02d1aed87366355321948056b3b3ebeb32b12d4db7423bae8b31d174d72d4da8

Analysis

max time kernel
146s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26-12-2023 03:18

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General

Target

4fa6c1c17e7c1296d9eef7676b948c46.exe
Size

75KB
MD5

4fa6c1c17e7c1296d9eef7676b948c46
SHA1

27bdc174fa02ff18f4d5bafd622d46fdb9bd1b3f
SHA256

02d1aed87366355321948056b3b3ebeb32b12d4db7423bae8b31d174d72d4da8
SHA512

e5fa924db2facf47cd8ea14878c51be73dd81311d67aea05c3c5106817763e50d3d60667987ab76f98f6a0c2378c443fc99a4e526e093e81693548b282604d81
SSDEEP

1536:RGjac6lUu4sjBS28Ck89bcRobapREOm9FbOBWVe/bEw3BWF17xwhHKnLB8NhZg/3:RG+baBL30F11whqnNz/OB/q

Score

8^/10

evasion

Malware Config

Signatures

Modifies Windows Firewall 1 TTPs 4 IoCs

evasion

Windows Service

T1543.003

pid	Process
3000	netsh.exe
2968	netsh.exe
1964	netsh.exe
2996	netsh.exe

Deletes itself 1 IoCs

pid	Process
2832	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	syshost.exe

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	176.58.118.172

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	syshost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Installer\{3CED3073-1FEE-B408-8F6B-F5446E394429}\syshost.exe	4fa6c1c17e7c1296d9eef7676b948c46.exe
File opened for modification	C:\Windows\Installer\{3CED3073-1FEE-B408-8F6B-F5446E394429}\syshost.exe	4fa6c1c17e7c1296d9eef7676b948c46.exe
File opened for modification	C:\Windows\Installer\{3CED3073-1FEE-B408-8F6B-F5446E394429}\syshost.exe.tmp	syshost.exe

Modifies data under HKEY_USERS 29 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-101 = "Provides DHCP based enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-102 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	syshost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	syshost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-4 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	syshost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	syshost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	syshost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-100 = "EAP Quarantine Enforcement Client"	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	syshost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	syshost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	syshost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-100 = "DHCP Quarantine Enforcement Client"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-102 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-100 = "RD Gateway Quarantine Enforcement Client"	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-2 = "Provides IPsec based enforcement for Network Access Protection"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-3 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0"	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\napipsec.dll,-1 = "IPsec Relying Party"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\tsgqec.dll,-101 = "Provides RD Gateway enforcement for NAP"	netsh.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-101 = "Provides Network Access Protection enforcement for EAP authenticated network connections, such as those used with 802.1X and VPN technologies."	netsh.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	syshost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2836	syshost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2532	4fa6c1c17e7c1296d9eef7676b948c46.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeAssignPrimaryTokenPrivilege	2836	syshost.exe
Token: SeIncreaseQuotaPrivilege	2836	syshost.exe
Token: SeShutdownPrivilege	2836	syshost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2832	2532	4fa6c1c17e7c1296d9eef7676b948c46.exe	29
PID 2532 wrote to memory of 2832	2532	4fa6c1c17e7c1296d9eef7676b948c46.exe	29
PID 2532 wrote to memory of 2832	2532	4fa6c1c17e7c1296d9eef7676b948c46.exe	29
PID 2532 wrote to memory of 2832	2532	4fa6c1c17e7c1296d9eef7676b948c46.exe	29
PID 2836 wrote to memory of 3000	2836	syshost.exe	31
PID 2836 wrote to memory of 3000	2836	syshost.exe	31
PID 2836 wrote to memory of 3000	2836	syshost.exe	31
PID 2836 wrote to memory of 3000	2836	syshost.exe	31
PID 2836 wrote to memory of 2996	2836	syshost.exe	40
PID 2836 wrote to memory of 2996	2836	syshost.exe	40
PID 2836 wrote to memory of 2996	2836	syshost.exe	40
PID 2836 wrote to memory of 2996	2836	syshost.exe	40
PID 2836 wrote to memory of 2968	2836	syshost.exe	35
PID 2836 wrote to memory of 2968	2836	syshost.exe	35
PID 2836 wrote to memory of 2968	2836	syshost.exe	35
PID 2836 wrote to memory of 2968	2836	syshost.exe	35
PID 2836 wrote to memory of 1964	2836	syshost.exe	38
PID 2836 wrote to memory of 1964	2836	syshost.exe	38
PID 2836 wrote to memory of 1964	2836	syshost.exe	38
PID 2836 wrote to memory of 1964	2836	syshost.exe	38

C:\Users\Admin\AppData\Local\Temp\4fa6c1c17e7c1296d9eef7676b948c46.exe
"C:\Users\Admin\AppData\Local\Temp\4fa6c1c17e7c1296d9eef7676b948c46.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\2915685.tmp"
  2⤵
  - Deletes itself
  PID:2832

C:\Windows\Installer\{3CED3073-1FEE-B408-8F6B-F5446E394429}\syshost.exe
"C:\Windows\Installer\{3CED3073-1FEE-B408-8F6B-F5446E394429}\syshost.exe" /service
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\system32\netsh.exe" advfirewall firewall set rule name="Core Networking - System IP Core" dir=in new action=allow enable=yes profile=any
  2⤵
  - Modifies Windows Firewall
  - Modifies data under HKEY_USERS
  PID:3000
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\system32\netsh.exe" advfirewall firewall set rule name="Core Networking - System IP Core" dir=out new action=allow enable=yes profile=any
  2⤵
  - Modifies Windows Firewall
  - Modifies data under HKEY_USERS
  PID:2968
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\system32\netsh.exe" advfirewall firewall add rule name="Core Networking - System IP Core" dir=out action=allow enable=yes profile=any
  2⤵
  - Modifies Windows Firewall
  - Modifies data under HKEY_USERS
  PID:1964
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\system32\netsh.exe" advfirewall firewall add rule name="Core Networking - System IP Core" dir=in action=allow enable=yes profile=any
  2⤵
  - Modifies Windows Firewall
  - Modifies data under HKEY_USERS
  PID:2996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2532-3-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2532-2-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2532-1-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2532-0-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

Filesize
4KB

Download
memory/2532-5-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2532-4-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2532-7-0x0000000001CD0000-0x0000000001CD1000-memory.dmp

Filesize
4KB

Download
memory/2836-9-0x0000000000C20000-0x0000000000C21000-memory.dmp

Filesize
4KB

Download
memory/2836-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2836-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-16-0x0000000000C20000-0x0000000000C21000-memory.dmp

Filesize
4KB

Download
memory/2836-17-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-18-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-21-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-22-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-23-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-24-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-25-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-26-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2836-27-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download