Malicious PDF — malware analysis report

Static analysis result for SHA-256 44c62dcd2c438921…

MALICIOUS

PDF

59.0 KB Created: 2020-08-18 18:14:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 735a80086330e10a9fd9a110e1bdd1b5 SHA-1: 4c69c82c1f127a575b5eaa20b0af0687377deb19 SHA-256: 44c62dcd2c4389215b6b6dc64c8be615308cfa45eb81fb9471d2e991709322c2
160 Risk Score

Malware Insights

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

The PDF file contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=ba+2nd+year+books+pdf, suggesting a lure to download further content. The presence of a 'Visible LOLBin command execution instruction' heuristic indicates potential for further malicious activity, likely related to fetching and executing payloads from the linked domains.

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.com/pify?keyword=ba+2nd+year+books+pdf
    • http://files.pineapplesupplies.com/uploads/1/3/0/7/130739204/tapipebi.pdf
    • http://files.cesarzamudio.com/uploads/1/3/1/3/131383838/8424967.pdf
    • http://dirogubu.curlydoodles.com/uploads/1/3/0/8/130814328/jatotagedajatoderoka.pdf
    • http://files.imperialgrp.com/uploads/1/3/0/7/130776499/442783.pdf
    • https://cdn.shopify.com/s/files/1/0437/8578/1405/files/josorodefonumezube.pdf
    • https://cdn.shopify.com/s/files/1/0429/1955/9335/files/66709688429.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/backward_caste_list_in_telangana.pdf
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/40123549261.pdf
    • https://cdn.shopify.com/s/files/1/0435/3294/3519/files/nebaxerexuterusa.pdf
    • https://cdn.shopify.com/s/files/1/0433/8784/6806/files/dixaxaguburek.pdf
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/1999_jeep_cherokee_owners_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/4587/8941/files/nananezukolapegalixevedo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/92408058825.pdf
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/kurudukorufekamolafelev.pdf
    • https://cdn.shopify.com/s/files/1/0432/9242/6405/files/effects_of_bullying_research.pdf
    • https://cdn.shopify.com/s/files/1/0432/9956/9829/files/ansi_c_programming_language.pdf
    • https://cdn.shopify.com/s/files/1/0435/9526/8264/files/falatitanizovibodotoso.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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005efe.bin
1eae3c77bcd4c040c5b1e1d63276491fa23ca9b278c97521c497100f59686bd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFE 5152 bytes
font_01_sfnt_off0000707e.bin
3bf9c6dc087280131e165666f392cb8b7e20c00fba454edb2c60918ef363780d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x707E 2596 bytes
font_02_sfnt_off00007c00.bin
026de1076dad6614fee7b4839f066e743e4238b5ddea94259138cfcd618330b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C00 2320 bytes
font_03_sfnt_off00008652.bin
559fba6b944503f1d2947592b8f38b394b6dffffb32bdd9c7232b5be682767cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8652 10324 bytes
font_04_sfnt_off0000a92f.bin
7a7e0f9cb89785dee93ecfbcc78ef93b5a18a5022886c2d5a0bf15d9412c15a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA92F 16224 bytes
font_05_sfnt_off0000be7b.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE7B 4324 bytes
font_06_sfnt_off0000cc7b.bin
47c59c8dfd1df0bfe377cf56ba67876e370966a08ff63e3d454bbe0340640443		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC7B 4532 bytes

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