Malicious PDF — malware analysis report

Static analysis result for SHA-256 b53b2277e52aba73…

MALICIOUS

PDF

55.8 KB Created: 2020-08-22 21:58:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7136c83f315078430347dfa90579758b SHA-1: db83aebdf85a5b38b9ff8b2a96b877808cd1e83d SHA-256: b53b2277e52aba739ccdc8a990ed44276802c46e9eec4e758829dafc644e92d8
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be a lure related to 'Alia bhatt songs'. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

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.com/pify?keyword=alia+bhatt+songs++bestwap
    • http://files.carrollcountydentistry.com/uploads/1/3/0/7/130775432/bawebapi.pdf
    • http://files.life-mdinc.org/uploads/1/3/2/7/132712093/1987969.pdf
    • http://vilepajek.liquidsunshinedesigns.net/uploads/1/3/1/3/131383841/9401341.pdf
    • http://texav.cammcdonaldphoto.com/uploads/1/3/0/8/130874493/dadiferixux_ladajokol.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/30137918948.pdf
    • https://cdn.shopify.com/s/files/1/0451/8179/6503/files/polymers_class_12_cbse_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/15307710568.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/duvonirofoligof.pdf
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/printable_august_calendar_2020.pdf
    • https://cdn.shopify.com/s/files/1/0439/2953/4632/files/75504443584.pdf
    • https://cdn.shopify.com/s/files/1/0429/9459/8047/files/vagesijinemodogebexar.pdf
    • https://cdn.shopify.com/s/files/1/0437/3102/6071/files/gold_leaf_sheets_makeup.pdf
    • https://cdn.shopify.com/s/files/1/0434/4214/3389/files/kamevavojozusip.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/xujopaziwezamelule.pdf
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/bejarolegisesoxixopusopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2252/4326/files/97989333247.pdf
    • https://cdn.shopify.com/s/files/1/0429/2945/5271/files/badewutoxi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069e9.bin
61ca7f95443c60d1f92a5c857b0847e6c06d3cafd16a39ca8b7e6f90daf7cdd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x69E9 5208 bytes
font_01_sfnt_off00007b9c.bin
5a2547bdc989e6c3bec5f94445fedaf6df3afe73c706236c9086e59ddef531a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9C 6216 bytes
font_02_sfnt_off00008cfd.bin
a7315495073846bd7b1cc697f30ef51f85534a34e91b78ca2ec40eaf9e8db6e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFD 15388 bytes
font_03_sfnt_off0000bd06.bin
149cab45689013e99d1aa520d2e5234663aa5d8577b6aae5e423b5d60aeda4c1
pdf-font-stream PDF embedded font (sfnt) at offset 0xBD06 16036 bytes