99c985b3b072b5a1a793187cef71c494c6c4e9b963e77c0c3fcbaca46329c002

Analysis

max time kernel
12s
max time network
4s
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, 15:12

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General

Target

Flarenew.exe
Size

91KB
MD5

1a137b783a1a39509329236672fe24cc
SHA1

f6ecd8fb3f52fe31c357b2c2a23a68aa0a0989a7
SHA256

99c985b3b072b5a1a793187cef71c494c6c4e9b963e77c0c3fcbaca46329c002
SHA512

a9a79f413df02f331177f3833424f48e29edf0f95dbffc0e9f03d5b371d92f60e41f00d12a9667a11e5ca9f80548b4d127fec11862e869b512ab938bdd1f3d72
SSDEEP

1536:L7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIf0wUEOE:H7DhdC6kzWypvaQ0FxyNTBf0n8

Score

8^/10

defense_evasion discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 16 IoCs

exploit

pid	Process
2536	icacls.exe
728	icacls.exe
4916	icacls.exe
4976	icacls.exe
3396	icacls.exe
3524	icacls.exe
2820	icacls.exe
2468	icacls.exe
1740	icacls.exe
3572	icacls.exe
3424	icacls.exe
4812	icacls.exe
4460	icacls.exe
2648	icacls.exe
1592	takeown.exe
768	takeown.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
2708	attrib.exe
4832	attrib.exe

Modifies file permissions 1 TTPs 16 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2820	icacls.exe
2468	icacls.exe
3572	icacls.exe
4916	icacls.exe
3396	icacls.exe
3524	icacls.exe
2536	icacls.exe
2648	icacls.exe
728	icacls.exe
1592	takeown.exe
1740	icacls.exe
3424	icacls.exe
4812	icacls.exe
4976	icacls.exe
4460	icacls.exe
768	takeown.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-1-5-21-805952410-2104024357-1716932545-1000\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 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
File created	C:\Windows\System32\flare.bat	cmd.exe
File opened for modification	C:\Windows\System32\flare.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
1336	taskkill.exe

Opens file in notepad (likely ransom note) 2 IoCs

ransomware

pid	Process
1988	notepad.exe
916	notepad.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	taskkill.exe
Token: SeTakeOwnershipPrivilege	1592	takeown.exe
Token: SeTakeOwnershipPrivilege	768	takeown.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 4720	1472	Flarenew.exe	90
PID 1472 wrote to memory of 4720	1472	Flarenew.exe	90
PID 4720 wrote to memory of 2964	4720	cmd.exe	91
PID 4720 wrote to memory of 2964	4720	cmd.exe	91
PID 4720 wrote to memory of 1820	4720	cmd.exe	92
PID 4720 wrote to memory of 1820	4720	cmd.exe	92
PID 1820 wrote to memory of 3000	1820	net.exe	93
PID 1820 wrote to memory of 3000	1820	net.exe	93
PID 4720 wrote to memory of 1336	4720	cmd.exe	94
PID 4720 wrote to memory of 1336	4720	cmd.exe	94
PID 4720 wrote to memory of 1592	4720	cmd.exe	96
PID 4720 wrote to memory of 1592	4720	cmd.exe	96
PID 4720 wrote to memory of 768	4720	cmd.exe	97
PID 4720 wrote to memory of 768	4720	cmd.exe	97
PID 4720 wrote to memory of 2468	4720	cmd.exe	98
PID 4720 wrote to memory of 2468	4720	cmd.exe	98
PID 4720 wrote to memory of 1740	4720	cmd.exe	99
PID 4720 wrote to memory of 1740	4720	cmd.exe	99
PID 4720 wrote to memory of 2708	4720	cmd.exe	100
PID 4720 wrote to memory of 2708	4720	cmd.exe	100
PID 4720 wrote to memory of 3572	4720	cmd.exe	101
PID 4720 wrote to memory of 3572	4720	cmd.exe	101
PID 4720 wrote to memory of 3424	4720	cmd.exe	102
PID 4720 wrote to memory of 3424	4720	cmd.exe	102
PID 4720 wrote to memory of 4916	4720	cmd.exe	103
PID 4720 wrote to memory of 4916	4720	cmd.exe	103
PID 4720 wrote to memory of 1548	4720	cmd.exe	104
PID 4720 wrote to memory of 1548	4720	cmd.exe	104
PID 4720 wrote to memory of 392	4720	cmd.exe	105
PID 4720 wrote to memory of 392	4720	cmd.exe	105
PID 4720 wrote to memory of 916	4720	cmd.exe	106
PID 4720 wrote to memory of 916	4720	cmd.exe	106
PID 4720 wrote to memory of 4812	4720	cmd.exe	107
PID 4720 wrote to memory of 4812	4720	cmd.exe	107
PID 4720 wrote to memory of 4976	4720	cmd.exe	108
PID 4720 wrote to memory of 4976	4720	cmd.exe	108
PID 4720 wrote to memory of 3396	4720	cmd.exe	109
PID 4720 wrote to memory of 3396	4720	cmd.exe	109
PID 4720 wrote to memory of 3524	4720	cmd.exe	110
PID 4720 wrote to memory of 3524	4720	cmd.exe	110
PID 4720 wrote to memory of 2536	4720	cmd.exe	111
PID 4720 wrote to memory of 2536	4720	cmd.exe	111
PID 4720 wrote to memory of 2648	4720	cmd.exe	112
PID 4720 wrote to memory of 2648	4720	cmd.exe	112
PID 4720 wrote to memory of 2820	4720	cmd.exe	113
PID 4720 wrote to memory of 2820	4720	cmd.exe	113
PID 4720 wrote to memory of 728	4720	cmd.exe	114
PID 4720 wrote to memory of 728	4720	cmd.exe	114
PID 4720 wrote to memory of 4460	4720	cmd.exe	115
PID 4720 wrote to memory of 4460	4720	cmd.exe	115
PID 4720 wrote to memory of 4832	4720	cmd.exe	116
PID 4720 wrote to memory of 4832	4720	cmd.exe	116
PID 4720 wrote to memory of 1988	4720	cmd.exe	117
PID 4720 wrote to memory of 1988	4720	cmd.exe	117

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
2708	attrib.exe
4832	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:1472
- 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:4720
- - C:\Windows\system32\msg.exe
    msg * "Fatal Error: Something unusual has occured. Maybe try restarting your PC?"
    3⤵
    PID:2964
- - C:\Windows\system32\net.exe
    net session
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1820
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 session
      4⤵
      PID:3000
- - C:\Windows\system32\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1336
- - 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:1592
- - 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:768
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\System32\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2468
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\SysWOW64\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1740
- - 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:2708
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Everyone:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3572
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny SYSTEM:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3424
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Administrators:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4916
- - 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:1548
- - C:\Windows\system32\cmd.exe
    cmd.exe
    3⤵
    PID:392
- - C:\Windows\system32\notepad.exe
    notepad "C:\Users\Admin\Desktop\flare_warning.txt"
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:916
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\CON" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4812
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\PRN" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4976
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\AUX" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3396
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\NUL" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:3524
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM1" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2536
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM2" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2648
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM3" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2820
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\LPT1" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:728
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\LPT2" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4460
- - C:\Windows\system32\attrib.exe
    attrib +s +h "C:\Users\Admin\Desktop\LPT2"
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4832
- - C:\Windows\system32\notepad.exe
    notepad "C:\Users\Admin\Desktop\LPT2\lockfile.txt"
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1988

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
7d8bdc2999133334b777bc1ed27d9b40

SHA1
5fbd1e93721dcaa8656b8cdcc9f3aa62cd2230cf

SHA256
a36a12f1a646dec97c943f3125b061c794566b3c0c684d7188b5995caf540823

SHA512
fce27620bf78315fd44693bee5d17c6cbdb093c1dc26a107dbcb4dfc9c60fa44495e287ca28b882923e78aa66fc53458313a420eb67af8ad1a3c00e1cdafe264

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
1a137b783a1a39509329236672fe24cc

SHA1
f6ecd8fb3f52fe31c357b2c2a23a68aa0a0989a7

SHA256
99c985b3b072b5a1a793187cef71c494c6c4e9b963e77c0c3fcbaca46329c002

SHA512
a9a79f413df02f331177f3833424f48e29edf0f95dbffc0e9f03d5b371d92f60e41f00d12a9667a11e5ca9f80548b4d127fec11862e869b512ab938bdd1f3d72

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads