floxif | 1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 03:24

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General

Target

1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe
Size

2.5MB
MD5

a382f65cd14549bec10a56d43550e120
SHA1

eeb9b38d2ec3224dc5a748e967b1e2911a1f465c
SHA256

1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147
SHA512

dbec5acaf07e42f7462905f58e13a17f769c64c4585963546d06d967933613614e4808591828cb022b4d7dc5732d5263119b6fc4001c2bf74d9fafe90eb0b657
SSDEEP

49152:FB1S7n7zOH0/343A/aT9C0DZonjpy5aoSKrBda7xJ1qP:gOU/34Q/WyuBda7xJUP

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/0x000c00000001202c-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c00000001202c-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2072	arp.exe
1044	arp.exe
2300	arp.exe
1052	arp.exe
2576	arp.exe
2328	arp.exe
1056	arp.exe
1568	arp.exe
1956	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c00000001202c-1.dat	upx
behavioral1/memory/108-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/108-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.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	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	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.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	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 2328	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	30
PID 108 wrote to memory of 2328	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	30
PID 108 wrote to memory of 2328	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	30
PID 108 wrote to memory of 2328	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	30
PID 108 wrote to memory of 1056	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	32
PID 108 wrote to memory of 1056	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	32
PID 108 wrote to memory of 1056	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	32
PID 108 wrote to memory of 1056	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	32
PID 108 wrote to memory of 1568	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	33
PID 108 wrote to memory of 1568	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	33
PID 108 wrote to memory of 1568	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	33
PID 108 wrote to memory of 1568	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	33
PID 108 wrote to memory of 1956	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	34
PID 108 wrote to memory of 1956	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	34
PID 108 wrote to memory of 1956	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	34
PID 108 wrote to memory of 1956	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	34
PID 108 wrote to memory of 2072	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	37
PID 108 wrote to memory of 2072	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	37
PID 108 wrote to memory of 2072	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	37
PID 108 wrote to memory of 2072	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	37
PID 108 wrote to memory of 2576	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	38
PID 108 wrote to memory of 2576	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	38
PID 108 wrote to memory of 2576	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	38
PID 108 wrote to memory of 2576	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	38
PID 108 wrote to memory of 2300	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	40
PID 108 wrote to memory of 2300	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	40
PID 108 wrote to memory of 2300	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	40
PID 108 wrote to memory of 2300	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	40
PID 108 wrote to memory of 1052	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	42
PID 108 wrote to memory of 1052	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	42
PID 108 wrote to memory of 1052	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	42
PID 108 wrote to memory of 1052	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	42
PID 108 wrote to memory of 1044	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	43
PID 108 wrote to memory of 1044	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	43
PID 108 wrote to memory of 1044	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	43
PID 108 wrote to memory of 1044	108	1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe	43

C:\Users\Admin\AppData\Local\Temp\1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe
"C:\Users\Admin\AppData\Local\Temp\1a6bd867c9b57363119f35ddfcd5acde4e1db722bd628be40fcbf0e33c213147N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:108
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2328
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 8f-d1-67-af-9b-29
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1056
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 ff-5e-96-44-3d-54
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1568
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.182 eb-f2-ea-6a-ed-9e
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1956
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 ae-c9-34-8f-2c-c2
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2072
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 bb-5c-31-9a-30-82
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2576
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 94-39-1e-35-9c-ec
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2300
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 14-c1-4e-1f-3e-f0
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1052
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 60-03-5d-ed-a1-06
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1044

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

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/108-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/108-5-0x00000000004BA000-0x00000000004BD000-memory.dmp

Filesize
12KB

Download
memory/108-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download