floxif | 82b7d97368e23848441a92df20a0941a0e1cf88ee888813db760f0fd564fc98d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 12:22

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General

Target

2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe
Size

2.7MB
MD5

672c83dc8d86b7f14370e0e820cb1bd7
SHA1

95a8ac29a9f13e2361e8a4fa8c68b3f0439c2107
SHA256

82b7d97368e23848441a92df20a0941a0e1cf88ee888813db760f0fd564fc98d
SHA512

36b06bd15b870c8dde6e5961e39658acf98d2a057bdb69cf80e0467f0092ec8dff6871bafae0d2869c30df135238e3147d9cc2d968a738f5e1b7c60d62e49648
SSDEEP

49152:2Pf6VdMQTNRbg23shkNw//7vgseqziEsrzoeNFZe55c71y9Bx4M3W/KMZKWKKFTP:2q1Rz3ssw//7vgVqziEsrzppy5y1y9BS

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/0x000c000000023b94-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b94-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1792	2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b94-1.dat	upx
behavioral2/memory/1792-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1792-9-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
116	1792	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 1 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	2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1792	2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-24_672c83dc8d86b7f14370e0e820cb1bd7_floxif_hijackloader_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 SetWindowsHookEx
PID:1792
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 800
  2⤵
  - Program crash
  PID:116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1792 -ip 1792
1⤵
PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1792-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1792-6-0x0000000000251000-0x0000000000252000-memory.dmp

Filesize
4KB

Download
memory/1792-9-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1792-7-0x0000000000250000-0x00000000004F8000-memory.dmp

Filesize
2.7MB

Download