2a6ecde72991f3e1dba3d49106e26237bd95a505cd97d0b5caea59723e6fb28e

Resubmissions

21-02-2023 11:28

230221-nk4hrsge2v 10

18-02-2023 02:18

230218-cq92ysaa6x 8

Analysis

max time kernel
43s
max time network
116s
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

icucnv67.msi
Size

15KB
MD5

c89f7b63c258a2d8b68a4bdaf5bbb2d4
SHA1

b1181f70adef2cfc1b884aa4a895984843ca326c
SHA256

ee7e175ca56e43932878a617e3a1ac3c005e33ad6964277fea811417ca10d2f2
SHA512

39ca6c5ad801795bbaafe1c85719afdd7ced663ac2fb6530130797a40cd4ed7047d33292c5b41601408488cb5ed4926f9e0744d158a44b128bf517e0562d6e47
SSDEEP

192:+0NMi7v56dIYiYF8rVs9+qARHk/2WJfsHR9y2sE9jBFL2UzZ9O:+06iuIYiI9yHk/24i/8E9VFL2Ut9

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

Processes:

msiexec.exe

flow pid process

2 1560 msiexec.exe

flow	pid	process
2	1560	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)	\??\H:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe
File opened (read-only)	\??\M:	msiexec.exe
File opened (read-only)	\??\Q:	msiexec.exe
File opened (read-only)	\??\S:	msiexec.exe
File opened (read-only)	\??\I:	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)	\??\B:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\J:	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)	\??\A:	msiexec.exe
File opened (read-only)	\??\K:	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)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe

Suspicious use of AdjustPrivilegeToken 34 IoCs

Processes:

msiexec.exemsiexec.exe

description	pid	process
Token: SeShutdownPrivilege	1560	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1560	msiexec.exe
Token: SeRestorePrivilege	888	msiexec.exe
Token: SeTakeOwnershipPrivilege	888	msiexec.exe
Token: SeSecurityPrivilege	888	msiexec.exe
Token: SeCreateTokenPrivilege	1560	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1560	msiexec.exe
Token: SeLockMemoryPrivilege	1560	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1560	msiexec.exe
Token: SeMachineAccountPrivilege	1560	msiexec.exe
Token: SeTcbPrivilege	1560	msiexec.exe
Token: SeSecurityPrivilege	1560	msiexec.exe
Token: SeTakeOwnershipPrivilege	1560	msiexec.exe
Token: SeLoadDriverPrivilege	1560	msiexec.exe
Token: SeSystemProfilePrivilege	1560	msiexec.exe
Token: SeSystemtimePrivilege	1560	msiexec.exe
Token: SeProfSingleProcessPrivilege	1560	msiexec.exe
Token: SeIncBasePriorityPrivilege	1560	msiexec.exe
Token: SeCreatePagefilePrivilege	1560	msiexec.exe
Token: SeCreatePermanentPrivilege	1560	msiexec.exe
Token: SeBackupPrivilege	1560	msiexec.exe
Token: SeRestorePrivilege	1560	msiexec.exe
Token: SeShutdownPrivilege	1560	msiexec.exe
Token: SeDebugPrivilege	1560	msiexec.exe
Token: SeAuditPrivilege	1560	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1560	msiexec.exe
Token: SeChangeNotifyPrivilege	1560	msiexec.exe
Token: SeRemoteShutdownPrivilege	1560	msiexec.exe
Token: SeUndockPrivilege	1560	msiexec.exe
Token: SeSyncAgentPrivilege	1560	msiexec.exe
Token: SeEnableDelegationPrivilege	1560	msiexec.exe
Token: SeManageVolumePrivilege	1560	msiexec.exe
Token: SeImpersonatePrivilege	1560	msiexec.exe
Token: SeCreateGlobalPrivilege	1560	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

msiexec.exe

pid process

1560 msiexec.exe
1560 msiexec.exe

pid	process
1560	msiexec.exe
1560	msiexec.exe

C:\Windows\system32\msiexec.exe
msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\icucnv67.msi
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1560

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:888

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\Cab4A1D.tmp
Filesize
61KB

MD5
fc4666cbca561e864e7fdf883a9e6661

SHA1
2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

SHA256
10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

SHA512
c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar50F4.tmp
Filesize
161KB

MD5
73b4b714b42fc9a6aaefd0ae59adb009

SHA1
efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

SHA256
c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

SHA512
73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

Download Submit
memory/1560-86-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download