floxif | 5efcc1ed09ef2dc1f01a946d969ff37d529193fa525bef92afede9868a16e6d2

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
23/07/2026, 01:04

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General

Target
2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
Size 2.3MB
Sample260723-bfazfaydkd
SHA256 5efcc1ed09ef2dc1f01a946d969ff37d529193fa525bef92afede9868a16e6d2
MD5 d25e47754d4e739dfea458b9d203ebea
SHA1 09c818e86cc1a79ff3f027371a31badfd183a4b7
SHA512 94a9c5663113929ab2a027326fa60f8b2c2006f0890a95164e4b0dcd24d59675a1bd5a59553ae850a0b354a6c9a739cbb6682bca697046dc69b7110f803d7616
SSDEEP 49152:/80cZHgJevFz9q4fcuBSccghdccyt4ZVqt:002A4jByghPq2C
TLSH
T1D5B5BF017391837EF9D366B29CD47D3687B43E450B11488B72AC7F1ABB721B2AD78219
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor discovery execution floxif trojan upx

Malware Config

Signatures

Family: Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral1/files/0x001700000002433e-1.dat	floxif

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral1/files/0x001700000002433e-1.dat	UPX
behavioral1/memory/3768-3-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/3768-13-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/3768-20-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/3768-22-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/3768-24-0x0000000010000000-0x0000000010030000-memory.dmp	UPX
behavioral1/memory/3768-28-0x0000000010000000-0x0000000010030000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x001700000002433e-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 7 IoCs

execution

Visual Basic

T1059.005

pid	Process
1472	cscript.exe
2772	cscript.exe
4384	cscript.exe
1236	cscript.exe
3588	cscript.exe
4452	cscript.exe
2044	cscript.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x001700000002433e-1.dat	upx
behavioral1/memory/3768-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/3768-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/3768-20-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/3768-22-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/3768-24-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/3768-28-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe

Executes a command shell one-liner 1 TTPs 8 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2192	cmd.exe
4720	cmd.exe
1972	cmd.exe
4600	cmd.exe
1996	cmd.exe
3148	cmd.exe
4796	cmd.exe
1584	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	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 4796	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	84
PID 3768 wrote to memory of 1584	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	86
PID 1584 wrote to memory of 1472	1584	cmd.exe	88
PID 3768 wrote to memory of 2192	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	91
PID 2192 wrote to memory of 2772	2192	cmd.exe	93
PID 3768 wrote to memory of 4720	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	95
PID 4720 wrote to memory of 4384	4720	cmd.exe	97
PID 3768 wrote to memory of 1972	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	104
PID 1972 wrote to memory of 1236	1972	cmd.exe	106
PID 3768 wrote to memory of 4600	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	107
PID 4600 wrote to memory of 3588	4600	cmd.exe	109
PID 3768 wrote to memory of 1996	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	111
PID 1996 wrote to memory of 4452	1996	cmd.exe	113
PID 3768 wrote to memory of 3148	3768	2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe	114
PID 3148 wrote to memory of 2044	3148	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-23_d25e47754d4e739dfea458b9d203ebea_amadey_elex_floxif_wannacry.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3768
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c ver.exe
  2⤵
  - Executes a command shell one-liner
  PID:4796
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:1472
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:2772
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:4384
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:1236
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4600
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:3588
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:4452
- C:\Windows\system32\cmd.exe
  "C:\Windows\Sysnative\cmd.exe" /c cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:3148
- - C:\Windows\System32\cscript.exe
    cscript.exe C:\Windows\System32\slmgr.vbs //NoLogo /dlv All
    3⤵
    - Executes a VBScript file via the Windows Script Host.
    PID:2044

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Visual Basic

T1059.005

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

symsrv.dll

Path C:\Program Files\Common Files\System\symsrv.dll
Size 67KB
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
TLSH
T17863F1372AB5807DDD210D37949F835AB771E5A76C20643FC25907D988B8DD0E3239AE
MD5 SHA1 SHA512 SSDEEP TLSH

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symsrv.dll.000

Path C:\Program Files\Common Files\System\symsrv.dll.000
Size 114B
SHA256 aefc503b1ed462d7b6280228a7b5b710792273b78934426f88325341ac5b5a92
MD5 e609411db8aa6775d0344c75c23ae79b
SHA1 1d2ff6194bf159ce36cd0461cd3da29486d1e97d
SHA512 6884ff5c07bc687132c965a59cb8c5a898a25da74c6c846c1d6089ddca8007cb7e4d2f8520bdce9fbcf6e2f9c9e5c28d8c8d6d049d3522470bdc7d38bbfa0ad0
TLSH
T1FFB09262AA2791EAE1AA224505A0248C1ED0B62AB48638002EBA5A4E93256A85916147
MD5 SHA1 SHA512 TLSH

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memory/3768-3-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/3768-10-0x0000000076AB5000-0x0000000076AB6000-memory.dmp

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memory/3768-12-0x0000000076AA0000-0x0000000076B03000-memory.dmp

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memory/3768-13-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/3768-16-0x0000000076AA0000-0x0000000076B03000-memory.dmp

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memory/3768-18-0x0000000076AA0000-0x0000000076B03000-memory.dmp

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memory/3768-20-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/3768-22-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/3768-24-0x0000000010000000-0x0000000010030000-memory.dmp

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memory/3768-28-0x0000000010000000-0x0000000010030000-memory.dmp

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