floxif | db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 23:29

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General

Target

db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe
Size

1.2MB
MD5

e5c1ab2dc09caab3114058b9279baab0
SHA1

af927f58671efeb2398a97306038a3ba9722dafd
SHA256

db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1
SHA512

61812fc829dd57c9c232423864386da1da456c185d44fd78d7c6436b5449c332e1a19a66d1fcc49e298f247097ca0b80266b84f37471edbd666def424a90d875
SSDEEP

24576:3r7mNJG//19XnuJXQaXlubv9bNVyvg3EfzGr9MRGJ/qofD:32OnL+Qiu9bNVyIuz41qK

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/0x0007000000012119-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012119-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.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:	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
3016	arp.exe
3032	arp.exe
2112	arp.exe
2920	arp.exe
2340	arp.exe
2256	arp.exe
2108	arp.exe
2928	arp.exe
3000	arp.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1792-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/files/0x0007000000012119-1.dat	upx
behavioral1/memory/1792-9-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1792-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1792-16-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1792-19-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe

System Location Discovery: System Language Discovery 1 TTPs 11 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	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	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.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 behavior: EnumeratesProcesses 3 IoCs

pid	Process
1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe
1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe
1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
476	Process not Found
476	Process not Found

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 2928	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	30
PID 1792 wrote to memory of 2928	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	30
PID 1792 wrote to memory of 2928	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	30
PID 1792 wrote to memory of 2928	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	30
PID 1792 wrote to memory of 3000	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	32
PID 1792 wrote to memory of 3000	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	32
PID 1792 wrote to memory of 3000	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	32
PID 1792 wrote to memory of 3000	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	32
PID 1792 wrote to memory of 3032	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	33
PID 1792 wrote to memory of 3032	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	33
PID 1792 wrote to memory of 3032	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	33
PID 1792 wrote to memory of 3032	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	33
PID 1792 wrote to memory of 2340	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	35
PID 1792 wrote to memory of 2340	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	35
PID 1792 wrote to memory of 2340	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	35
PID 1792 wrote to memory of 2340	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	35
PID 1792 wrote to memory of 2920	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	37
PID 1792 wrote to memory of 2920	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	37
PID 1792 wrote to memory of 2920	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	37
PID 1792 wrote to memory of 2920	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	37
PID 1792 wrote to memory of 2112	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	39
PID 1792 wrote to memory of 2112	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	39
PID 1792 wrote to memory of 2112	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	39
PID 1792 wrote to memory of 2112	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	39
PID 1792 wrote to memory of 3016	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	41
PID 1792 wrote to memory of 3016	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	41
PID 1792 wrote to memory of 3016	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	41
PID 1792 wrote to memory of 3016	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	41
PID 1792 wrote to memory of 2256	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	43
PID 1792 wrote to memory of 2256	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	43
PID 1792 wrote to memory of 2256	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	43
PID 1792 wrote to memory of 2256	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	43
PID 1792 wrote to memory of 2108	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	45
PID 1792 wrote to memory of 2108	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	45
PID 1792 wrote to memory of 2108	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	45
PID 1792 wrote to memory of 2108	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	45
PID 1792 wrote to memory of 2592	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	49
PID 1792 wrote to memory of 2592	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	49
PID 1792 wrote to memory of 2592	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	49
PID 1792 wrote to memory of 2592	1792	db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe	49

C:\Users\Admin\AppData\Local\Temp\db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.exe
"C:\Users\Admin\AppData\Local\Temp\db9fdaff9c780227ed125c2866765da6bd1ef72cdf7a8cf903ac558dcc3831b1N.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:1792
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2928
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 c1-44-99-da-19-2a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 a8-23-2e-5b-85-42
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3032
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.183 01-08-5d-e6-2d-db
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2340
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 41-e1-b4-e5-12-94
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 7c-81-a3-6a-aa-55
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2112
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 09-94-03-79-a0-3b
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:3016
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 29-3f-09-ed-b2-1e
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2256
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 b4-65-08-02-59-37
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2108
- C:\Windows\SysWOW64\arp.exe
  arp -d
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

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

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

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/1792-18-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-19-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1792-7-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1792-20-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-15-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-9-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1792-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1792-16-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1792-22-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-24-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-26-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-28-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-30-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-32-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1792-34-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download