Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d4fed3757dba1d4…

MALICIOUS

PDF

48.1 KB Created: 2020-08-20 07:07:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b3def16d431e9c139e1ae1b491a45f45 SHA-1: be3c68c52b4cbdff910a0eeb81b8073a2955e730 SHA-256: 2d4fed3757dba1d44686310ad4a41758ee6f6dcfdaa77e7772e910a16dc954a6
160 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One prominent URL, https://ttraff.ru/pify?keyword=netflix+apk+free+movies, is flagged as malicious and likely serves as a lure for potentially harmful content. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' further suggests the document's content is designed to deceive users into engaging in fraudulent activities, such as clicking malicious links under the guise of offering desirable content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.ru/pify?keyword=netflix+apk+free+movies
    • http://kuzaviluw.infinite.vc/uploads/1/3/0/7/130739206/4143248.pdf
    • http://jegulo.fabriccreationsbyandrea.com/uploads/1/3/2/6/132681396/91bb65d.pdf
    • http://files.fellowshipbaptistch.net/uploads/1/3/1/3/131383483/lipowizoxijusuxu.pdf
    • http://nusivi.newleaflanguage.com/uploads/1/3/0/7/130739046/8a31d6fec7c3.pdf
    • http://files.advancingstem.com/uploads/1/3/2/7/132740204/4a86e7f.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7818/files/advanced_computational_mathematics_notes.pdf
    • https://cdn.shopify.com/s/files/1/0438/1586/2434/files/leica_m_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/24141924975.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/88000813021.pdf
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/tiziwake.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobuwavidojanunixi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7460/8545/files/dakutodazopitasupus.pdf
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/12647330244.pdf
    • https://cdn.shopify.com/s/files/1/0447/2075/0745/files/55629186533.pdf
    • https://cdn.shopify.com/s/files/1/0431/4716/5850/files/nogibonotobojumusixife.pdf
    • https://cdn.shopify.com/s/files/1/0437/7391/9393/files/differential_equations_paul_blanchard_solutions_manual.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_off00007115.bin
b7c4838b604011b95476420df0c01616449a6fc12fc54539015feaf79674f330
pdf-font-stream PDF embedded font (sfnt) at offset 0x7115 4888 bytes
font_01_sfnt_off000081c0.bin
27003451427f5b47cd440ebc6b8c57225a6efb1cee86104cdc42fae9c4170d65
pdf-font-stream PDF embedded font (sfnt) at offset 0x81C0 10452 bytes
font_02_sfnt_off0000a582.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xA582 4324 bytes