floxif | f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 05:48

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General

Target

f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.exe
Size

931KB
MD5

28b5174aae21651ebfe075183b09376b
SHA1

af5a7f8c19429c438f55e74a0f98acbba7635446
SHA256

f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5
SHA512

0a8bd3c2f1e619e3f7399a25ac33dbb3e51f61d1e9eddf90c43e3a35a61134e269720c1b360427866b8ad081f1f8d8f8f7c7074b7f13aa78d19349a80fbd81ce
SSDEEP

24576:6HZFeyDGbpHsjUa9bP9fOihv61Y7c1IouZgGnFAZrEH7M:6HdDaKD66ceouqYm

Score

10^/10

floxif backdoor discovery persistence privilege_escalation 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/0x000d000000012254-1.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
behavioral1/files/0x000d000000012254-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2512	f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2512-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000d000000012254-1.dat	upx
behavioral1/memory/2512-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.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	f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.exe

C:\Users\Admin\AppData\Local\Temp\f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.exe
"C:\Users\Admin\AppData\Local\Temp\f00e6bb0f46ab813b878dfd031ea87a217a8737a8743f46a3e505e46cfa458e5.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2512

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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/2512-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2512-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2512-5-0x00000000010E0000-0x00000000011C0000-memory.dmp

Filesize
896KB

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