a463eb4c2dc0560ae262590dedd5b515b68d8c85d11b6723d5a5f01ccef07279

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 01:01

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General

Target

0963173dfe6d81f12f5c44d02694824b.exe
Size

444KB
MD5

0963173dfe6d81f12f5c44d02694824b
SHA1

5201a60a45a92229d1195f2cea934ae3d102956b
SHA256

a463eb4c2dc0560ae262590dedd5b515b68d8c85d11b6723d5a5f01ccef07279
SHA512

b9185a5cf557a46d2d89a4e9d11a8777995a687ac56e5aabe6e9ef291c240827292f2069092fff23b7b10ea37cec4117b9ab33c1b537dc31ab79bdac8983b32e
SSDEEP

12288:JBLaX1nUCMdSyeIljHomlgHjDp1Cncmeap7pfCyaX8BdDn:JBOFSekIzHzEeap7p/asBdD

Score

8^/10

evasion persistence upx

Malware Config

Signatures

Creates new service(s) 1 TTPs
persistence

Windows Service
T1543.003

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Windows Service

T1543.003

pid	Process
1524	netsh.exe

Stops running service(s) 3 TTPs
evasion

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Executes dropped EXE 2 IoCs

pid	Process
2712	iecheck.exe
1644	iecheck.exe

UPX packed file 15 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/files/0x00070000000122c9-3.dat	upx
behavioral1/memory/1708-4-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/2712-5-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-9-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/2712-12-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1708-13-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-14-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/2712-15-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-16-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-17-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-19-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-21-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-23-0x0000000000400000-0x0000000000555000-memory.dmp	upx
behavioral1/memory/1644-25-0x0000000000400000-0x0000000000555000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0963173dfe6d81f12f5c44d02694824b.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\0963173dfe6d81f12f5c44d02694824b.exe\""	0963173dfe6d81f12f5c44d02694824b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\iecheck.exe	0963173dfe6d81f12f5c44d02694824b.exe
File opened for modification	C:\Windows\iecheck.exe	0963173dfe6d81f12f5c44d02694824b.exe

Launches sc.exe 2 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2652	sc.exe
2556	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
2408	taskkill.exe

Modifies data under HKEY_USERS 23 IoCs

description	ioc	Process
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\tsgqec.dll,-103 = "Microsoft Corporation"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	iecheck.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\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,-100 = "RD Gateway Quarantine Enforcement Client"	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\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\eapqec.dll,-102 = "1.0"	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 (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	iecheck.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	iecheck.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\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,-100 = "EAP Quarantine Enforcement Client"	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
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Classes\Local Settings\MuiCache\2D\52C64B7E\@%SystemRoot%\system32\dhcpqec.dll,-103 = "1.0"	netsh.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	iecheck.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\napipsec.dll,-4 = "1.0"	netsh.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	iecheck.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	iecheck.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1708	0963173dfe6d81f12f5c44d02694824b.exe
2712	iecheck.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	taskkill.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1708	0963173dfe6d81f12f5c44d02694824b.exe
2712	iecheck.exe
1644	iecheck.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 2408	1708	0963173dfe6d81f12f5c44d02694824b.exe	21
PID 1708 wrote to memory of 2408	1708	0963173dfe6d81f12f5c44d02694824b.exe	21
PID 1708 wrote to memory of 2408	1708	0963173dfe6d81f12f5c44d02694824b.exe	21
PID 1708 wrote to memory of 2408	1708	0963173dfe6d81f12f5c44d02694824b.exe	21
PID 1708 wrote to memory of 2252	1708	0963173dfe6d81f12f5c44d02694824b.exe	20
PID 1708 wrote to memory of 2252	1708	0963173dfe6d81f12f5c44d02694824b.exe	20
PID 1708 wrote to memory of 2252	1708	0963173dfe6d81f12f5c44d02694824b.exe	20
PID 1708 wrote to memory of 2252	1708	0963173dfe6d81f12f5c44d02694824b.exe	20
PID 2252 wrote to memory of 1728	2252	net.exe	18
PID 2252 wrote to memory of 1728	2252	net.exe	18
PID 2252 wrote to memory of 1728	2252	net.exe	18
PID 2252 wrote to memory of 1728	2252	net.exe	18
PID 1708 wrote to memory of 2652	1708	0963173dfe6d81f12f5c44d02694824b.exe	35
PID 1708 wrote to memory of 2652	1708	0963173dfe6d81f12f5c44d02694824b.exe	35
PID 1708 wrote to memory of 2652	1708	0963173dfe6d81f12f5c44d02694824b.exe	35
PID 1708 wrote to memory of 2652	1708	0963173dfe6d81f12f5c44d02694824b.exe	35
PID 1708 wrote to memory of 2556	1708	0963173dfe6d81f12f5c44d02694824b.exe	36
PID 1708 wrote to memory of 2556	1708	0963173dfe6d81f12f5c44d02694824b.exe	36
PID 1708 wrote to memory of 2556	1708	0963173dfe6d81f12f5c44d02694824b.exe	36
PID 1708 wrote to memory of 2556	1708	0963173dfe6d81f12f5c44d02694824b.exe	36
PID 1708 wrote to memory of 2924	1708	0963173dfe6d81f12f5c44d02694824b.exe	38
PID 1708 wrote to memory of 2924	1708	0963173dfe6d81f12f5c44d02694824b.exe	38
PID 1708 wrote to memory of 2924	1708	0963173dfe6d81f12f5c44d02694824b.exe	38
PID 1708 wrote to memory of 2924	1708	0963173dfe6d81f12f5c44d02694824b.exe	38
PID 2924 wrote to memory of 2684	2924	net.exe	40
PID 2924 wrote to memory of 2684	2924	net.exe	40
PID 2924 wrote to memory of 2684	2924	net.exe	40
PID 2924 wrote to memory of 2684	2924	net.exe	40
PID 2712 wrote to memory of 1644	2712	iecheck.exe	42
PID 2712 wrote to memory of 1644	2712	iecheck.exe	42
PID 2712 wrote to memory of 1644	2712	iecheck.exe	42
PID 2712 wrote to memory of 1644	2712	iecheck.exe	42
PID 1644 wrote to memory of 1524	1644	iecheck.exe	44
PID 1644 wrote to memory of 1524	1644	iecheck.exe	44
PID 1644 wrote to memory of 1524	1644	iecheck.exe	44
PID 1644 wrote to memory of 1524	1644	iecheck.exe	44

C:\Users\Admin\AppData\Local\Temp\0963173dfe6d81f12f5c44d02694824b.exe
"C:\Users\Admin\AppData\Local\Temp\0963173dfe6d81f12f5c44d02694824b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop "srviecheck"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2252
- C:\Windows\SysWOW64\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /F /IM iecheck.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2408
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" delete "srviecheck"
  2⤵
  - Launches sc.exe
  PID:2652
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create "srviecheck" binpath= "C:\Windows\iecheck.exe srv" start= "auto"
  2⤵
  - Launches sc.exe
  PID:2556
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" start "srviecheck"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start "srviecheck"
    3⤵
    PID:2684

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop "srviecheck"
1⤵
PID:1728

C:\Windows\iecheck.exe
C:\Windows\iecheck.exe srv
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\iecheck.exe
  "C:\Windows\iecheck.exe" stand
  2⤵
  - Executes dropped EXE
  - Modifies data under HKEY_USERS
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1644
- - C:\Windows\SysWOW64\netsh.exe
    "C:\Windows\System32\netsh.exe" firewall set opmode mode=disable
    3⤵
    - Modifies Windows Firewall
    - Modifies data under HKEY_USERS
    PID:1524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Service Stop

T1489

Replay Monitor

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Downloads

C:\Windows\iecheck.exe

Filesize
444KB

MD5
0963173dfe6d81f12f5c44d02694824b

SHA1
5201a60a45a92229d1195f2cea934ae3d102956b

SHA256
a463eb4c2dc0560ae262590dedd5b515b68d8c85d11b6723d5a5f01ccef07279

SHA512
b9185a5cf557a46d2d89a4e9d11a8777995a687ac56e5aabe6e9ef291c240827292f2069092fff23b7b10ea37cec4117b9ab33c1b537dc31ab79bdac8983b32e

Download Submit
memory/1644-16-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-35-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-37-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-33-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-31-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-9-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-10-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/1644-29-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-27-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-14-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-39-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-25-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-21-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-19-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-17-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1644-23-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1708-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1708-13-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1708-0-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/1708-4-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/2712-12-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/2712-6-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2712-5-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download
memory/2712-15-0x0000000000400000-0x0000000000555000-memory.dmp

Filesize
1.3MB

Download