Malicious PDF — malware analysis report

Static analysis result for SHA-256 df9c50db035221e2…

MALICIOUS

PDF

44.2 KB Created: 2020-09-18 00:59:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 653437553b690fd4914b8494c4c87513 SHA-1: 3853267eec5b484258fa81b68fc9f4578f945b49 SHA-256: df9c50db035221e226e8854c09cb1c2a05a393740eae228802926c0f6df30873
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though malformed, contains text related to a worksheet, suggesting a lure to entice users to click the malicious link. The primary malicious URL is https://ttraff.me/wix?keyword=naming+binary+molecular+compounds+worksheet+%25233+answer+key, which likely leads to further malicious content.

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.me/wix?keyword=naming+binary+molecular+compounds+worksheet+%25233+answer+key
    • http://pebela.soldiersofchrist.net/uploads/1/3/1/3/131382134/winuworuj.pdf
    • http://lobar.jenniferwilsonwellness.com/uploads/1/3/1/4/131438405/9ec9fe.pdf
    • http://files.studiosfinearts.com/uploads/1/3/2/6/132681204/zizaxovojenanamiliz.pdf
    • http://begenam.caribbeandreamsconcert.com/uploads/1/3/2/8/132814930/9391674.pdf
    • http://files.oregonfmc.org/uploads/1/3/0/7/130776407/kajuwedazadepi_mogatej_jufedexim.pdf
    • https://cdn.shopify.com/s/files/1/0430/8035/1897/files/60103130621.pdf
    • https://cdn.shopify.com/s/files/1/0438/4253/5581/files/49842975912.pdf
    • https://cdn.shopify.com/s/files/1/0440/3327/8102/files/disebolaligewopeviredulo.pdf
    • https://cdn.shopify.com/s/files/1/0441/2666/6904/files/periodic_table_webquest.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/skype_mobile_video_call.pdf
    • https://ab206af2-6980-4f90-9419-8c13b3bcefa4.filesusr.com/ugd/957c7b_02da45ceecdd48af9906b18db7a27df6.pdf?index=true
    • https://78dc9a41-cb29-4cb1-b345-a521cf41df58.filesusr.com/ugd/e4ff69_49737111e029476db424dae892a0a8cb.pdf?index=true
    • https://e5a7ae8e-d9d0-462a-882d-7477fe4bba74.filesusr.com/ugd/38eac1_17b13179262b4b739e40f13cc83b9b79.pdf?index=true
    • https://3c5f1218-d06a-4ba6-96de-3955306e9f97.filesusr.com/ugd/bb05c1_abf2220f53404db59d3aa850bad1225d.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0429/2562/1404/files/supersu_2.79_flashable_zip.pdf
    • https://cdn.shopify.com/s/files/1/0429/1539/7788/files/wifi_hacker_no_root_apkpure.pdf
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/acls_algorithms_2015.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/
    • https://cdn.shopify.com/s/files/1/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f2d.bin
dbfacebf50bd9e9be029ce6ccbb3c3ecd702ffd3a7b74f855815668a701bdd64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2D 5736 bytes
font_01_sfnt_off00007297.bin
03096d2790936d9b97e0c9929b824642afa8bb25a8696fe091c6291b8c21cd12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7297 10268 bytes
font_02_sfnt_off0000959b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x959B 4324 bytes

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