metasploit | 0685a699fb13d6bc99b6aee35381acf77b00155d56e7448a300aa308fd07598c

General

Target

Avast-Setup-v8.56.msi
Size

156KB
MD5

a31c17a0a4a0d3caf0472c747c890d1a
SHA1

2022484abc139e3643dcf2e1f29a0e52564e738f
SHA256

0685a699fb13d6bc99b6aee35381acf77b00155d56e7448a300aa308fd07598c
SHA512

b551814e1056a96298fab0de7bdc3d746ff7db07cdb0d3b5dc39ee8fc260e03de8b7b329226ce8dbc50bcd809bb8d335fd0de7f2eddf5748d1ed990b5ff0af14

Score

10^/10

metasploit backdoor trojan

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

C2

3.141.210.37:18573

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Executes dropped EXE 1 IoCs

Processes:

MSI2963.tmp

pid process

1664 MSI2963.tmp

pid	process
1664	MSI2963.tmp

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

Processes:

msiexec.exemsiexec.exe

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

Drops file in Windows directory 10 IoCs

Processes:

msiexec.exeDrvInst.exe

description	ioc	process
File created	C:\Windows\Installer\f7426f1.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\f7426f1.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI2932.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\MSI2963.tmp	msiexec.exe
File opened for modification	C:\Windows\INF\setupapi.ev3	DrvInst.exe
File opened for modification	C:\Windows\INF\setupapi.ev1	DrvInst.exe
File opened for modification	C:\Windows\INF\setupapi.dev.log	DrvInst.exe
File created	C:\Windows\Installer\f7426f2.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\f7426f2.ipi	msiexec.exe

Modifies data under HKEY_USERS 44 IoCs

Processes:

DrvInst.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	DrvInst.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\25\52C64B7E\@%SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe,-124 = "Document Encryption"	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid process

1736 msiexec.exe
1736 msiexec.exe

pid	process
1736	msiexec.exe
1736	msiexec.exe

Suspicious use of AdjustPrivilegeToken 61 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exeDrvInst.exe

description	pid	process
Token: SeShutdownPrivilege	1240	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1240	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe
Token: SeSecurityPrivilege	1736	msiexec.exe
Token: SeCreateTokenPrivilege	1240	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1240	msiexec.exe
Token: SeLockMemoryPrivilege	1240	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1240	msiexec.exe
Token: SeMachineAccountPrivilege	1240	msiexec.exe
Token: SeTcbPrivilege	1240	msiexec.exe
Token: SeSecurityPrivilege	1240	msiexec.exe
Token: SeTakeOwnershipPrivilege	1240	msiexec.exe
Token: SeLoadDriverPrivilege	1240	msiexec.exe
Token: SeSystemProfilePrivilege	1240	msiexec.exe
Token: SeSystemtimePrivilege	1240	msiexec.exe
Token: SeProfSingleProcessPrivilege	1240	msiexec.exe
Token: SeIncBasePriorityPrivilege	1240	msiexec.exe
Token: SeCreatePagefilePrivilege	1240	msiexec.exe
Token: SeCreatePermanentPrivilege	1240	msiexec.exe
Token: SeBackupPrivilege	1240	msiexec.exe
Token: SeRestorePrivilege	1240	msiexec.exe
Token: SeShutdownPrivilege	1240	msiexec.exe
Token: SeDebugPrivilege	1240	msiexec.exe
Token: SeAuditPrivilege	1240	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1240	msiexec.exe
Token: SeChangeNotifyPrivilege	1240	msiexec.exe
Token: SeRemoteShutdownPrivilege	1240	msiexec.exe
Token: SeUndockPrivilege	1240	msiexec.exe
Token: SeSyncAgentPrivilege	1240	msiexec.exe
Token: SeEnableDelegationPrivilege	1240	msiexec.exe
Token: SeManageVolumePrivilege	1240	msiexec.exe
Token: SeImpersonatePrivilege	1240	msiexec.exe
Token: SeCreateGlobalPrivilege	1240	msiexec.exe
Token: SeBackupPrivilege	1336	vssvc.exe
Token: SeRestorePrivilege	1336	vssvc.exe
Token: SeAuditPrivilege	1336	vssvc.exe
Token: SeBackupPrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1196	DrvInst.exe
Token: SeLoadDriverPrivilege	1196	DrvInst.exe
Token: SeLoadDriverPrivilege	1196	DrvInst.exe
Token: SeLoadDriverPrivilege	1196	DrvInst.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe
Token: SeRestorePrivilege	1736	msiexec.exe
Token: SeTakeOwnershipPrivilege	1736	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

1240 msiexec.exe
1240 msiexec.exe

pid	process
1240	msiexec.exe
1240	msiexec.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

msiexec.exe

description	pid	process	target process
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1612	1736	msiexec.exe	MsiExec.exe
PID 1736 wrote to memory of 1664	1736	msiexec.exe	MSI2963.tmp
PID 1736 wrote to memory of 1664	1736	msiexec.exe	MSI2963.tmp
PID 1736 wrote to memory of 1664	1736	msiexec.exe	MSI2963.tmp
PID 1736 wrote to memory of 1664	1736	msiexec.exe	MSI2963.tmp

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Avast-Setup-v8.56.msi
1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1240

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:1736

C:\Windows\syswow64\MsiExec.exe
C:\Windows\syswow64\MsiExec.exe -Embedding C7BBDD298EA1F832D0525417A78C89B6
2⤵
PID:1612

C:\Windows\Installer\MSI2963.tmp
"C:\Windows\Installer\MSI2963.tmp"
2⤵
- Executes dropped EXE
PID:1664

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1336

C:\Windows\system32\DrvInst.exe
DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot12" "" "" "6d110b0a3" "0000000000000000" "00000000000002D0" "00000000000005A8"
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:1196

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\Installer\MSI2963.tmp
MD5
abf8e8992450606a9a105db417c7026e

SHA1
ef39ed2f67328ab085dd3546fc8417bee70386cb

SHA256
b6d726d795245a163215ed261f2b6c030d0abead967077bf1bac3170d1a79e7c

SHA512
8eeaf6fef20ba24299ad5e1c4cea3f373a69a5d105d8753dc21cda21ea9f9c92e14a40f31f9dac4a7b0506d985794c5fb19d79f34c8ec98527e59ddecbfa72af

Download Submit
memory/1240-59-0x000007FEFB591000-0x000007FEFB593000-memory.dmp

Filesize
8KB

Download
memory/1612-61-0x0000000000000000-mapping.dmp

Download
memory/1612-64-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download
memory/1664-62-0x0000000000000000-mapping.dmp

Download
memory/1664-65-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads