Malicious PDF — malware analysis report

Static analysis result for SHA-256 f31ee50446701358…

MALICIOUS

PDF

54.8 KB Created: 2020-08-21 10:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3563c1b7ce52b0ba7c7838dc091fc298 SHA-1: 8a3e5d30158e94b2155ad3992a0231ea73246ace SHA-256: f31ee50446701358b382ef8931e545fcf368330d4a9b26c16b062725bf8b8507
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to PDFs hosted on Shopify. One of these links, however, redirects to a known malicious domain (ttraff.cc). The presence of a "LOLBin Run Command" heuristic suggests that the document may also contain instructions for executing scripts or commands, potentially to further the malicious activity initiated by the redirector link.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=ionic+4+login+form+template
    • http://files.balloontwistersdcvamd.com/uploads/1/3/0/9/130969375/gipagazovupibiz_tolokaduwimola.pdf
    • http://zavolop.nicolaseconomou.net/uploads/1/3/0/9/130969341/zadofefomevudeg.pdf
    • http://riforanaj.wumcmd.org/uploads/1/3/0/8/130874493/6960577.pdf
    • http://ratewix.projectxlacrosse.com/uploads/1/3/1/0/131070152/5272c1bb964.pdf
    • http://files.taybankgrowerscoop.com/uploads/1/3/0/7/130775249/841bf.pdf
    • https://cdn.shopify.com/s/files/1/0434/6000/1957/files/convert_from_degrees_to_radians.pdf
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/2259394285.pdf
    • https://cdn.shopify.com/s/files/1/0434/1569/9621/files/bbc_learning_english_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/7188/0870/files/associao_de_resistores_em_paralelo_exercicios_resolvidos.pdf
    • https://cdn.shopify.com/s/files/1/0446/9984/4762/files/les_blague_de_toto.pdf
    • https://cdn.shopify.com/s/files/1/0437/6484/2647/files/ronidatajofugarebep.pdf
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/99842606233.pdf
    • https://cdn.shopify.com/s/files/1/0433/2473/5643/files/pemizazivuzolidufadilalo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7097/9237/files/acuerdos_de_paz_1996.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_off00007d86.bin
83f8017ffc5405ccf7becae482080b11132057c82dd0c3e2f52fd0051832026c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D86 4968 bytes
font_01_sfnt_off00008e52.bin
50a28b0fdaf4c4711e0a078b4e34db5446f8dfb955d107f3862cf781b5376c17
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E52 16180 bytes
font_02_sfnt_off0000c081.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xC081 4324 bytes