Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3294515de05abb…

MALICIOUS

PDF

43.3 KB Created: 2020-08-21 20:53:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5dc2e5b2061be30b038dbdae369c5363 SHA-1: 1e37096f1ac679016fc86d0a8292deb5a360de1b SHA-256: eb3294515de05abb915ef94c28f3bee5e27af7e8d3ff29d4e89298731932e9a9
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=celebration+instrumental+music+free'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the document's primary purpose is to redirect users to a malicious site, likely for further exploitation or phishing.

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.ru/pify?keyword=celebration+instrumental+music+free
    • http://files.mariemedhair.com/uploads/1/3/1/4/131407435/raxirusafa_watujuvipos_vagopebonefeni_getoxikiletozes.pdf
    • http://nosoto.remembrancestars.com/uploads/1/3/1/4/131438044/sakeluram_regetetolekuk_wotogope.pdf
    • http://dewasa.alexagrambush.com/uploads/1/3/1/1/131164250/lewutisasajagi_mutedujunojo_kurolumatizok.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/adobe_acrobat_reader_dc_apk.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/12816565171.pdf
    • https://cdn.shopify.com/s/files/1/0457/0044/8412/files/62737137755.pdf
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/lotogejiwezefav.pdf
    • https://cdn.shopify.com/s/files/1/0433/6048/5541/files/55708083566.pdf
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/20990604792.pdf
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/gawogetuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/basic_civil_engineering_notes_nptel.pdf
    • https://cdn.shopify.com/s/files/1/0434/0665/5642/files/limojegikoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/1289/8461/files/xofoxatudolipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1111/3123/files/kasofoxelojuxaz.pdf
    • https://cdn.shopify.com/s/files/1/0466/5471/8117/files/tejavoguzaxukiserunetuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/3743/2744/files/uap_ac_mesh_pro_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0432/6467/1909/files/fokefupusemek.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_off00005e8c.bin
0b69c353cfe82335d1a522db0c6cff9f41cb49f2edf99a13635f5b901ee8faa3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8C 5072 bytes
font_01_sfnt_off00006fac.bin
cdd574b8d5ba9c32354bda3fe861b055934b7737b939b9d8870cb7bf2d45d685
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAC 10044 bytes
font_02_sfnt_off000091fb.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x91FB 4324 bytes