Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbe5092e57754f54…

MALICIOUS

PDF

36.9 KB Authoring application: OpenOffice Draw
MD5: 4d06c9a6dd664c5e3b1ad5513dcdc355 SHA-1: befe176eaeae93edaf00eb2a97cddd33ed2904b3 SHA-256: dbe5092e57754f544d35237438f1ae8859ff4c2d3f4b3d03d4c0cba793e7fae2
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, characteristic of a link farm used for SEO poisoning or phishing campaigns. The primary URL identified is http://lkfl.ru/uploads/2020/01/27/lifugubebedifodem.pdf, which is part of a mass of similar links.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://lkfl.ru/uploads/2020/01/27/lifugubebedifodem.pdf
    • https://voduboke.weebly.com/uploads/1/3/0/2/130274338/680eb.pdf
    • https://lezovelov.weebly.com/uploads/1/3/0/4/130489563/1149380.pdf
    • http://myhairbywendy.com/uploads/1/3/0/5/130551754/tuzujupenoli-vasab.pdf
    • http://sov.eowe.xyz/uploads/2020/01/28/3468ed3.pdf
    • http://9f62fdd200.com/uploads/1/3/0/6/130620441/tusuzisazawerusosaki.pdf
    • http://wuzaxov.litecoin-red.com/uploads/2020/01/28/berugaloxim.pdf
    • http://bipifoko.candidaturaomarmolina.com/uploads/2020/01/29/1604163.pdf
    • http://outsidethelens.us/uploads/1/3/0/3/130323236/6718786.pdf
    • http://pesegedeve.jannattravel.info/uploads/2020/01/29/99d2afd999538.pdf
    • https://womejaritidawo.weebly.com/uploads/1/3/0/4/130436018/6555254.pdf
    • http://benakes.18xx.fun/uploads/2020/01/28/04c41e2a.pdf
    • http://delejaw.bprofi.su/uploads/2020/01/29/439729.pdf
    • http://landysheva.ru/uploads/2020/01/27/gigaxubezujutabalep.pdf
    • http://humannaturefoundation.com/uploads/1/3/0/4/130489297/130489297.html#how+to+forward+google+calendar+invite

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000136a.bin
76afb04d4ff57fb43a0a243570eda58dc1dbf7d3ddf81f2a99ff055cf2b0eaa5
pdf-font-stream PDF embedded font (sfnt) at offset 0x136A 8060 bytes