Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1c9b7d4cb5d157…

MALICIOUS

PDF

39.2 KB Authoring application: QPDF
MD5: d41f9dd49eae7b43e0741148d1cec3a4 SHA-1: dcc004f7ee7e46a01036b878e0075e18215ae281 SHA-256: fd1c9b7d4cb5d1579a1439085d126b28d17fe290109642b46547699fa0217637
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a link farm and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body contains numerous embedded URLs, many of which point to external PDF files. This suggests the primary purpose is to redirect users to a network of malicious sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 https://gowabonebopuluv.weebly.com/uploads/1/3/0/2/130289690/be7548daaf8b.pdf
    • http://tape.trysiki.ru/uploads/2020/01/27/tanobaj-lovamopani-fowupow.pdf
    • http://saharaexchange.com/uploads/1/3/0/2/130289211/5663338.pdf
    • https://fagukigejadiju.weebly.com/uploads/1/3/0/3/130313056/senisopenixe_rerekedolese_jumibigeta_nabiziji.pdf
    • http://rupasug.dom-pod-klyuch.org/uploads/2020/01/27/34105723dc.pdf
    • http://kinstontruckingtransport.com/uploads/1/3/0/6/130620929/e2da5d01d.pdf
    • https://lofudufidimos.weebly.com/uploads/1/3/0/4/130488432/7650709356.pdf
    • http://davesroofingmaine.com/uploads/1/3/0/6/130621335/4088ca0.pdf
    • http://mivu.creamzdorow.ru/uploads/2020/01/28/zavamibejinoxedizi.pdf
    • http://angelaparrishphotography.com/uploads/1/3/0/6/130604547/0117c6170996da.pdf
    • http://vetpoint.us/uploads/1/3/0/5/130547924/bibufanaguzur-mefitufagutiv-luwagil-xazepuwef.pdf
    • http://villarosavisuals.net/uploads/1/3/0/6/130620195/desomofepuwida_rukanepom_saxenib_xaruropepoj.pdf
    • http://beachhousemedia.us/uploads/1/3/0/4/130478307/vimipikalutadoxaj.pdf
    • http://xipene.kaz24.com/uploads/2020/01/27/nogan.pdf
    • http://abelincolnsgirl.com/uploads/1/3/0/6/130622024/f567e214c6f1f9.pdf
    • https://bimageju.weebly.com/uploads/1/3/0/5/130588607/bomazir.pdf
    • http://voxakek.promo8.ru/uploads/2020/01/28/8fadfeac5c275.pdf
    • https://vaxisefoved.weebly.com/uploads/1/3/0/4/130490585/sowupivaz_rugosemuxevur_bogobuz.pdf
    • https://bijenofaziju.weebly.com/uploads/1/3/0/6/130604546/7774321.pdf
    • http://maintwatch.com/uploads/2020/01/29/remidonepozumokaro.pdf
    • http://nipus.antivirussguardservice.xyz/uploads/2020/01/28/ruromolud-mejeratisodo.pdf
    • http://ziritiwodi.oftathechers.com/uploads/2020/01/28/4f329cf5b9.pdf
    • http://nsedacademy-payments.org/uploads/1/3/0/3/130313111/9763854.pdf
    • http://kimeveto.znamenitost.online/uploads/2020/01/28/wasugaxakojaxakewema.pdf
    • http://polydyn3.com/uploads/1/3/0/4/130483875/d8d8ef916b60.pdf
    • http://michaelshusko.com/uploads/1/3/0/4/130489572/130489572.html#lagu+betrand+peto+sahabat+kecil+matikiri

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000182e.bin
e0331a079df478e9bf68c73371ab234c4dbf706d22607a41541ab178b703c9cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x182E 7576 bytes