25b5c5c60d60808e953ac7a931839fc5807233532e90e47b950c3aad0f3ed03a

Analysis

max time kernel
105s
max time network
142s
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, 15:16

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General

Target

Flarenew.exe
Size

91KB
MD5

cc62e07613c3d5a64deeec263f90203f
SHA1

29b3b3a3dd3b9fc29557b1f143c9a8ff8e0f803b
SHA256

25b5c5c60d60808e953ac7a931839fc5807233532e90e47b950c3aad0f3ed03a
SHA512

bab0d67020aedf4cfa1571a970ad2ae2e959e625f9d527abab3ab346da12875ce8e5e753b5913946d5766f03aafd19e93caa4db3975c4facb21602473ae55fd2
SSDEEP

1536:D7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfPwgOU:f7DhdC6kzWypvaQ0FxyNTBfPV

Score

8^/10

defense_evasion discovery exploit persistence

Malware Config

Signatures

Possible privilege escalation attempt 16 IoCs

exploit

pid	Process
5792	takeown.exe
4728	icacls.exe
4624	icacls.exe
4760	icacls.exe
4792	icacls.exe
4936	icacls.exe
5728	takeown.exe
4712	icacls.exe
5000	icacls.exe
4584	icacls.exe
4600	icacls.exe
4676	icacls.exe
4844	icacls.exe
4672	icacls.exe
4752	icacls.exe
4776	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
4540	attrib.exe
4856	attrib.exe

Modifies file permissions 1 TTPs 16 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4676	icacls.exe
4624	icacls.exe
4752	icacls.exe
4728	icacls.exe
5728	takeown.exe
4600	icacls.exe
4776	icacls.exe
4760	icacls.exe
4844	icacls.exe
5792	takeown.exe
4584	icacls.exe
4672	icacls.exe
5000	icacls.exe
4792	icacls.exe
4936	icacls.exe
4712	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 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
File opened for modification	C:\Windows\System32\flare.bat	attrib.exe
File created	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
2252	taskkill.exe

Opens file in notepad (likely ransom note) 2 IoCs

ransomware

pid	Process
4892	notepad.exe
4884	notepad.exe

Runs net.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	taskkill.exe
Token: SeTakeOwnershipPrivilege	5792	takeown.exe
Token: SeTakeOwnershipPrivilege	5728	takeown.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 5352 wrote to memory of 640	5352	Flarenew.exe	87
PID 5352 wrote to memory of 640	5352	Flarenew.exe	87
PID 640 wrote to memory of 1564	640	cmd.exe	88
PID 640 wrote to memory of 1564	640	cmd.exe	88
PID 640 wrote to memory of 5700	640	cmd.exe	89
PID 640 wrote to memory of 5700	640	cmd.exe	89
PID 5700 wrote to memory of 1640	5700	net.exe	90
PID 5700 wrote to memory of 1640	5700	net.exe	90
PID 640 wrote to memory of 2252	640	cmd.exe	91
PID 640 wrote to memory of 2252	640	cmd.exe	91
PID 640 wrote to memory of 5792	640	cmd.exe	93
PID 640 wrote to memory of 5792	640	cmd.exe	93
PID 640 wrote to memory of 5728	640	cmd.exe	94
PID 640 wrote to memory of 5728	640	cmd.exe	94
PID 640 wrote to memory of 4728	640	cmd.exe	95
PID 640 wrote to memory of 4728	640	cmd.exe	95
PID 640 wrote to memory of 4584	640	cmd.exe	96
PID 640 wrote to memory of 4584	640	cmd.exe	96
PID 640 wrote to memory of 4540	640	cmd.exe	97
PID 640 wrote to memory of 4540	640	cmd.exe	97
PID 640 wrote to memory of 4600	640	cmd.exe	98
PID 640 wrote to memory of 4600	640	cmd.exe	98
PID 640 wrote to memory of 4676	640	cmd.exe	99
PID 640 wrote to memory of 4676	640	cmd.exe	99
PID 640 wrote to memory of 4712	640	cmd.exe	100
PID 640 wrote to memory of 4712	640	cmd.exe	100
PID 640 wrote to memory of 4616	640	cmd.exe	101
PID 640 wrote to memory of 4616	640	cmd.exe	101
PID 640 wrote to memory of 4824	640	cmd.exe	102
PID 640 wrote to memory of 4824	640	cmd.exe	102
PID 640 wrote to memory of 4892	640	cmd.exe	103
PID 640 wrote to memory of 4892	640	cmd.exe	103
PID 640 wrote to memory of 4672	640	cmd.exe	104
PID 640 wrote to memory of 4672	640	cmd.exe	104
PID 640 wrote to memory of 4624	640	cmd.exe	105
PID 640 wrote to memory of 4624	640	cmd.exe	105
PID 640 wrote to memory of 4752	640	cmd.exe	106
PID 640 wrote to memory of 4752	640	cmd.exe	106
PID 640 wrote to memory of 4792	640	cmd.exe	107
PID 640 wrote to memory of 4792	640	cmd.exe	107
PID 640 wrote to memory of 4776	640	cmd.exe	108
PID 640 wrote to memory of 4776	640	cmd.exe	108
PID 640 wrote to memory of 5000	640	cmd.exe	109
PID 640 wrote to memory of 5000	640	cmd.exe	109
PID 640 wrote to memory of 4760	640	cmd.exe	110
PID 640 wrote to memory of 4760	640	cmd.exe	110
PID 640 wrote to memory of 4936	640	cmd.exe	111
PID 640 wrote to memory of 4936	640	cmd.exe	111
PID 640 wrote to memory of 4844	640	cmd.exe	112
PID 640 wrote to memory of 4844	640	cmd.exe	112
PID 640 wrote to memory of 4856	640	cmd.exe	113
PID 640 wrote to memory of 4856	640	cmd.exe	113
PID 640 wrote to memory of 4884	640	cmd.exe	114
PID 640 wrote to memory of 4884	640	cmd.exe	114

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4540	attrib.exe
4856	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:5352
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\5748.tmp\5749.tmp\574A.bat C:\Users\Admin\AppData\Local\Temp\Flarenew.exe"
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:640
- - C:\Windows\system32\msg.exe
    msg * "Fatal Error: Something unusual has occured. Maybe try restarting your PC?"
    3⤵
    PID:1564
- - C:\Windows\system32\net.exe
    net session
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5700
  - - C:\Windows\system32\net1.exe
      C:\Windows\system32\net1 session
      4⤵
      PID:1640
- - C:\Windows\system32\taskkill.exe
    taskkill /f /im taskmgr.exe
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2252
- - 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:5792
- - 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:5728
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\System32\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4728
- - C:\Windows\system32\icacls.exe
    icacls C:\Windows\SysWOW64\taskmgr.exe /grant administrators:F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4584
- - 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:4540
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Everyone:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4600
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny SYSTEM:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4676
- - C:\Windows\system32\icacls.exe
    icacls "C:\Windows\System32\flare.bat" /deny Administrators:(F)
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4712
- - 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:4616
- - C:\Windows\system32\cmd.exe
    cmd.exe
    3⤵
    PID:4824
- - C:\Windows\system32\notepad.exe
    notepad "C:\Users\Admin\Desktop\flare_warning.txt"
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:4892
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\CON" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4672
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\PRN" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4624
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\AUX" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4752
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\NUL" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4792
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM1" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4776
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM2" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:5000
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\COM3" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4760
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\LPT1" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4936
- - C:\Windows\system32\icacls.exe
    icacls "C:\Users\Admin\Desktop\LPT2" /deny Everyone:(F
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:4844
- - C:\Windows\system32\attrib.exe
    attrib +s +h "C:\Users\Admin\Desktop\LPT2"
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4856
- - C:\Windows\system32\notepad.exe
    notepad "C:\Users\Admin\Desktop\LPT2\lockfile.txt"
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:4884

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\5748.tmp\5749.tmp\574A.bat

Filesize
2KB

MD5
9bf685d695cc287fa76bfe8a36a89f3c

SHA1
4bd1ecdbf5fcaf953dde07991556c6fc18c66b4a

SHA256
e93b6dee509f64a3cf0b0b028e0ddffd3274c92f7657ca72e58cbeafb0c8eda8

SHA512
698401d4f2ba37df5a9139efbcd7a819874fd9d4e14b1a204cd3801b95a7c972d41040535211a3ab6932641cdd2aeecbbbae355d92fbe86b6815be9b26f3484f

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

Filesize
16B

MD5
35519859078faf1bb9ff9aa6d97e02f7

SHA1
f62fa3cba186ac4fc65321e5b24f3b3c6713e168

SHA256
c76a191235beca08d9290c53f8832be67b1b9671269674ece289e3162157d2b1

SHA512
674ed9c45e4070cd2de21e7a74fe8327ad3db7234a306988fd579e126f6c37ce5a39fa45cbf2da818c81bf7dfcf160f4f993f9fb3d3a85a1530101564ced9df9

Download Submit
C:\Users\Admin\Desktop\flare_warning.txt

Filesize
85B

MD5
06f0a7e183c60d2d25359f8805ac79c8

SHA1
88dcb58b0342aaa5d26fbcc4f331980280d8788e

SHA256
c4ee6d94b5725af6c1ed91eb62fc34db9be62aca661976a5c24bdbb3db24e1d6

SHA512
ee60f735fcee65e0c76a9240b660bb850f285900d5229dcf102d244e14248b24f5f102523efee659f4de6ac339fa1f554e36a712bd3209a4f3ab1897a63314b3

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

Filesize
91KB

MD5
cc62e07613c3d5a64deeec263f90203f

SHA1
29b3b3a3dd3b9fc29557b1f143c9a8ff8e0f803b

SHA256
25b5c5c60d60808e953ac7a931839fc5807233532e90e47b950c3aad0f3ed03a

SHA512
bab0d67020aedf4cfa1571a970ad2ae2e959e625f9d527abab3ab346da12875ce8e5e753b5913946d5766f03aafd19e93caa4db3975c4facb21602473ae55fd2

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads