Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d26ccfc53588449…

MALICIOUS

PDF

58.2 KB Created: 2020-08-31 00:07:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdf7a1315e527db29c390acde77f9787 SHA-1: 867bdf72493ca97df2153e8c909e359ee542d068 SHA-256: 1d26ccfc5358844949cad38f3ff022cf2573844d18c81f62d2faceed5855ee11
152 Risk Score

Malware Insights

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

The PDF contains a link to a malicious redirector, ttraff.cc, which is disguised as content related to Minecraft maps. This redirector likely leads to a further stage of the attack. The PDF also contains a link farm with numerous PDF links, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=minecraft+korku+maplar%25C4%25B1+1.7.2
    • https://cdn.shopify.com/s/files/1/0436/5906/7550/files/46082095176.pdf
    • https://cdn.shopify.com/s/files/1/0436/9596/4328/files/87516340671.pdf
    • https://cdn.shopify.com/s/files/1/0437/9122/0887/files/xulupavezakamedilodokolo.pdf
    • https://cdn.shopify.com/s/files/1/0435/1993/4628/files/13917994922.pdf
    • https://cdn.shopify.com/s/files/1/0436/5680/6565/files/vosomogop.pdf
    • https://static.usrfiles.com/ugd/77d535_e3f2893f56224f5ab03c0e4053b2c57c.pdf
    • https://static.usrfiles.com/ugd/b972d5_e06fb498ae7c4bfb9fd3f5aa4693bf64.pdf
    • https://static.usrfiles.com/ugd/575363_ee2cc3ab1c104ef3bd1fc1a61d25d563.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_166ca9342a49483ea42d518e8ab2aa95.pdf
    • https://static.usrfiles.com/ugd/ade4e6_4da345b14c4b4c768e3162ba79a19d0d.pdf
    • https://static.usrfiles.com/ugd/ef7b09_3d17a2e4e01e4e9dbcc377349b99d347.pdf
    • https://static.usrfiles.com/ugd/18f527_7af8fc8391704902876b827f35bab8b2.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_off000093c2.bin
92c537a7b64e1f9a9a029bcb79dc23c9e970991fae499c111074ed01a2423798
pdf-font-stream PDF embedded font (sfnt) at offset 0x93C2 5264 bytes
font_01_sfnt_off0000a5a4.bin
f48f6bfaf363d00504b7e66f4448b60ac026729bf12f80d77f7cc0bc0c202e75
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5A4 12292 bytes
font_02_sfnt_off0000cc1c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xCC1C 4324 bytes