floxif | 9cae2fc4b2501aee76c03ce766e242ce0e7337892ca8ca9674112e534306407e

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 12:26

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General

Target

2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe
Size

2.5MB
MD5

309d54e6558dfb9ee7e351dfe2bf1209
SHA1

64cfb4ba751128bbaf043da55371c549b84d6049
SHA256

9cae2fc4b2501aee76c03ce766e242ce0e7337892ca8ca9674112e534306407e
SHA512

cf85e872404eb985d751dc367a31c309573f076489af703336fb02fc5120cf390fd26b6b6440a7fff8b555ef3270734fa9d7a5b38b7dbb9e2a69be4d939849be
SSDEEP

49152:tuIIALofs2hPd2l177BTK2VbDsar1YDjR:tjQfs2hPIl1/a

Score

10^/10

floxif backdoor persistence privilege_escalation trojan upx

Malware Config

Signatures

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/0x0009000000023449-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000023449-1.dat	acprotect

Loads dropped DLL 7 IoCs

pid	Process
4536	2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe
3396	WerFault.exe
1040	WerFault.exe
464	WerFault.exe
2120	WerFault.exe
212	WerFault.exe
1316	WerFault.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023449-1.dat	upx
behavioral2/memory/4536-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4536-19-0x0000000010000000-0x0000000010030000-memory.dmp	upx

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:	2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
2120	4536	WerFault.exe	81
464	4536	WerFault.exe	81
1316	4536	WerFault.exe	81

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4536	2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe
4536	2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4536	2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_309d54e6558dfb9ee7e351dfe2bf1209_floxif_mafia.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4536
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 924
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2120
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 832
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 864
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:1316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4536 -ip 4536
1⤵
- Loads dropped DLL
PID:3396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4536 -ip 4536
1⤵
- Loads dropped DLL
PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4536 -ip 4536
1⤵
- Loads dropped DLL
PID:212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

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/4536-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4536-6-0x0000000000721000-0x0000000000722000-memory.dmp

Filesize
4KB

Download
memory/4536-19-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4536-17-0x0000000000720000-0x000000000098A000-memory.dmp

Filesize
2.4MB

Download