floxif | 6ae23bcc02f4bb2b2d66cda9a0760296d8f11e2b3a72a5144c54a72476bdcb5d

General

Target

2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe
Size

272KB
MD5

78f19ebb268c79a6b5dd2ab2791e082e
SHA1

adf0c302213ac2e5363c304dd75735a4ed1334cf
SHA256

6ae23bcc02f4bb2b2d66cda9a0760296d8f11e2b3a72a5144c54a72476bdcb5d
SHA512

30f86f33698d5b80fbfeffea7bacd69cc723f0b255a1800bdaac4ec11271dbab38cad93e53e32939d0cb942693c39f277c5993c7249b6d18242b26016912ebeb
SSDEEP

6144:2UHNlyIxgMgDRkTEUET+l2AbpLk0cusQvMRlkM4RD/qzMfU/:PtlakT1KG2qk0nMRGM4h/qofi

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/0x000a00000001202a-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a00000001202a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe

Network Service Discovery 1 TTPs 5 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2380	arp.exe
1992	arp.exe
1840	arp.exe
2920	arp.exe
2372	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2096-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/files/0x000a00000001202a-1.dat	upx
behavioral1/memory/2096-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.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	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2380	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	30
PID 2096 wrote to memory of 2380	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	30
PID 2096 wrote to memory of 2380	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	30
PID 2096 wrote to memory of 2380	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	30
PID 2096 wrote to memory of 1992	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	32
PID 2096 wrote to memory of 1992	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	32
PID 2096 wrote to memory of 1992	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	32
PID 2096 wrote to memory of 1992	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	32
PID 2096 wrote to memory of 1840	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	33
PID 2096 wrote to memory of 1840	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	33
PID 2096 wrote to memory of 1840	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	33
PID 2096 wrote to memory of 1840	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	33
PID 2096 wrote to memory of 2920	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	35
PID 2096 wrote to memory of 2920	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	35
PID 2096 wrote to memory of 2920	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	35
PID 2096 wrote to memory of 2920	2096	2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe	35

C:\Users\Admin\AppData\Local\Temp\2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-10_78f19ebb268c79a6b5dd2ab2791e082e_floxif_mafia.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:2096
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 36-dd-2b-11-db-04
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1992
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 71-f5-f4-e8-4f-8d
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.183 1b-29-9f-5f-3e-b2
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2920
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 6b-33-37-ae-bc-44
  2⤵
  - Network Service Discovery
  PID:2372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

System Location Discovery

1

T1614

System Language Discovery

1

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/2096-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2096-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2096-5-0x0000000001350000-0x0000000001382000-memory.dmp

Filesize
200KB

Download

Analysis

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