c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

General

Target

1.exe
Size

4.3MB
MD5

3f005ce85f08a09e93679254e35df782
SHA1

e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d
SHA256

c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870
SHA512

cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1
SSDEEP

49152:m6+OL0vnSGYGY+9C4OXk9PhRBPhILfF/QxamXYOCs5EbNfylJTEXKobB1:m7jHTXXREYJgXK

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2008	WindowsAutoUpdate.exe

Loads dropped DLL 2 IoCs

pid	Process
2300	taskeng.exe
2300	taskeng.exe

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\USER\S-1-5-21-3425689832-2386927309-2650718742-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsAutoUpdate.exe = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsAutoUpdate.exe"	1.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2936	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2936	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2936	2816	1.exe	28
PID 2816 wrote to memory of 2936	2816	1.exe	28
PID 2816 wrote to memory of 2936	2816	1.exe	28
PID 2936 wrote to memory of 2700	2936	powershell.exe	30
PID 2936 wrote to memory of 2700	2936	powershell.exe	30
PID 2936 wrote to memory of 2700	2936	powershell.exe	30
PID 2300 wrote to memory of 2008	2300	taskeng.exe	32
PID 2300 wrote to memory of 2008	2300	taskeng.exe	32
PID 2300 wrote to memory of 2008	2300	taskeng.exe	32

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell "" "SCHTASKS.exe /Create /SC MINUTE /ED 12/12/2030 /TN Soft /TR C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\system32\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Create /SC MINUTE /ED 12/12/2030 /TN Soft /TR C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe
    3⤵
    - Creates scheduled task(s)
    PID:2700

C:\Windows\system32\taskeng.exe
taskeng.exe {866F404E-D00C-45DD-BE64-8B07DEEE185D} S-1-5-21-3425689832-2386927309-2650718742-1000:AWDHTXES\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe
  C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe
  2⤵
  - Executes dropped EXE
  PID:2008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe

Filesize
4.3MB

MD5
3f005ce85f08a09e93679254e35df782

SHA1
e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d

SHA256
c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

SHA512
cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1

Download Submit
C:\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe

Filesize
4.3MB

MD5
3f005ce85f08a09e93679254e35df782

SHA1
e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d

SHA256
c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

SHA512
cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1

Download Submit
\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe

Filesize
4.3MB

MD5
3f005ce85f08a09e93679254e35df782

SHA1
e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d

SHA256
c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

SHA512
cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1

Download Submit
\Users\Admin\AppData\Roaming\WindowsAutoUpdate.exe

Filesize
4.3MB

MD5
3f005ce85f08a09e93679254e35df782

SHA1
e0ac1e6e68a1a79edd16215447a6c8c3ab068b5d

SHA256
c43f913e75a18bcddedf040beec903b94336734537ca6816d8174e8237822870

SHA512
cbfafb5a2422f2c5488915d30908f37f9a152e1901d53ce2b11542fefce754c141eef46d2d9e52ddc27b9f6ec34b0d6d2c56f3c08532a8ee9636804554c80db1

Download Submit
memory/2936-8-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/2936-10-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/2936-11-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/2936-12-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/2936-13-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2936-9-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2936-5-0x000000001B250000-0x000000001B532000-memory.dmp

Filesize
2.9MB

Download
memory/2936-7-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

Filesize
9.6MB

Download
memory/2936-6-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads