278c453dd51c8bbb92f35be224aba15a5334b7f2451322b9f2c66ae3137f3681

Analysis

max time kernel
87s
max time network
90s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2023 16:13

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General

Target

New folder (2)/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 2 IoCs

flow	pid	Process
1	1120	msiexec.exe
2	1120	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)	\??\K:	msiexec.exe
File opened (read-only)	\??\P:	msiexec.exe
File opened (read-only)	\??\U:	msiexec.exe
File opened (read-only)	\??\A:	msiexec.exe
File opened (read-only)	\??\B:	msiexec.exe
File opened (read-only)	\??\J:	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)	\??\X:	msiexec.exe
File opened (read-only)	\??\Y:	msiexec.exe
File opened (read-only)	\??\E:	msiexec.exe
File opened (read-only)	\??\G:	msiexec.exe
File opened (read-only)	\??\Z:	msiexec.exe
File opened (read-only)	\??\R:	msiexec.exe
File opened (read-only)	\??\V:	msiexec.exe
File opened (read-only)	\??\H:	msiexec.exe
File opened (read-only)	\??\I:	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)	\??\S:	msiexec.exe
File opened (read-only)	\??\F:	msiexec.exe
File opened (read-only)	\??\L:	msiexec.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1120	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1120	msiexec.exe
Token: SeSecurityPrivilege	3376	msiexec.exe
Token: SeCreateTokenPrivilege	1120	msiexec.exe
Token: SeAssignPrimaryTokenPrivilege	1120	msiexec.exe
Token: SeLockMemoryPrivilege	1120	msiexec.exe
Token: SeIncreaseQuotaPrivilege	1120	msiexec.exe
Token: SeMachineAccountPrivilege	1120	msiexec.exe
Token: SeTcbPrivilege	1120	msiexec.exe
Token: SeSecurityPrivilege	1120	msiexec.exe
Token: SeTakeOwnershipPrivilege	1120	msiexec.exe
Token: SeLoadDriverPrivilege	1120	msiexec.exe
Token: SeSystemProfilePrivilege	1120	msiexec.exe
Token: SeSystemtimePrivilege	1120	msiexec.exe
Token: SeProfSingleProcessPrivilege	1120	msiexec.exe
Token: SeIncBasePriorityPrivilege	1120	msiexec.exe
Token: SeCreatePagefilePrivilege	1120	msiexec.exe
Token: SeCreatePermanentPrivilege	1120	msiexec.exe
Token: SeBackupPrivilege	1120	msiexec.exe
Token: SeRestorePrivilege	1120	msiexec.exe
Token: SeShutdownPrivilege	1120	msiexec.exe
Token: SeDebugPrivilege	1120	msiexec.exe
Token: SeAuditPrivilege	1120	msiexec.exe
Token: SeSystemEnvironmentPrivilege	1120	msiexec.exe
Token: SeChangeNotifyPrivilege	1120	msiexec.exe
Token: SeRemoteShutdownPrivilege	1120	msiexec.exe
Token: SeUndockPrivilege	1120	msiexec.exe
Token: SeSyncAgentPrivilege	1120	msiexec.exe
Token: SeEnableDelegationPrivilege	1120	msiexec.exe
Token: SeManageVolumePrivilege	1120	msiexec.exe
Token: SeImpersonatePrivilege	1120	msiexec.exe
Token: SeCreateGlobalPrivilege	1120	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1120	msiexec.exe
1120	msiexec.exe

C:\Windows\system32\msiexec.exe
msiexec.exe /I "C:\Users\Admin\AppData\Local\Temp\New folder (2)\icucnv67.msi"
1⤵
- Blocklisted process makes network request
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1120

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3376

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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