cobaltstrike | 9dc9fec6cfd0f7e565d2bcc58cc487f720d1b25bb650cb34431372d89c515fb5

General

Target

Avast-Setup-v8.56.msi
Size

156KB
MD5

6d0aece3c6c497e5c95f5211391eeb5a
SHA1

27fe022501362ce3d8aad3d8d0ecf0b869580ba0
SHA256

9dc9fec6cfd0f7e565d2bcc58cc487f720d1b25bb650cb34431372d89c515fb5
SHA512

59e6e29a37d37e54ac1c75820f35fa5a4c0fccbe6a7962addd6e929bcd75e8e8465a5c6b59f28b22d14e54a76bc619440bbc5374265072b2bf9145cf100eb7f0

Score

10^/10

cobaltstrike metasploit backdoor trojan

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

C2

3.22.53.161:10939

Extracted

Family

metasploit

Version

encoder/shikata_ga_nai

Signatures

Cobaltstrike
Detected malicious payload which is part of Cobaltstrike.
trojan backdoor cobaltstrike
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:

MSIC8AE.tmp

pid process

820 MSIC8AE.tmp

pid	process
820	MSIC8AE.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)	\??\M:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\O:	msiexec.exe

Drops file in Windows directory 10 IoCs

Processes:

DrvInst.exemsiexec.exe

description	ioc	process
File opened for modification	C:\Windows\INF\setupapi.ev3	DrvInst.exe
File opened for modification	C:\Windows\INF\setupapi.dev.log	DrvInst.exe
File created	C:\Windows\Installer\f74c561.msi	msiexec.exe
File created	C:\Windows\Installer\f74c562.ipi	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC82F.tmp	msiexec.exe
File opened for modification	C:\Windows\Installer\f74c562.ipi	msiexec.exe
File opened for modification	C:\Windows\INF\setupapi.ev1	DrvInst.exe
File opened for modification	C:\Windows\Installer\f74c561.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIC8AE.tmp	msiexec.exe

Modifies data under HKEY_USERS 44 IoCs

Processes:

DrvInst.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CTLs	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\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	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
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\Policies\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\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	DrvInst.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\25\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid process

1340 msiexec.exe
1340 msiexec.exe

pid	process
1340	msiexec.exe
1340	msiexec.exe

Suspicious use of AdjustPrivilegeToken 61 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exeDrvInst.exe

description	pid	process
Token: SeShutdownPrivilege	1948	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1948	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe
Token: SeSecurityPrivilege	1340	msiexec.exe
Token: SeCreateTokenPrivilege	1948	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1948	msiexec.exe
Token: SeLockMemoryPrivilege	1948	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1948	msiexec.exe
Token: SeMachineAccountPrivilege	1948	msiexec.exe
Token: SeTcbPrivilege	1948	msiexec.exe
Token: SeSecurityPrivilege	1948	msiexec.exe
Token: SeTakeOwnershipPrivilege	1948	msiexec.exe
Token: SeLoadDriverPrivilege	1948	msiexec.exe
Token: SeSystemProfilePrivilege	1948	msiexec.exe
Token: SeSystemtimePrivilege	1948	msiexec.exe
Token: SeProfSingleProcessPrivilege	1948	msiexec.exe
Token: SeIncBasePriorityPrivilege	1948	msiexec.exe
Token: SeCreatePagefilePrivilege	1948	msiexec.exe
Token: SeCreatePermanentPrivilege	1948	msiexec.exe
Token: SeBackupPrivilege	1948	msiexec.exe
Token: SeRestorePrivilege	1948	msiexec.exe
Token: SeShutdownPrivilege	1948	msiexec.exe
Token: SeDebugPrivilege	1948	msiexec.exe
Token: SeAuditPrivilege	1948	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1948	msiexec.exe
Token: SeChangeNotifyPrivilege	1948	msiexec.exe
Token: SeRemoteShutdownPrivilege	1948	msiexec.exe
Token: SeUndockPrivilege	1948	msiexec.exe
Token: SeSyncAgentPrivilege	1948	msiexec.exe
Token: SeEnableDelegationPrivilege	1948	msiexec.exe
Token: SeManageVolumePrivilege	1948	msiexec.exe
Token: SeImpersonatePrivilege	1948	msiexec.exe
Token: SeCreateGlobalPrivilege	1948	msiexec.exe
Token: SeBackupPrivilege	516	vssvc.exe
Token: SeRestorePrivilege	516	vssvc.exe
Token: SeAuditPrivilege	516	vssvc.exe
Token: SeBackupPrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1476	DrvInst.exe
Token: SeLoadDriverPrivilege	1476	DrvInst.exe
Token: SeLoadDriverPrivilege	1476	DrvInst.exe
Token: SeLoadDriverPrivilege	1476	DrvInst.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe
Token: SeRestorePrivilege	1340	msiexec.exe
Token: SeTakeOwnershipPrivilege	1340	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

1948 msiexec.exe
1948 msiexec.exe

pid	process
1948	msiexec.exe
1948	msiexec.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

msiexec.exeMSIC8AE.tmp

description	pid	process	target process
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 1032	1340	msiexec.exe	MsiExec.exe
PID 1340 wrote to memory of 820	1340	msiexec.exe	MSIC8AE.tmp
PID 1340 wrote to memory of 820	1340	msiexec.exe	MSIC8AE.tmp
PID 1340 wrote to memory of 820	1340	msiexec.exe	MSIC8AE.tmp
PID 1340 wrote to memory of 820	1340	msiexec.exe	MSIC8AE.tmp
PID 820 wrote to memory of 1148	820	MSIC8AE.tmp	cmd.exe
PID 820 wrote to memory of 1148	820	MSIC8AE.tmp	cmd.exe
PID 820 wrote to memory of 1148	820	MSIC8AE.tmp	cmd.exe
PID 820 wrote to memory of 1148	820	MSIC8AE.tmp	cmd.exe

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:1948

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:1340

C:\Windows\syswow64\MsiExec.exe
C:\Windows\syswow64\MsiExec.exe -Embedding 7DB6BB34A412F1F5C103544EB69127C9
2⤵
PID:1032

C:\Windows\Installer\MSIC8AE.tmp
"C:\Windows\Installer\MSIC8AE.tmp"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:820

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe
3⤵
PID:1148

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:516

C:\Windows\system32\DrvInst.exe
DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot12" "" "" "6d110b0a3" "0000000000000000" "00000000000005B0" "00000000000005A4"
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:1476

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\MSIC8AE.tmp
MD5
8445acade2bf19b86c80f5c757c854e3

SHA1
b919247aef9c63c2746778f112d99da3640336f3

SHA256
1da82af2407ee52355bf097d086eaff78732fe5f647be6650d52e579eef96984

SHA512
aae2d7b513c0e12085e3f45e15d9240f07002660151ab90c5bc4292a27ee47e6f94b50a07a5c6ff2eaafc074a1cf4d4d8a07355cc52643163486e2171997580d

Download Submit
memory/820-63-0x0000000000000000-mapping.dmp

Download
memory/820-66-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/820-67-0x00000000003C0000-0x00000000003EB000-memory.dmp

Filesize
172KB

Download
memory/820-68-0x00000000004C0000-0x00000000004F1000-memory.dmp

Filesize
196KB

Download
memory/820-69-0x00000000021A0000-0x00000000021FF000-memory.dmp

Filesize
380KB

Download
memory/820-70-0x0000000000420000-0x0000000000440000-memory.dmp

Filesize
128KB

Download
memory/1032-62-0x0000000000000000-mapping.dmp

Download
memory/1032-65-0x0000000075511000-0x0000000075513000-memory.dmp

Filesize
8KB

Download
memory/1148-71-0x0000000000000000-mapping.dmp

Download
memory/1948-60-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads