floxif | 407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbe

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 23:16

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General

Target

407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe
Size

2.2MB
MD5

4cf9dedbbb64e0f334eabca66a4fc4c0
SHA1

94c0febb762240a1f6fed1068a4ee849aa076a71
SHA256

407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbe
SHA512

a865f146654e920fb5151167a301df162bcdad5b45f2b3bb84e1e9b75dc6f790940b4d82dfc107aafe92f2ed5cdc74ab3a06899c323dd2344cf73500393ba34e
SSDEEP

49152:FkpXXw1Wa7O6weCOL9hfV2TIdKiJv81qK:FZ166weCOL9H8iyUK

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
behavioral1/files/0x000b000000012253-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000b000000012253-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2980	arp.exe
2876	arp.exe
2868	arp.exe
2444	arp.exe
2816	arp.exe
2720	arp.exe
2732	arp.exe
2080	arp.exe
1032	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b000000012253-1.dat	upx
behavioral1/memory/2376-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2376-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.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	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2080	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	30
PID 2376 wrote to memory of 2080	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	30
PID 2376 wrote to memory of 2080	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	30
PID 2376 wrote to memory of 2080	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	30
PID 2376 wrote to memory of 2444	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	32
PID 2376 wrote to memory of 2444	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	32
PID 2376 wrote to memory of 2444	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	32
PID 2376 wrote to memory of 2444	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	32
PID 2376 wrote to memory of 2816	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	33
PID 2376 wrote to memory of 2816	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	33
PID 2376 wrote to memory of 2816	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	33
PID 2376 wrote to memory of 2816	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	33
PID 2376 wrote to memory of 2720	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	35
PID 2376 wrote to memory of 2720	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	35
PID 2376 wrote to memory of 2720	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	35
PID 2376 wrote to memory of 2720	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	35
PID 2376 wrote to memory of 1032	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	37
PID 2376 wrote to memory of 1032	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	37
PID 2376 wrote to memory of 1032	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	37
PID 2376 wrote to memory of 1032	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	37
PID 2376 wrote to memory of 2732	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	39
PID 2376 wrote to memory of 2732	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	39
PID 2376 wrote to memory of 2732	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	39
PID 2376 wrote to memory of 2732	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	39
PID 2376 wrote to memory of 2868	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	41
PID 2376 wrote to memory of 2868	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	41
PID 2376 wrote to memory of 2868	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	41
PID 2376 wrote to memory of 2868	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	41
PID 2376 wrote to memory of 2876	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	43
PID 2376 wrote to memory of 2876	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	43
PID 2376 wrote to memory of 2876	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	43
PID 2376 wrote to memory of 2876	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	43
PID 2376 wrote to memory of 2980	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	45
PID 2376 wrote to memory of 2980	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	45
PID 2376 wrote to memory of 2980	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	45
PID 2376 wrote to memory of 2980	2376	407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe	45

C:\Users\Admin\AppData\Local\Temp\407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.exe
"C:\Users\Admin\AppData\Local\Temp\407b369414d977993c96ccf22f61d9c7773745383e35405a708d9b30a63fdfbeN.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:2376
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2080
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 55-1e-50-21-f5-84
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2444
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 d1-e4-73-f0-ab-b8
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.180 d1-58-6a-1f-98-bc
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2720
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 04-23-e7-b1-16-8c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1032
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 e9-9c-c1-0f-91-10
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2732
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 74-b5-1d-21-4d-54
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2868
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 3f-c6-5b-d5-67-0f
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2876
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 09-dc-cf-10-5a-9c
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2980

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

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

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/2376-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2376-5-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2376-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download