Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c7017257a19de9…

MALICIOUS

PDF

70.6 KB Created: 2020-08-14 23:28:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45ba17dfaede00589c1cc7a8ab65e11a SHA-1: b31c9c253effb8aaae705ffc54d9b23d6db5c2c0 SHA-256: 47c7017257a19de93a03925b048d178eb4d13e54673218607d34c03006242f9f
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, pointing to 'https://ttraff.com/pify?keyword=dissection+of+frog+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0431/4519/9784/files/xekosavuvepivenizon.pdf'. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary intent is to lure the user to a compromised site.

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=dissection+of+frog+pdf
    • http://pulef.garryportugal.com/uploads/1/3/0/8/130813330/xanukolamomil-xoriniwezilaro-nuwezorinijek-wamovususajifu.pdf
    • http://files.truefertilitysc.com/uploads/1/3/0/8/130814340/032254faa412e.pdf
    • http://zuzexi.barry3d.com/uploads/1/3/0/8/130814328/jiseguluduzokoma.pdf
    • http://files.theactivationhour.com/uploads/1/3/1/3/131379680/zuvadur.pdf
    • http://zutuga.worcesterdoula.com/uploads/1/3/0/7/130739616/2010037.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/xekosavuvepivenizon.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/93190961809.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/26096375396.pdf
    • https://cdn.shopify.com/s/files/1/0433/0936/7454/files/express_vpn_keys.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/wefiserifixopu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/3413293791.pdf
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/97984705440.pdf
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/6250412272.pdf
    • https://cdn.shopify.com/s/files/1/0437/8374/9781/files/68496909572.pdf
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/18854149404.pdf
    • https://cdn.shopify.com/s/files/1/0436/0064/2211/files/92941904350.pdf
    • https://cdn.shopify.com/s/files/1/0440/6935/5670/files/24510830091.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9212/files/simemopexudes.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/room_on_the_broom_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/volakimupudanidozuxuxata.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_off0000d8b5.bin
4c33d2681c1433a671080b8b54cf5a06010eb37c334be0ad801cd32887835e42
pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B5 5080 bytes
font_01_sfnt_off0000ea09.bin
2a4873e3510ae355ed8f17cf323103874de1a285338df2f330fcd19205c3e87f
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA09 10224 bytes