59e1edf4d82fae4978e97512b0331b7eb21dd4b838b850ba46794d9c7a2c0983

Resubmissions

24-10-2024 09:14

241024-k7dn3swbnr 1

30-03-2023 23:40

230330-3nzfjshc2s 8

Analysis

max time kernel
167s
max time network
178s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
30-03-2023 23:40

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General

Target

3CXDesktopApp-18.12.416.msi
Size

97.8MB
MD5

0eeb1c0133eb4d571178b2d9d14ce3e9
SHA1

bfecb8ce89a312d2ef4afc64a63847ae11c6f69e
SHA256

59e1edf4d82fae4978e97512b0331b7eb21dd4b838b850ba46794d9c7a2c0983
SHA512

85923f35da3638c9aefa152a0a6b7e8f2b8ec6aa6791b4d4a758c8899d04be25fb480253a9fbf27d9c108c6635347af2705d97d962faea497a6649f8b63ec2fc
SSDEEP

3145728:Ujlq80AfkRGgGGo4yrtD1PQLzth2TBcMa8uGj2A:8lqmijypD1YPthSkS

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
3	1700	msiexec.exe
5	1700	msiexec.exe
7	1700	msiexec.exe
9	1700	msiexec.exe
11	1700	msiexec.exe

Enumerates connected drives 3 TTPs 24 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)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\B:	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)	\??\F:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\T:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	msiexec.exe
File opened (read-only)	\??\J:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\W:	msiexec.exe
File opened (read-only)	\??\X:	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1700	msiexec.exe

Suspicious use of AdjustPrivilegeToken 39 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1700	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1700	msiexec.exe
Token: SeRestorePrivilege	1012	msiexec.exe
Token: SeTakeOwnershipPrivilege	1012	msiexec.exe
Token: SeSecurityPrivilege	1012	msiexec.exe
Token: SeCreateTokenPrivilege	1700	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1700	msiexec.exe
Token: SeLockMemoryPrivilege	1700	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1700	msiexec.exe
Token: SeMachineAccountPrivilege	1700	msiexec.exe
Token: SeTcbPrivilege	1700	msiexec.exe
Token: SeSecurityPrivilege	1700	msiexec.exe
Token: SeTakeOwnershipPrivilege	1700	msiexec.exe
Token: SeLoadDriverPrivilege	1700	msiexec.exe
Token: SeSystemProfilePrivilege	1700	msiexec.exe
Token: SeSystemtimePrivilege	1700	msiexec.exe
Token: SeProfSingleProcessPrivilege	1700	msiexec.exe
Token: SeIncBasePriorityPrivilege	1700	msiexec.exe
Token: SeCreatePagefilePrivilege	1700	msiexec.exe
Token: SeCreatePermanentPrivilege	1700	msiexec.exe
Token: SeBackupPrivilege	1700	msiexec.exe
Token: SeRestorePrivilege	1700	msiexec.exe
Token: SeShutdownPrivilege	1700	msiexec.exe
Token: SeDebugPrivilege	1700	msiexec.exe
Token: SeAuditPrivilege	1700	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1700	msiexec.exe
Token: SeChangeNotifyPrivilege	1700	msiexec.exe
Token: SeRemoteShutdownPrivilege	1700	msiexec.exe
Token: SeUndockPrivilege	1700	msiexec.exe
Token: SeSyncAgentPrivilege	1700	msiexec.exe
Token: SeEnableDelegationPrivilege	1700	msiexec.exe
Token: SeManageVolumePrivilege	1700	msiexec.exe
Token: SeImpersonatePrivilege	1700	msiexec.exe
Token: SeCreateGlobalPrivilege	1700	msiexec.exe
Token: SeBackupPrivilege	1096	vssvc.exe
Token: SeRestorePrivilege	1096	vssvc.exe
Token: SeAuditPrivilege	1096	vssvc.exe
Token: SeBackupPrivilege	1012	msiexec.exe
Token: SeRestorePrivilege	1012	msiexec.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1700	msiexec.exe

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\3CXDesktopApp-18.12.416.msi
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1700

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1012

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
61KB

MD5
e71c8443ae0bc2e282c73faead0a6dd3

SHA1
0c110c1b01e68edfacaeae64781a37b1995fa94b

SHA256
95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

SHA512
b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

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C:\Users\Admin\AppData\Local\Temp\Cab5831.tmp

Filesize
61KB

MD5
fc4666cbca561e864e7fdf883a9e6661

SHA1
2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

SHA256
10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

SHA512
c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

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C:\Users\Admin\AppData\Local\Temp\Tar6426.tmp

Filesize
161KB

MD5
73b4b714b42fc9a6aaefd0ae59adb009

SHA1
efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

SHA256
c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

SHA512
73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

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C:\Users\Admin\AppData\Local\Temp\Tar69C9.tmp

Filesize
161KB

MD5
be2bec6e8c5653136d3e72fe53c98aa3

SHA1
a8182d6db17c14671c3d5766c72e58d87c0810de

SHA256
1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

SHA512
0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

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