7a5fc736a94166592a370b8b311656517e2df180917bbc61fc688eb7df0915cb

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
2136	powershell.exe
1388	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
2176	svchost.exe
1928	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2464	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
2184	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1640	Selfconvened.exe
2136	powershell.exe
1388	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1640	Selfconvened.exe
Token: SeDebugPrivilege	2136	powershell.exe
Token: SeDebugPrivilege	1388	powershell.exe
Token: SeDebugPrivilege	2176	svchost.exe
Token: SeDebugPrivilege	1928	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1640 wrote to memory of 2684	1640	Selfconvened.exe	32
PID 1640 wrote to memory of 2684	1640	Selfconvened.exe	32
PID 1640 wrote to memory of 2684	1640	Selfconvened.exe	32
PID 1640 wrote to memory of 2184	1640	Selfconvened.exe	34
PID 1640 wrote to memory of 2184	1640	Selfconvened.exe	34
PID 1640 wrote to memory of 2184	1640	Selfconvened.exe	34
PID 2684 wrote to memory of 2136	2684	cmd.exe	35
PID 2684 wrote to memory of 2136	2684	cmd.exe	35
PID 2684 wrote to memory of 2136	2684	cmd.exe	35
PID 2684 wrote to memory of 1388	2684	cmd.exe	37
PID 2684 wrote to memory of 1388	2684	cmd.exe	37
PID 2684 wrote to memory of 1388	2684	cmd.exe	37
PID 2464 wrote to memory of 2176	2464	taskeng.exe	39
PID 2464 wrote to memory of 2176	2464	taskeng.exe	39
PID 2464 wrote to memory of 2176	2464	taskeng.exe	39
PID 2464 wrote to memory of 1928	2464	taskeng.exe	40
PID 2464 wrote to memory of 1928	2464	taskeng.exe	40
PID 2464 wrote to memory of 1928	2464	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:1640
- 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:2684
- - 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:2136
- - 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:1388
- 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:2184

C:\Windows\system32\taskeng.exe
taskeng.exe {B53CE9A1-A763-4E49-804E-7280C2002443} S-1-5-21-2872745919-2748461613-2989606286-1000:CCJBVTGQ\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\system32\WindowsPro\svchost.exe
  C:\Windows\system32\WindowsPro\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2176
- C:\Windows\system32\WindowsPro\svchost.exe
  C:\Windows\system32\WindowsPro\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1928

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
37627b46d7b7011ae982e756f467012c

SHA1
b6fa4500e59483379b59119d04d558d7443c29d6

SHA256
d6f3e123fa17755231878803a9c20309dfaf6ddab3886b56317614af3f1cff9f

SHA512
01401a7aeda2b4dd6c449e9520a31dc3b7151f8494adf5dd57642ec5810afd612fc840d358610537f98c8e344431e95a3403d677a12ba80e4e60b944c5c640be

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

Filesize
10.6MB

MD5
b0504bad3a175be5267a7ee70e5e1262

SHA1
cbb00488bcdb43d526a416a56df12de5bd891218

SHA256
030742e8d20a89db614908d35d75a3a40f313d207ae58dbc97d280c8013d0294

SHA512
2b6b0713a04e5cac1c52c56a763a196797b0cd48f07834dd72d48b96467a5df199e878505f9793fa1aa58e946a02054409754b59db677bd9002d8bc0fb73bd68

Download Submit
memory/1388-29-0x0000000002680000-0x0000000002688000-memory.dmp

Filesize
32KB

Download
memory/1388-28-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/1640-5-0x000007FEF5883000-0x000007FEF5884000-memory.dmp

Filesize
4KB

Download
memory/1640-1-0x0000000000BE0000-0x000000000105A000-memory.dmp

Filesize
4.5MB

Download
memory/1640-6-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-7-0x00000000211C0000-0x0000000021568000-memory.dmp

Filesize
3.7MB

Download
memory/1640-8-0x0000000021570000-0x0000000021814000-memory.dmp

Filesize
2.6MB

Download
memory/1640-9-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-10-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-11-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-30-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-0-0x000007FEF5883000-0x000007FEF5884000-memory.dmp

Filesize
4KB

Download
memory/1640-4-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-3-0x000007FEF5880000-0x000007FEF626C000-memory.dmp

Filesize
9.9MB

Download
memory/1640-2-0x000000001C5C0000-0x000000001C978000-memory.dmp

Filesize
3.7MB

Download
memory/1928-37-0x00000000009D0000-0x0000000000E4A000-memory.dmp

Filesize
4.5MB

Download
memory/2136-21-0x00000000022A0000-0x00000000022A8000-memory.dmp

Filesize
32KB

Download
memory/2136-20-0x000000001B660000-0x000000001B942000-memory.dmp

Filesize
2.9MB

Download
memory/2176-35-0x0000000000210000-0x000000000068A000-memory.dmp

Filesize
4.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads