bitrat | 142a30f9ba3c2e1efbdf15241721da3b20d7b6436761d3eaafdcc095dc681fc4

General

Target

7538dd6e69d0c65d2dc0eb091c3ced18.msi
Size

3.8MB
MD5

7538dd6e69d0c65d2dc0eb091c3ced18
SHA1

9d91e4cc3c59c258ae2655119692c13c899d68d2
SHA256

142a30f9ba3c2e1efbdf15241721da3b20d7b6436761d3eaafdcc095dc681fc4
SHA512

935aed41fbc1bb42cdc4b2c10fd306286642428c017248a71297d7674439415a410464a75b0529eec4b7a98f052408afcde24a501f6970fa405d642aafadb6c6
SSDEEP

98304:D77Pmq33rE/JDLPWZADUGer7B6iY74M/mmlwXVZaFB:L+R/eZADUXR

Score

10^/10

bitrat trojan

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

79.134.225.73:19099

Attributes

communication_password
411f9a6dd54344976e951469585a6963
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat
Executes dropped EXE 1 IoCs

Processes:

MSIAE99.tmp

pid process

1536 MSIAE99.tmp

pid	process
1536	MSIAE99.tmp

Enumerates connected drives 3 TTPs 46 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)	\??\L:	msiexec.exe
File opened (read-only)	\??\N:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe
File opened (read-only)	\??\Q:	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)	\??\O:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\I:	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)	\??\P:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\J:	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)	\??\O:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

MSIAE99.tmp

pid process

1536 MSIAE99.tmp
1536 MSIAE99.tmp
1536 MSIAE99.tmp
1536 MSIAE99.tmp

pid	process
1536	MSIAE99.tmp
1536	MSIAE99.tmp
1536	MSIAE99.tmp
1536	MSIAE99.tmp

Drops file in Windows directory 9 IoCs

Processes:

msiexec.exeDrvInst.exe

description	ioc	process
File opened for modification	C:\Windows\Installer\MSIAE2A.tmp	msiexec.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\f77ab7b.msi	msiexec.exe
File created	C:\Windows\Installer\f77ab7e.ipi	msiexec.exe
File opened for modification	C:\Windows\INF\setupapi.ev3	DrvInst.exe
File opened for modification	C:\Windows\Installer\f77ab7b.msi	msiexec.exe
File opened for modification	C:\Windows\Installer\	msiexec.exe
File opened for modification	C:\Windows\Installer\MSIAE99.tmp	msiexec.exe

Modifies data under HKEY_USERS 43 IoCs

Processes:

DrvInst.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\My	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	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	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\CA\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\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
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\CRLs	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\Policies\Microsoft\SystemCertificates\TrustedPeople	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\trust\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\CA\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Root\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\trust\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\Disallowed\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\SmartCardRoot\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\SystemCertificates\TrustedPeople\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\CA\CTLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\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\CRLs	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	DrvInst.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	DrvInst.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

msiexec.exe

pid process

2692 msiexec.exe
2692 msiexec.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msiexec.exe

pid process

2652 msiexec.exe

pid	process
2692	msiexec.exe
2692	msiexec.exe

pid	process
2652	msiexec.exe

Suspicious use of AdjustPrivilegeToken 59 IoCs

Processes:

msiexec.exemsiexec.exevssvc.exeDrvInst.exeMSIAE99.tmp

description	pid	process
Token: SeShutdownPrivilege	2652	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2652	msiexec.exe
Token: SeRestorePrivilege	2692	msiexec.exe
Token: SeTakeOwnershipPrivilege	2692	msiexec.exe
Token: SeSecurityPrivilege	2692	msiexec.exe
Token: SeCreateTokenPrivilege	2652	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	2652	msiexec.exe
Token: SeLockMemoryPrivilege	2652	msiexec.exe
Token: SeIncreaseQuotaPrivilege	2652	msiexec.exe
Token: SeMachineAccountPrivilege	2652	msiexec.exe
Token: SeTcbPrivilege	2652	msiexec.exe
Token: SeSecurityPrivilege	2652	msiexec.exe
Token: SeTakeOwnershipPrivilege	2652	msiexec.exe
Token: SeLoadDriverPrivilege	2652	msiexec.exe
Token: SeSystemProfilePrivilege	2652	msiexec.exe
Token: SeSystemtimePrivilege	2652	msiexec.exe
Token: SeProfSingleProcessPrivilege	2652	msiexec.exe
Token: SeIncBasePriorityPrivilege	2652	msiexec.exe
Token: SeCreatePagefilePrivilege	2652	msiexec.exe
Token: SeCreatePermanentPrivilege	2652	msiexec.exe
Token: SeBackupPrivilege	2652	msiexec.exe
Token: SeRestorePrivilege	2652	msiexec.exe
Token: SeShutdownPrivilege	2652	msiexec.exe
Token: SeDebugPrivilege	2652	msiexec.exe
Token: SeAuditPrivilege	2652	msiexec.exe
Token: SeSystemEnvironmentPrivilege	2652	msiexec.exe
Token: SeChangeNotifyPrivilege	2652	msiexec.exe
Token: SeRemoteShutdownPrivilege	2652	msiexec.exe
Token: SeUndockPrivilege	2652	msiexec.exe
Token: SeSyncAgentPrivilege	2652	msiexec.exe
Token: SeEnableDelegationPrivilege	2652	msiexec.exe
Token: SeManageVolumePrivilege	2652	msiexec.exe
Token: SeImpersonatePrivilege	2652	msiexec.exe
Token: SeCreateGlobalPrivilege	2652	msiexec.exe
Token: SeBackupPrivilege	2544	vssvc.exe
Token: SeRestorePrivilege	2544	vssvc.exe
Token: SeAuditPrivilege	2544	vssvc.exe
Token: SeBackupPrivilege	2692	msiexec.exe
Token: SeRestorePrivilege	2692	msiexec.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2820	DrvInst.exe
Token: SeLoadDriverPrivilege	2820	DrvInst.exe
Token: SeLoadDriverPrivilege	2820	DrvInst.exe
Token: SeLoadDriverPrivilege	2820	DrvInst.exe
Token: SeRestorePrivilege	2692	msiexec.exe
Token: SeTakeOwnershipPrivilege	2692	msiexec.exe
Token: SeRestorePrivilege	2692	msiexec.exe
Token: SeTakeOwnershipPrivilege	2692	msiexec.exe
Token: SeRestorePrivilege	2692	msiexec.exe
Token: SeTakeOwnershipPrivilege	2692	msiexec.exe
Token: SeRestorePrivilege	2692	msiexec.exe
Token: SeTakeOwnershipPrivilege	2692	msiexec.exe
Token: SeDebugPrivilege	1536	MSIAE99.tmp
Token: SeShutdownPrivilege	1536	MSIAE99.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

msiexec.exe

pid process

2652 msiexec.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

MSIAE99.tmp

pid process

1536 MSIAE99.tmp
1536 MSIAE99.tmp

pid	process
2652	msiexec.exe

pid	process
1536	MSIAE99.tmp
1536	MSIAE99.tmp

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

msiexec.exe

description	pid	process	target process
PID 2692 wrote to memory of 1536	2692	msiexec.exe	MSIAE99.tmp
PID 2692 wrote to memory of 1536	2692	msiexec.exe	MSIAE99.tmp
PID 2692 wrote to memory of 1536	2692	msiexec.exe	MSIAE99.tmp
PID 2692 wrote to memory of 1536	2692	msiexec.exe	MSIAE99.tmp

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\7538dd6e69d0c65d2dc0eb091c3ced18.msi
1⤵
- Enumerates connected drives
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2652

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:2692

C:\Windows\Installer\MSIAE99.tmp
"C:\Windows\Installer\MSIAE99.tmp"
2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1536

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2544

C:\Windows\system32\DrvInst.exe
DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003AC" "0000000000000580"
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Installer\MSIAE99.tmp
Filesize
3.8MB

MD5
7f4cf5385ee25468ab2031d4e38c5ab8

SHA1
6b3253a4b7cc26942031d2b5cd8a3e05d9f35075

SHA256
07e12cd459d8702fd7a5366e060dbca732a3d4353dd6aa84381f98eec53f5426

SHA512
b8a25055753736fa162f67b381ebd5563c5b2f6a69a98ef56d88aeba760f4e596cebf2d3d5e949b2b9d433e5f4cda76f2657cf513a3e2dbb3c49785669835e8d

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads