4ea1f2ecf7eb12896f2cbf8683dae8546d2b8dc43cf7710d68ce99e127c0a966

Analysis

max time kernel
11s
max time network
14s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06/02/2023, 22:33

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Reason

Machine shutdown

Report Analysis Logs

General

Target

[email protected]
Size

6.7MB
MD5

f2b7074e1543720a9a98fda660e02688
SHA1

1029492c1a12789d8af78d54adcb921e24b9e5ca
SHA256

4ea1f2ecf7eb12896f2cbf8683dae8546d2b8dc43cf7710d68ce99e127c0a966
SHA512

73f9548633bc38bab64b1dd5a01401ef7f5b139163bdf291cc475dbd2613510c4c5e4d7702ecdfa74b49f3c9eaed37ed23b9d8f0064c66123eb0769c8671c6ff
SSDEEP

3072:eaLA1++iCeFj0im6X/AXpT8vVMCcHVcdhghUuz1o9Y:fLJlC6j0CX4XmvWHVcd62uO9

Score

8^/10

evasion persistence ransomware

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

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)	\??\S:	[email protected]
File opened (read-only)	\??\T:	[email protected]
File opened (read-only)	\??\V:	[email protected]
File opened (read-only)	\??\A:	[email protected]
File opened (read-only)	\??\E:	[email protected]
File opened (read-only)	\??\I:	[email protected]
File opened (read-only)	\??\K:	[email protected]
File opened (read-only)	\??\R:	[email protected]
File opened (read-only)	\??\X:	[email protected]
File opened (read-only)	\??\Y:	[email protected]
File opened (read-only)	\??\Z:	[email protected]
File opened (read-only)	\??\B:	[email protected]
File opened (read-only)	\??\J:	[email protected]
File opened (read-only)	\??\M:	[email protected]
File opened (read-only)	\??\P:	[email protected]
File opened (read-only)	\??\U:	[email protected]
File opened (read-only)	\??\F:	[email protected]
File opened (read-only)	\??\N:	[email protected]
File opened (read-only)	\??\Q:	[email protected]
File opened (read-only)	\??\G:	[email protected]
File opened (read-only)	\??\H:	[email protected]
File opened (read-only)	\??\L:	[email protected]
File opened (read-only)	\??\O:	[email protected]
File opened (read-only)	\??\W:	[email protected]

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\AutoRestartShell = "0"	[email protected]

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\Desktop\Wallpaper	[email protected]

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

System Information Discovery
T1082

Kills process with taskkill 2 IoCs

evasion

pid	Process
1228	taskkill.exe
1960	taskkill.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\icon.ico"	[email protected]

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1228	taskkill.exe
Token: SeDebugPrivilege	1960	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1536	WMIC.exe
Token: SeSecurityPrivilege	1536	WMIC.exe
Token: SeTakeOwnershipPrivilege	1536	WMIC.exe
Token: SeLoadDriverPrivilege	1536	WMIC.exe
Token: SeSystemProfilePrivilege	1536	WMIC.exe
Token: SeSystemtimePrivilege	1536	WMIC.exe
Token: SeProfSingleProcessPrivilege	1536	WMIC.exe
Token: SeIncBasePriorityPrivilege	1536	WMIC.exe
Token: SeCreatePagefilePrivilege	1536	WMIC.exe
Token: SeBackupPrivilege	1536	WMIC.exe
Token: SeRestorePrivilege	1536	WMIC.exe
Token: SeShutdownPrivilege	1536	WMIC.exe
Token: SeDebugPrivilege	1536	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1536	WMIC.exe
Token: SeRemoteShutdownPrivilege	1536	WMIC.exe
Token: SeUndockPrivilege	1536	WMIC.exe
Token: SeManageVolumePrivilege	1536	WMIC.exe
Token: 33	1536	WMIC.exe
Token: 34	1536	WMIC.exe
Token: 35	1536	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1536	WMIC.exe
Token: SeSecurityPrivilege	1536	WMIC.exe
Token: SeTakeOwnershipPrivilege	1536	WMIC.exe
Token: SeLoadDriverPrivilege	1536	WMIC.exe
Token: SeSystemProfilePrivilege	1536	WMIC.exe
Token: SeSystemtimePrivilege	1536	WMIC.exe
Token: SeProfSingleProcessPrivilege	1536	WMIC.exe
Token: SeIncBasePriorityPrivilege	1536	WMIC.exe
Token: SeCreatePagefilePrivilege	1536	WMIC.exe
Token: SeBackupPrivilege	1536	WMIC.exe
Token: SeRestorePrivilege	1536	WMIC.exe
Token: SeShutdownPrivilege	1536	WMIC.exe
Token: SeDebugPrivilege	1536	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1536	WMIC.exe
Token: SeRemoteShutdownPrivilege	1536	WMIC.exe
Token: SeUndockPrivilege	1536	WMIC.exe
Token: SeManageVolumePrivilege	1536	WMIC.exe
Token: 33	1536	WMIC.exe
Token: 34	1536	WMIC.exe
Token: 35	1536	WMIC.exe
Token: SeIncreaseQuotaPrivilege	552	WMIC.exe
Token: SeSecurityPrivilege	552	WMIC.exe
Token: SeTakeOwnershipPrivilege	552	WMIC.exe
Token: SeLoadDriverPrivilege	552	WMIC.exe
Token: SeSystemProfilePrivilege	552	WMIC.exe
Token: SeSystemtimePrivilege	552	WMIC.exe
Token: SeProfSingleProcessPrivilege	552	WMIC.exe
Token: SeIncBasePriorityPrivilege	552	WMIC.exe
Token: SeCreatePagefilePrivilege	552	WMIC.exe
Token: SeBackupPrivilege	552	WMIC.exe
Token: SeRestorePrivilege	552	WMIC.exe
Token: SeShutdownPrivilege	552	WMIC.exe
Token: SeDebugPrivilege	552	WMIC.exe
Token: SeSystemEnvironmentPrivilege	552	WMIC.exe
Token: SeRemoteShutdownPrivilege	552	WMIC.exe
Token: SeUndockPrivilege	552	WMIC.exe
Token: SeManageVolumePrivilege	552	WMIC.exe
Token: 33	552	WMIC.exe
Token: 34	552	WMIC.exe
Token: 35	552	WMIC.exe
Token: SeIncreaseQuotaPrivilege	552	WMIC.exe
Token: SeSecurityPrivilege	552	WMIC.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1780	[email protected]
1780	[email protected]

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 1420	1780	[email protected]	28
PID 1780 wrote to memory of 1420	1780	[email protected]	28
PID 1780 wrote to memory of 1420	1780	[email protected]	28
PID 1780 wrote to memory of 1420	1780	[email protected]	28
PID 1420 wrote to memory of 1228	1420	cmd.exe	30
PID 1420 wrote to memory of 1228	1420	cmd.exe	30
PID 1420 wrote to memory of 1228	1420	cmd.exe	30
PID 1420 wrote to memory of 1228	1420	cmd.exe	30
PID 1420 wrote to memory of 1960	1420	cmd.exe	32
PID 1420 wrote to memory of 1960	1420	cmd.exe	32
PID 1420 wrote to memory of 1960	1420	cmd.exe	32
PID 1420 wrote to memory of 1960	1420	cmd.exe	32
PID 1420 wrote to memory of 1536	1420	cmd.exe	33
PID 1420 wrote to memory of 1536	1420	cmd.exe	33
PID 1420 wrote to memory of 1536	1420	cmd.exe	33
PID 1420 wrote to memory of 1536	1420	cmd.exe	33
PID 1420 wrote to memory of 552	1420	cmd.exe	34
PID 1420 wrote to memory of 552	1420	cmd.exe	34
PID 1420 wrote to memory of 552	1420	cmd.exe	34
PID 1420 wrote to memory of 552	1420	cmd.exe	34
PID 1420 wrote to memory of 1372	1420	cmd.exe	35
PID 1420 wrote to memory of 1372	1420	cmd.exe	35
PID 1420 wrote to memory of 1372	1420	cmd.exe	35
PID 1420 wrote to memory of 1372	1420	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\[email protected]
"C:\Users\Admin\AppData\Local\Temp\[email protected]"
1⤵
- Enumerates connected drives
- Modifies WinLogon
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\windl.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im explorer.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1228
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1960
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic useraccount where name='Admin' set FullName='UR NEXT'
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1536
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic useraccount where name='Admin' rename 'UR NEXT'
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:552
- - C:\Windows\SysWOW64\shutdown.exe
    shutdown /f /r /t 0
    3⤵
    PID:1372

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:568

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1692

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

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Downloads

C:\Users\Admin\AppData\Local\Temp\one.rtf

Filesize
403B

MD5
6fbd6ce25307749d6e0a66ebbc0264e7

SHA1
faee71e2eac4c03b96aabecde91336a6510fff60

SHA256
e152b106733d9263d3cf175f0b6197880d70acb753f8bde8035a3e4865b31690

SHA512
35a0d6d91178ec10619cf4d2fd44d3e57aa0266e1779e15b1eef6e9c359c77c384e0ffe4edb2cde980a6847e53f47733e6eacb72d46762066b3541dee3d29064

Download Submit
C:\Users\Admin\AppData\Local\Temp\rniw.exe

Filesize
76KB

MD5
9232120b6ff11d48a90069b25aa30abc

SHA1
97bb45f4076083fca037eee15d001fd284e53e47

SHA256
70faa0e1498461731f873d3594f20cbf2beaa6f123a06b66f9df59a9cdf862be

SHA512
b06688a9fc0b853d2895f11e812c48d5871f2793183fda5e9638ded22fc5dc1e813f174baedc980a1f0b6a7b0a65cd61f29bb16acc6dd45da62988eb012d6877

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C:\Users\Admin\AppData\Local\Temp\text.txt

Filesize
396B

MD5
9037ebf0a18a1c17537832bc73739109

SHA1
1d951dedfa4c172a1aa1aae096cfb576c1fb1d60

SHA256
38c889b5d7bdcb79bbcb55554c520a9ce74b5bfc29c19d1e4cb1419176c99f48

SHA512
4fb5c06089524c6dcd48b6d165cedb488e9efe2d27613289ef8834dbb6c010632d2bd5e3ac75f83b1d8024477ebdf05b9e0809602bbe1780528947c36e4de32f

Download Submit
C:\Users\Admin\AppData\Local\Temp\windl.bat

Filesize
771B

MD5
a9401e260d9856d1134692759d636e92

SHA1
4141d3c60173741e14f36dfe41588bb2716d2867

SHA256
b551fba71dfd526d4916ae277d8686d83fff36d22fcf6f18457924a070b30ef7

SHA512
5cbe38cdab0283b87d9a9875f7ba6fa4e8a7673d933ca05deddddbcf6cf793bd1bf34ac0add798b4ed59ab483e49f433ce4012f571a658bc0add28dd987a57b6

Download Submit
memory/568-73-0x000007FEFBF51000-0x000007FEFBF53000-memory.dmp

Filesize
8KB

Download
memory/1780-65-0x000000006BEB0000-0x000000006C1C2000-memory.dmp

Filesize
3.1MB

Download
memory/1780-66-0x0000000001130000-0x000000000113A000-memory.dmp

Filesize
40KB

Download
memory/1780-67-0x0000000001130000-0x000000000113A000-memory.dmp

Filesize
40KB

Download
memory/1780-69-0x00000000011A0000-0x00000000011AA000-memory.dmp

Filesize
40KB

Download
memory/1780-68-0x0000000001130000-0x000000000113A000-memory.dmp

Filesize
40KB

Download
memory/1780-54-0x00000000013A0000-0x0000000001A4E000-memory.dmp

Filesize
6.7MB

Download
memory/1780-62-0x0000000000C05000-0x0000000000C16000-memory.dmp

Filesize
68KB

Download
memory/1780-63-0x0000000000A00000-0x0000000000A0A000-memory.dmp

Filesize
40KB

Download
memory/1780-55-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

Download
memory/1780-74-0x00000000011B0000-0x00000000011B5000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads