4bcbb8983fe7425976c5a1789deff73fb138e80981f5ebfef1f835bcc6757760

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:18

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General

Target

f6ac1ea5c19284854998f25244a12f25.exe
Size

654KB
MD5

f6ac1ea5c19284854998f25244a12f25
SHA1

99fbd0be6020def40eedb33c453c9e516d39ddb4
SHA256

10478f3361a6cdb5ce48bf9490ea60505e90ef4f9649973ca35bdcf43af1f4b9
SHA512

b2415c9af9284eebc053ef56c82ad15043b713d38c6fca1cabdbeff0d726f9f956bf56655c60f0d6ec95ef5150e50da1a539cbef5502dd032399721a545badda
SSDEEP

12288:slGjIbKjk/x78IANpdqAUJeBrwwsRpIFgVXC0xi8/+b7LegZSv:uGcbKj+d0dzAZVXObfeoG

Score

8^/10

execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4836	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
5052	Item.exe

Loads dropped DLL 1 IoCs

pid	Process
5016	taskeng.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5052 set thread context of 2452	5052	Item.exe	38

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4836	powershell.exe
5052	Item.exe
5052	Item.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	f6ac1ea5c19284854998f25244a12f25.exe
Token: SeDebugPrivilege	4836	powershell.exe
Token: SeDebugPrivilege	5052	Item.exe
Token: SeDebugPrivilege	2452	AddInUtil.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 4836	4804	taskeng.exe	34
PID 4804 wrote to memory of 4836	4804	taskeng.exe	34
PID 4804 wrote to memory of 4836	4804	taskeng.exe	34
PID 5016 wrote to memory of 5052	5016	taskeng.exe	37
PID 5016 wrote to memory of 5052	5016	taskeng.exe	37
PID 5016 wrote to memory of 5052	5016	taskeng.exe	37
PID 5052 wrote to memory of 2452	5052	Item.exe	38
PID 5052 wrote to memory of 2452	5052	Item.exe	38
PID 5052 wrote to memory of 2452	5052	Item.exe	38
PID 5052 wrote to memory of 2452	5052	Item.exe	38
PID 5052 wrote to memory of 2452	5052	Item.exe	38
PID 5052 wrote to memory of 2452	5052	Item.exe	38
PID 5052 wrote to memory of 2452	5052	Item.exe	38

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\f6ac1ea5c19284854998f25244a12f25.exe
"C:\Users\Admin\AppData\Local\Temp\f6ac1ea5c19284854998f25244a12f25.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2972

C:\Windows\system32\taskeng.exe
taskeng.exe {4A6ED024-E273-44C0-97A1-B3E767C31826} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:S4U:
1⤵
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -enc 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
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4836

C:\Windows\system32\taskeng.exe
taskeng.exe {A07C16D3-1072-47AA-99F9-DD8B2E248090} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Users\Admin\AppData\Roaming\IsFixedSize\Item.exe
  C:\Users\Admin\AppData\Roaming\IsFixedSize\Item.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exe
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\IsFixedSize\Item.exe

Filesize
654KB

MD5
f6ac1ea5c19284854998f25244a12f25

SHA1
99fbd0be6020def40eedb33c453c9e516d39ddb4

SHA256
10478f3361a6cdb5ce48bf9490ea60505e90ef4f9649973ca35bdcf43af1f4b9

SHA512
b2415c9af9284eebc053ef56c82ad15043b713d38c6fca1cabdbeff0d726f9f956bf56655c60f0d6ec95ef5150e50da1a539cbef5502dd032399721a545badda

Download Submit
memory/2452-5597-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2972-27-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-59-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-4-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-39-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-7-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-9-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-13-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-15-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-45-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-57-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-63-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-61-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-25-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-55-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-53-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-51-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-49-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-47-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-43-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-41-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-31-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-29-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-2-0x000000001BB70000-0x000000001BC7A000-memory.dmp

Filesize
1.0MB

Download
memory/2972-0-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

Filesize
4KB

Download
memory/2972-35-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-19-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-17-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-11-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-67-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-66-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-37-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-23-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-33-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-5-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-21-0x000000001BB70000-0x000000001BC76000-memory.dmp

Filesize
1.0MB

Download
memory/2972-2787-0x0000000000710000-0x000000000075C000-memory.dmp

Filesize
304KB

Download
memory/2972-2786-0x000000001BC80000-0x000000001BCD6000-memory.dmp

Filesize
344KB

Download
memory/2972-2788-0x000000001BAA0000-0x000000001BAF4000-memory.dmp

Filesize
336KB

Download
memory/2972-1-0x0000000000080000-0x0000000000128000-memory.dmp

Filesize
672KB

Download
memory/2972-3-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

Filesize
9.9MB

Download
memory/2972-2799-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

Filesize
9.9MB

Download
memory/2972-2796-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

Filesize
4KB

Download
memory/4836-2795-0x0000000001340000-0x0000000001348000-memory.dmp

Filesize
32KB

Download
memory/4836-2794-0x000000001A1E0000-0x000000001A4C2000-memory.dmp

Filesize
2.9MB

Download
memory/4836-2793-0x0000000001440000-0x00000000014C0000-memory.dmp

Filesize
512KB

Download
memory/5052-2804-0x0000000000F40000-0x0000000000FE8000-memory.dmp

Filesize
672KB

Download
memory/5052-5587-0x0000000000E60000-0x0000000000EB4000-memory.dmp

Filesize
336KB

Download