8f555605017194a2a8da95562ac9e3061b29db5868baf33209952cd9c6bbe16b

Resubmissions

21-02-2023 11:28

230221-nlek2age2y 10

19-02-2023 16:26

230219-tx2gtsga45 1

Analysis

max time kernel
45s
max time network
120s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-02-2023 11:28

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General

Target

icudt67.msi
Size

15KB
MD5

d73b8ebe06c05cddad49297f668b481e
SHA1

44b139944043d4c4c5a33e1782cd8256f3fa70aa
SHA256

6bb13375779535aa693f51038540381efba654676b1471a10b61c5ad616fb81e
SHA512

8dfe75a0219fa67803da33adea82f6e08fd568c938adad3174f9248f060306e4725852282538691a22fff29a9cd50af66c9d884c94f15c9ed392b9f3048844d6
SSDEEP

192:NFNMi7v56OIYiYF8rVs9+qARrk3WJfsHR9y2sE9jBFL2UzZQp:NF6idIYiI9yrk34i/8E9VFL2UtQ

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

msiexec.exe

flow pid process

2 1752 msiexec.exe

flow	pid	process
2	1752	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

Processes:

msiexec.exe

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

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

msiexec.exemsiexec.exe

description	pid	process
Token: SeShutdownPrivilege	1752	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1752	msiexec.exe
Token: SeRestorePrivilege	612	msiexec.exe
Token: SeTakeOwnershipPrivilege	612	msiexec.exe
Token: SeSecurityPrivilege	612	msiexec.exe
Token: SeCreateTokenPrivilege	1752	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1752	msiexec.exe
Token: SeLockMemoryPrivilege	1752	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1752	msiexec.exe
Token: SeMachineAccountPrivilege	1752	msiexec.exe
Token: SeTcbPrivilege	1752	msiexec.exe
Token: SeSecurityPrivilege	1752	msiexec.exe
Token: SeTakeOwnershipPrivilege	1752	msiexec.exe
Token: SeLoadDriverPrivilege	1752	msiexec.exe
Token: SeSystemProfilePrivilege	1752	msiexec.exe
Token: SeSystemtimePrivilege	1752	msiexec.exe
Token: SeProfSingleProcessPrivilege	1752	msiexec.exe
Token: SeIncBasePriorityPrivilege	1752	msiexec.exe
Token: SeCreatePagefilePrivilege	1752	msiexec.exe
Token: SeCreatePermanentPrivilege	1752	msiexec.exe
Token: SeBackupPrivilege	1752	msiexec.exe
Token: SeRestorePrivilege	1752	msiexec.exe
Token: SeShutdownPrivilege	1752	msiexec.exe
Token: SeDebugPrivilege	1752	msiexec.exe
Token: SeAuditPrivilege	1752	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1752	msiexec.exe
Token: SeChangeNotifyPrivilege	1752	msiexec.exe
Token: SeRemoteShutdownPrivilege	1752	msiexec.exe
Token: SeUndockPrivilege	1752	msiexec.exe
Token: SeSyncAgentPrivilege	1752	msiexec.exe
Token: SeEnableDelegationPrivilege	1752	msiexec.exe
Token: SeManageVolumePrivilege	1752	msiexec.exe
Token: SeImpersonatePrivilege	1752	msiexec.exe
Token: SeCreateGlobalPrivilege	1752	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

1752 msiexec.exe
1752 msiexec.exe

pid	process
1752	msiexec.exe
1752	msiexec.exe

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\icudt67.msi
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1752

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:612

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab5E97.tmp
Filesize
61KB

MD5
fc4666cbca561e864e7fdf883a9e6661

SHA1
2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

SHA256
10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

SHA512
c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar658C.tmp
Filesize
161KB

MD5
73b4b714b42fc9a6aaefd0ae59adb009

SHA1
efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

SHA256
c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

SHA512
73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

Download Submit
memory/1752-86-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download