Malicious PDF — malware analysis report

Static analysis result for SHA-256 a556f547c8c1ceb1…

MALICIOUS

PDF

53.0 KB Created: 2020-08-11 04:31:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b6633181a94edffd858306b105fd560 SHA-1: f208e147824ae28a394088b5323e3965e92ddada SHA-256: a556f547c8c1ceb1e83922f90489b2c14267ed85093480945105b2f3d88f9531
160 Risk Score

Malware Insights

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

This PDF document contains a heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure for downloading manga, and the embedded URLs reinforce this. The primary malicious URL is a redirector that likely leads to further malicious content. The presence of a 'password archive lure' heuristic suggests this PDF may be part of a multi-stage attack.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=descargar+manga+berserk+pdf+gratis
    • http://files.performingmonkies.com/uploads/1/3/0/7/130738850/0b388adab109a.pdf
    • http://files.myportlandtherapist.com/uploads/1/3/2/8/132814589/416289.pdf
    • http://files.nordiclilly.com/uploads/1/3/1/4/131407388/9d0659eb15b.pdf
    • http://files.worldsandgames.org/uploads/1/3/0/7/130775704/3938397.pdf
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/ledolupepunen.pdf
    • https://cdn.shopify.com/s/files/1/0434/6285/2773/files/42798206903.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/common_git_commands.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4602/files/1256563601.pdf
    • https://cdn.shopify.com/s/files/1/0433/6841/5400/files/articulation_and_phonology_in_speech_sound_disorders.pdf
    • https://cdn.shopify.com/s/files/1/0429/0455/1590/files/dajefaxomivavurogotaj.pdf
    • https://cdn.shopify.com/s/files/1/0435/5293/1995/files/jalemuvazo.pdf
    • https://cdn.shopify.com/s/files/1/0437/9469/4304/files/93058216862.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/designing_agentive_technology.pdf
    • https://cdn.shopify.com/s/files/1/0440/2262/8502/files/bopujekurad.pdf
    • https://cdn.shopify.com/s/files/1/0437/0749/8647/files/kodimulinodutofin.pdf
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/66585717857.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f09.bin
b29f9350a720d2da9dc50567d08c4a82684db1fcb28a47e3a5788345b392d808		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F09 6744 bytes
font_01_sfnt_off00006fee.bin
783cc53b9a7637cabb0c692335195ac86d2ed81b0336d87bb12cf92182a67c67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEE 5644 bytes
font_02_sfnt_off000082fa.bin
398cd08b556dd1159d5182ff1a49151a61947ffa4c733fafb821e6ee0fe9f60f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82FA 2504 bytes
font_03_sfnt_off00008dfd.bin
08c2333584ee1f54a8e86e3da2b986507afc29241651fb94bd9cf7cbb4fdea96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFD 10160 bytes
font_04_sfnt_off0000b103.bin
12198ed304d8e74df64bcaa8a4aae6da6436d73ceeb6d758e01031f89a18fcfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB103 16076 bytes

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