floxif | 5b5671ca99d86193255b04bfec7ca0e6f96e1a0f41b1bd76a525b3a13288ae08

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/11/2024, 18:12

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General

Target

2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe
Size

201KB
MD5

ac212cecf0a0149efc1b6e823302526a
SHA1

3d9d5d91af503e01c621bf355f3b0e9319830cb1
SHA256

5b5671ca99d86193255b04bfec7ca0e6f96e1a0f41b1bd76a525b3a13288ae08
SHA512

41086ff4e110ca4fc40eed622a79ce238d3d54cc1fe0a4dc528b335d02c4e1fbb5372028c817953d2d19fc7fa8656e7dabccdc578a4c234fe58fd57674e5d743
SSDEEP

6144:em4XA4bB1AtiOlOZF/pRBV+UdvrEFp7hK81g:em4XnbADlODzBjvrEH7NC

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/0x000a00000001227e-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a00000001227e-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2268	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2268-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000a00000001227e-1.dat	upx
behavioral1/memory/2268-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2092	2268	WerFault.exe	29

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	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 2092	2268	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe	31
PID 2268 wrote to memory of 2092	2268	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe	31
PID 2268 wrote to memory of 2092	2268	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe	31
PID 2268 wrote to memory of 2092	2268	2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-18_ac212cecf0a0149efc1b6e823302526a_floxif_karagany_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:2268
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 284
  2⤵
  - Program crash
  PID:2092

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2268-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2268-5-0x0000000000E40000-0x0000000000E63000-memory.dmp

Filesize
140KB

Download
memory/2268-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download