5e8d75ee062d71cd88fbb770398ad01232e13850b5ceb565452247c95cc3dd98

Analysis

max time kernel
104s
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, 15:04

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General

Target

Flarenew.exe
Size

91KB
MD5

417d59e4b342431a6995d71957b06f28
SHA1

6b5503229398752a8b40af7515ca6dd00768d153
SHA256

5e8d75ee062d71cd88fbb770398ad01232e13850b5ceb565452247c95cc3dd98
SHA512

884ecb113ef000f06c7a815536b03c982472b202bd3d65db05d7f45aba4d406dc9bcda8443838c26e8ce68fb8f451ef87e75fbfba003968c6a3418bb9f0a7e9f
SSDEEP

1536:j7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfhwScrHOR:/7DhdC6kzWypvaQ0FxyNTBfhRcri

Score

8^/10

defense_evasion discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 16 IoCs

exploit

pid	Process
2912	takeown.exe
4380	icacls.exe
4460	icacls.exe
4420	icacls.exe
1276	icacls.exe
3388	icacls.exe
4516	icacls.exe
4680	icacls.exe
5052	icacls.exe
1152	icacls.exe
3912	icacls.exe
1032	icacls.exe
2432	takeown.exe
3392	icacls.exe
4496	icacls.exe
4540	icacls.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
864	attrib.exe
3868	attrib.exe

Modifies file permissions 1 TTPs 16 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4420	icacls.exe
1276	icacls.exe
5052	icacls.exe
1032	icacls.exe
4380	icacls.exe
4680	icacls.exe
2432	takeown.exe
3388	icacls.exe
3912	icacls.exe
3392	icacls.exe
4516	icacls.exe
2912	takeown.exe
4496	icacls.exe
4460	icacls.exe
4540	icacls.exe
1152	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-1-5-21-446031748-3036493239-2009529691-1000\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
3804	taskkill.exe

Opens file in notepad (likely ransom note) 2 IoCs

ransomware

pid	Process
4432	notepad.exe
3500	notepad.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3804	taskkill.exe
Token: SeTakeOwnershipPrivilege	2432	takeown.exe
Token: SeTakeOwnershipPrivilege	2912	takeown.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2024	1540	Flarenew.exe	87
PID 1540 wrote to memory of 2024	1540	Flarenew.exe	87
PID 2024 wrote to memory of 2836	2024	cmd.exe	88
PID 2024 wrote to memory of 2836	2024	cmd.exe	88
PID 2024 wrote to memory of 5536	2024	cmd.exe	89
PID 2024 wrote to memory of 5536	2024	cmd.exe	89
PID 5536 wrote to memory of 1864	5536	net.exe	90
PID 5536 wrote to memory of 1864	5536	net.exe	90
PID 2024 wrote to memory of 3804	2024	cmd.exe	91
PID 2024 wrote to memory of 3804	2024	cmd.exe	91
PID 2024 wrote to memory of 2432	2024	cmd.exe	94
PID 2024 wrote to memory of 2432	2024	cmd.exe	94
PID 2024 wrote to memory of 2912	2024	cmd.exe	95
PID 2024 wrote to memory of 2912	2024	cmd.exe	95
PID 2024 wrote to memory of 3388	2024	cmd.exe	96
PID 2024 wrote to memory of 3388	2024	cmd.exe	96
PID 2024 wrote to memory of 3912	2024	cmd.exe	97
PID 2024 wrote to memory of 3912	2024	cmd.exe	97
PID 2024 wrote to memory of 864	2024	cmd.exe	99
PID 2024 wrote to memory of 864	2024	cmd.exe	99
PID 2024 wrote to memory of 1032	2024	cmd.exe	100
PID 2024 wrote to memory of 1032	2024	cmd.exe	100
PID 2024 wrote to memory of 3392	2024	cmd.exe	101
PID 2024 wrote to memory of 3392	2024	cmd.exe	101
PID 2024 wrote to memory of 4380	2024	cmd.exe	102
PID 2024 wrote to memory of 4380	2024	cmd.exe	102
PID 2024 wrote to memory of 4364	2024	cmd.exe	103
PID 2024 wrote to memory of 4364	2024	cmd.exe	103
PID 2024 wrote to memory of 4412	2024	cmd.exe	104
PID 2024 wrote to memory of 4412	2024	cmd.exe	104
PID 2024 wrote to memory of 4432	2024	cmd.exe	105
PID 2024 wrote to memory of 4432	2024	cmd.exe	105
PID 2024 wrote to memory of 4496	2024	cmd.exe	106
PID 2024 wrote to memory of 4496	2024	cmd.exe	106
PID 2024 wrote to memory of 4516	2024	cmd.exe	107
PID 2024 wrote to memory of 4516	2024	cmd.exe	107
PID 2024 wrote to memory of 4680	2024	cmd.exe	108
PID 2024 wrote to memory of 4680	2024	cmd.exe	108
PID 2024 wrote to memory of 4460	2024	cmd.exe	109
PID 2024 wrote to memory of 4460	2024	cmd.exe	109
PID 2024 wrote to memory of 4540	2024	cmd.exe	110
PID 2024 wrote to memory of 4540	2024	cmd.exe	110
PID 2024 wrote to memory of 4420	2024	cmd.exe	111
PID 2024 wrote to memory of 4420	2024	cmd.exe	111
PID 2024 wrote to memory of 5052	2024	cmd.exe	112
PID 2024 wrote to memory of 5052	2024	cmd.exe	112
PID 2024 wrote to memory of 1276	2024	cmd.exe	113
PID 2024 wrote to memory of 1276	2024	cmd.exe	113
PID 2024 wrote to memory of 1152	2024	cmd.exe	114
PID 2024 wrote to memory of 1152	2024	cmd.exe	114
PID 2024 wrote to memory of 3868	2024	cmd.exe	115
PID 2024 wrote to memory of 3868	2024	cmd.exe	115
PID 2024 wrote to memory of 3500	2024	cmd.exe	116
PID 2024 wrote to memory of 3500	2024	cmd.exe	116

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
864	attrib.exe
3868	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:1540
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\60CD.tmp\60CE.tmp\60CF.bat C:\Users\Admin\AppData\Local\Temp\Flarenew.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Windows\system32\msg.exe
    msg * "Fatal Error: You're not supposed to run this file."
    3⤵
    PID:2836
- - C:\Windows\system32\net.exe
    net session
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5536
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 session
      4⤵
      PID:1864
- - C:\Windows\system32\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3804
- - 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:2432
- - 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:2912
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\System32\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3388
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\SysWOW64\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3912
- - 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:864
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Everyone:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1032
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny SYSTEM:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3392
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Administrators:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4380
- - 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:4364
- - C:\Windows\system32\cmd.exe
    cmd.exe
    3⤵
    PID:4412
- - C:\Windows\system32\notepad.exe
    notepad "C:\Users\Admin\Desktop\flare_warning.txt"
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:4432
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\CON" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4496
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\PRN" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4516
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\AUX" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4680
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\NUL" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4460
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM1" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4540
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM2" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4420
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM3" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:5052
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\LPT1" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1276
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\LPT2" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1152
- - C:\Windows\system32\attrib.exe
    attrib +s +h "C:\Users\Admin\Desktop\LPT2"
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:3868
- - C:\Windows\system32\notepad.exe
    notepad "C:\Users\Admin\Desktop\LPT2\lockfile.txt"
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:3500

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\60CD.tmp\60CE.tmp\60CF.bat

Filesize
2KB

MD5
60b0fa85babe1b21db7fed64d3d12efc

SHA1
5e3016ddb412d50c6d85aec64f7d2efa9444ac94

SHA256
3293710c28c45a67fc1d393524cfca28495ece81c4b0fcbabecc6bad1f1f1181

SHA512
3404bca7e212fb2777448e2ae2ae8c3e7492e229673ea8b16325032836f3b47707c8404d2c8b0a1a4cc454d8aca031b029f863712747e5c8de34bccae4fb89cb

Download Submit
C:\Users\Admin\Desktop\LPT2\lockfile.txt

Filesize
16B

MD5
35519859078faf1bb9ff9aa6d97e02f7

SHA1
f62fa3cba186ac4fc65321e5b24f3b3c6713e168

SHA256
c76a191235beca08d9290c53f8832be67b1b9671269674ece289e3162157d2b1

SHA512
674ed9c45e4070cd2de21e7a74fe8327ad3db7234a306988fd579e126f6c37ce5a39fa45cbf2da818c81bf7dfcf160f4f993f9fb3d3a85a1530101564ced9df9

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

Filesize
91KB

MD5
417d59e4b342431a6995d71957b06f28

SHA1
6b5503229398752a8b40af7515ca6dd00768d153

SHA256
5e8d75ee062d71cd88fbb770398ad01232e13850b5ceb565452247c95cc3dd98

SHA512
884ecb113ef000f06c7a815536b03c982472b202bd3d65db05d7f45aba4d406dc9bcda8443838c26e8ce68fb8f451ef87e75fbfba003968c6a3418bb9f0a7e9f

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads