2763c137488f401f90fd45a1a1e0d53a7c83690fae184c6c5fd1d6a0441fc812

Analysis

max time kernel
137s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2025, 15:13

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General

Target

Flarenew.exe
Size

91KB
MD5

6895b0fdc7ee57d6cdb403fde6fcca61
SHA1

38d38e0cb1baa03a1c67e694fe61f32a273d2476
SHA256

2763c137488f401f90fd45a1a1e0d53a7c83690fae184c6c5fd1d6a0441fc812
SHA512

66f734e0da1319026d2e170cca16f2845412c6abcae017da652ff0354494372d3207ba3e94f3c9f429594daea3add4f292f9268aecac09b71210ef67ae1e628a
SSDEEP

1536:D7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIf6wq4Od:f7DhdC6kzWypvaQ0FxyNTBf6Fx

Score

8^/10

defense_evasion discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 7 IoCs

exploit

pid	Process
2792	icacls.exe
224	icacls.exe
2372	icacls.exe
4688	icacls.exe
3156	takeown.exe
3596	takeown.exe
2280	icacls.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
512	attrib.exe

Modifies file permissions 1 TTPs 7 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2372	icacls.exe
4688	icacls.exe
3156	takeown.exe
3596	takeown.exe
2280	icacls.exe
2792	icacls.exe
224	icacls.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-1-5-21-869607583-2483572573-2297019986-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Security Update = "C:\\Windows\\System32\\flare.bat"	reg.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\System32\flare.bat	cmd.exe
File opened for modification	C:\Windows\System32\flare.bat	cmd.exe
File opened for modification	C:\Windows\System32\flare.bat	attrib.exe
File created	C:\Windows\System32\flare_helper.bat	cmd.exe
File opened for modification	C:\Windows\System32\flare_helper.bat	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Flarenew.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
2672	taskkill.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	taskkill.exe
Token: SeTakeOwnershipPrivilege	3156	takeown.exe
Token: SeTakeOwnershipPrivilege	3596	takeown.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4620 wrote to memory of 2412	4620	Flarenew.exe	88
PID 4620 wrote to memory of 2412	4620	Flarenew.exe	88
PID 2412 wrote to memory of 324	2412	cmd.exe	89
PID 2412 wrote to memory of 324	2412	cmd.exe	89
PID 2412 wrote to memory of 4296	2412	cmd.exe	90
PID 2412 wrote to memory of 4296	2412	cmd.exe	90
PID 4296 wrote to memory of 3776	4296	net.exe	91
PID 4296 wrote to memory of 3776	4296	net.exe	91
PID 2412 wrote to memory of 2672	2412	cmd.exe	92
PID 2412 wrote to memory of 2672	2412	cmd.exe	92
PID 2412 wrote to memory of 3156	2412	cmd.exe	94
PID 2412 wrote to memory of 3156	2412	cmd.exe	94
PID 2412 wrote to memory of 3596	2412	cmd.exe	95
PID 2412 wrote to memory of 3596	2412	cmd.exe	95
PID 2412 wrote to memory of 2280	2412	cmd.exe	96
PID 2412 wrote to memory of 2280	2412	cmd.exe	96
PID 2412 wrote to memory of 2792	2412	cmd.exe	97
PID 2412 wrote to memory of 2792	2412	cmd.exe	97
PID 2412 wrote to memory of 512	2412	cmd.exe	98
PID 2412 wrote to memory of 512	2412	cmd.exe	98
PID 2412 wrote to memory of 224	2412	cmd.exe	99
PID 2412 wrote to memory of 224	2412	cmd.exe	99
PID 2412 wrote to memory of 2372	2412	cmd.exe	100
PID 2412 wrote to memory of 2372	2412	cmd.exe	100
PID 2412 wrote to memory of 4688	2412	cmd.exe	101
PID 2412 wrote to memory of 4688	2412	cmd.exe	101
PID 2412 wrote to memory of 1976	2412	cmd.exe	102
PID 2412 wrote to memory of 1976	2412	cmd.exe	102
PID 2412 wrote to memory of 2184	2412	cmd.exe	103
PID 2412 wrote to memory of 2184	2412	cmd.exe	103

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
512	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Flarenew.exe
"C:\Users\Admin\AppData\Local\Temp\Flarenew.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4620
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8906.tmp\8907.tmp\8908.bat C:\Users\Admin\AppData\Local\Temp\Flarenew.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2412
- - C:\Windows\system32\msg.exe
    msg * "Fatal Error: Something unusual has occured. Maybe try restarting your PC?"
    3⤵
    PID:324
- - C:\Windows\system32\net.exe
    net session
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4296
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 session
      4⤵
      PID:3776
- - C:\Windows\system32\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2672
- - C:\Windows\system32\takeown.exe
    takeown /f C:\Windows\System32\taskmgr.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:3156
- - C:\Windows\system32\takeown.exe
    takeown /f C:\Windows\SysWOW64\taskmgr.exe
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:3596
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\System32\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2280
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\SysWOW64\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2792
- - C:\Windows\system32\attrib.exe
    attrib +s +h +r "C:\Windows\System32\flare.bat"
    3⤵
    - Sets file to hidden
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:512
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Everyone:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:224
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny SYSTEM:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2372
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Administrators:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4688
- - C:\Windows\system32\reg.exe
    reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Security Update" /t REG_SZ /d "C:\Windows\System32\flare.bat" /f
    3⤵
    - Adds Run key to start application
    PID:1976
- - C:\Windows\system32\cmd.exe
    cmd.exe
    3⤵
    PID:2184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

File and Directory Permissions Modification

T1222

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\8906.tmp\8907.tmp\8908.bat

Filesize
2KB

MD5
659da335d00865d3b3d471fb5a3f20ec

SHA1
f2268458ba0fd0efaea875b0ab7e360c6634f24b

SHA256
ed3331f8a9950119a9bb9a4172d0369c70bbd5cb1ffab046dca09078456f1e24

SHA512
6aead76fd88b3cad9ca990e3100691619b212b3b5785851dc4f8ef243501b5b2deafcd587e802f3cffb9d0199c47317df9bd184caa8ddeca64e3e474d666fe7d

Download Submit
C:\Windows\System32\flare.bat

Filesize
91KB

MD5
6895b0fdc7ee57d6cdb403fde6fcca61

SHA1
38d38e0cb1baa03a1c67e694fe61f32a273d2476

SHA256
2763c137488f401f90fd45a1a1e0d53a7c83690fae184c6c5fd1d6a0441fc812

SHA512
66f734e0da1319026d2e170cca16f2845412c6abcae017da652ff0354494372d3207ba3e94f3c9f429594daea3add4f292f9268aecac09b71210ef67ae1e628a

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads