malicious PDF — malware analysis report

Static analysis result for SHA-256 477ddb1f7e6596b1…

MALICIOUS

PDF

51.1 KB Created: 2020-08-22 16:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cfb724826ed23a4974545a634d19d6b SHA-1: 52b6bd48fdf1b6803f2941d5b01d6534467d6665 SHA-256: 477ddb1f7e6596b1a4539458480f31fd57dd8b1480a99e1be56fa447074c7938
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=on+the+way+app+android'. This URL is presented within the document body, suggesting a social engineering lure related to an Android app. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on 'cdn.shopify.com'. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of malicious intent.

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=on+the+way+app+android
    • http://files.vcoamaine.com/uploads/1/3/0/8/130873876/xuvukugesoj_sufaziwibit_sajedukude_loniwarewa.pdf
    • http://folop.moregraceoutreach.com/uploads/1/3/1/3/131398008/pebaxe_zuvoges_sujamopopekux.pdf
    • http://folop.moregraceoutreach.com/uploads
    • https://cdn.shopify.com/s/files/1/0433/8260/3934/files/bad_blood_theranos.pdf
    • https://cdn.shopify.com/s/files/1/0434/0652/4566/files/rewuxovuxa.pdf
    • https://cdn.shopify.com/s/files/1/0452/1220/5216/files/nahuatl_palabras.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/kamok.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/national_achievement_test_result.pdf
    • https://cdn.shopify.com/s/files/1/0434/6377/0274/files/jupapatirufidikasomoko.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/69636376823.pdf
    • https://cdn.shopify.com/s/files/1/0436/3537/6281/files/foxatepizapoge.pdf
    • https://cdn.shopify.com/s/files/1/0433/4629/6985/files/jawofijomemirowebukesom.pdf
    • https://cdn.shopify.com/s/files/1/0435/6866/0643/files/wubofejomalokemorojo.pdf
    • https://cdn.shopify.com/s/files/1/0434/8700/2790/files/gozatevi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9529/4109/files/mixototijukenusedalatosi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0482/9602/files/76110743867.pdf
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/catch_your_sun.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_off00007d34.bin
34f67411a12ac858473d51e6417cc1457bb9902f8fbe5e090e47c78880b93d0f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D34 4844 bytes
font_01_sfnt_off00008db1.bin
3a6252cb6829641bcc6e50b49c5f8571f6cce3c90b433f595c04686cbdb4be6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB1 10420 bytes
font_02_sfnt_off0000b160.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB160 4324 bytes