Malicious PDF — malware analysis report

Static analysis result for SHA-256 41b10f7e607585d6…

MALICIOUS

PDF

41.5 KB Created: 2020-09-17 07:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 37a5d1b01b10b4118fc448ac25f73a71 SHA-1: ed767567208e3bb862bd4b6b9cf724599ea6d48a SHA-256: 41b10f7e607585d61c416ac19c25cdd086840c0e5c8a638b17627d4e59a8654f
128 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to other PDFs, forming a link farm. One of the primary links, 'https://ttraff.me/wix?keyword=minecraft+pe+0.14+0+apk', is identified as a malicious redirector. The document body also contains this URL, suggesting the intent is to lure users into downloading potentially malicious content disguised as game-related files.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=minecraft+pe+0.14+0+apk
    • http://kixegex.katmaccontent.com/uploads/1/3/1/4/131454143/xolesetovuborisifuw.pdf
    • http://metigifir.beatbettingtips.com/uploads/1/3/1/4/131452913/xakugivexonukisukuda.pdf
    • http://wujezimik.karenstothert.org/uploads/1/3/1/3/131379741/211456.pdf
    • http://files.vietnamesestudies.org/uploads/1/3/2/3/132303329/tuwanadiwubesobaxir.pdf
    • http://rexezumuj.laredoenvironmentalsummit.com/uploads/1/3/1/4/131437699/d7967e5.pdf
    • https://cc6b78ca-781c-4af1-b459-ac613cf1ac38.filesusr.com/ugd/197ed4_0f8dba4fc4d34906a0b8a9216b7c2b37.pdf?index=true
    • https://c5e92cf7-24b4-46ca-a1e7-84d33224a2c9.filesusr.com/ugd/d5d855_48cccb71b50248629bcefc8be65e1f43.pdf?index=true
    • https://8beb8338-424c-4d79-b192-60afe4fea252.filesusr.com/ugd/078c79_b58c885b3f1449178ce3b8e0150b8ccb.pdf?index=true
    • https://f6663356-6479-447b-8bb3-bbe81a984bd2.filesusr.com/ugd/724fb5_496339dde0dc4c5994a8b668202fce3b.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/nilepolapavivobubuwezot.pdf
    • https://cdn.shopify.com/s/files/1/0431/8114/6280/files/kufivapugegixasulibena.pdf
    • https://cdn.shopify.com/s/files/1/0434/3667/1132/files/joker_movie_meme_template.pdf
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/texture_igneous_rock.pdf
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/vojixuvemuxose.pdf
    • https://cdn.shopify.com/s/files/1/0430/3421/4561/files/dokogomazerisu.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_off000063b1.bin
9d190f4e4be266d9f8ce457e0a797811292e8f307f87b9523b431ea69608e4f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x63B1 5184 bytes
font_01_sfnt_off00007584.bin
06012d564fa66611a1aec75320ce282ae635536ab7b1d34307459d91418fe467
pdf-font-stream PDF embedded font (sfnt) at offset 0x7584 10396 bytes