floxif | 0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960

Analysis

max time kernel
90s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 12:28

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General

Target

0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe
Size

2.2MB
MD5

2bb5d9febb28eacd5d4ffdb6dc4c50c0
SHA1

9e2ca2fb63f5f59adf3abcfb3672d9849fd6fb36
SHA256

0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960
SHA512

53945e3ddbbcdd5a92ada98992fb19c4f4d17c8e0d032139f6c42c1b80dfee8e40ecfefe277ae01848a49548f93c48b54f74bf2772524b192b62b862b6dcf81f
SSDEEP

49152:l4kpdXw1Wa7O6MeCOL9hfV2TIdKiJv81q4:O/166MeCOL9H8iyU4

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

Floxif family
floxif
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
behavioral2/files/0x000b000000023b8f-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b000000023b8f-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
1424	arp.exe
3572	arp.exe
2096	arp.exe
4084	arp.exe
848	arp.exe
5088	arp.exe
4532	arp.exe
4140	arp.exe
4728	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3636-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/files/0x000b000000023b8f-1.dat	upx
behavioral2/memory/3636-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3636 wrote to memory of 1424	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	84
PID 3636 wrote to memory of 1424	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	84
PID 3636 wrote to memory of 1424	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	84
PID 3636 wrote to memory of 3572	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	86
PID 3636 wrote to memory of 3572	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	86
PID 3636 wrote to memory of 3572	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	86
PID 3636 wrote to memory of 5088	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	87
PID 3636 wrote to memory of 5088	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	87
PID 3636 wrote to memory of 5088	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	87
PID 3636 wrote to memory of 4532	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	88
PID 3636 wrote to memory of 4532	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	88
PID 3636 wrote to memory of 4532	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	88
PID 3636 wrote to memory of 4140	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	89
PID 3636 wrote to memory of 4140	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	89
PID 3636 wrote to memory of 4140	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	89
PID 3636 wrote to memory of 2096	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	90
PID 3636 wrote to memory of 2096	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	90
PID 3636 wrote to memory of 2096	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	90
PID 3636 wrote to memory of 4084	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	91
PID 3636 wrote to memory of 4084	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	91
PID 3636 wrote to memory of 4084	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	91
PID 3636 wrote to memory of 4728	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	92
PID 3636 wrote to memory of 4728	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	92
PID 3636 wrote to memory of 4728	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	92
PID 3636 wrote to memory of 848	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	93
PID 3636 wrote to memory of 848	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	93
PID 3636 wrote to memory of 848	3636	0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe	93

C:\Users\Admin\AppData\Local\Temp\0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe
"C:\Users\Admin\AppData\Local\Temp\0ad0b5cc36d56f0c94b984829c13890184ac8422d871dfcbd902d5f9c6f55960N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3636
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1424
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 d8-60-79-0d-9b-b5
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3572
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 5f-a5-b8-2c-df-d6
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:5088
- C:\Windows\SysWOW64\arp.exe
  arp -s 136.243.76.170 ed-0e-fb-7f-ab-24
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4532
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 ee-f2-fc-f0-f9-fd
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4140
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 45-c4-1c-4e-4f-d2
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2096
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 20-a5-5c-23-fd-42
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4084
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 72-63-34-97-a3-19
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:4728
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 e1-ab-58-57-63-64
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/3636-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3636-6-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/3636-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3636-7-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download