floxif | bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
05-01-2025 08:34

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General

Target

bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe
Size

943KB
MD5

c40da34c976f62ecb1d011d8bc5c3c69
SHA1

0972a3b5022c6eff42ddd4ae157949429c534b90
SHA256

bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb
SHA512

9bc0c35bcf1007d84d583d20ee0dd72ec3b57c44ae0d3b2239996113258c10c77ceb6f8a2f30e9e26850afb08b82be59fe7f21f74b9437b72284db347121bfa9
SSDEEP

24576:yOo5yT/tMbHWc8eC9TqOUk12+lm/HIpUqUW1kVlFo1U4OmrEH7J:yOowTKbHqlcBInUakDGdO7

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/0x0009000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0009000000012117-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1672	bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1672-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x0009000000012117-1.dat	upx
behavioral1/memory/1672-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe

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	bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1672	bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe

C:\Users\Admin\AppData\Local\Temp\bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe
"C:\Users\Admin\AppData\Local\Temp\bfe73929fb51c3ef81b9e2fa0f22efcfdb847a9935443ac46dc35f2545345dfb.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1672

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/1672-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1672-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1672-5-0x0000000001020000-0x0000000001100000-memory.dmp

Filesize
896KB

Download