floxif | 33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 05:46

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General

Target

33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.exe
Size

562KB
MD5

4954d97c03c5388fee70d218cbd0cf14
SHA1

e86fc1b2da8da5c1e1af8ef2fbece5ccdcaa0a2b
SHA256

33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7
SHA512

e267e44d0768074d673259a633b9350283e12822cf32418c3e2a51b96f44c0f6fd7c8d2220da3c22ddbba5e32b713d1b098a3793305c0197e460f366fa57bffb
SSDEEP

12288:SnR+T6jdSeoOjH7wEGA4iuSlvdGHBjvrEH7HB:SnR+T6BSe/77OXivd4rEH7HB

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
behavioral2/files/0x000b000000023ba4-1.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/0x000b000000023ba4-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
868	33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023ba4-1.dat	upx
behavioral2/memory/868-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/868-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.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	33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	868	33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.exe

C:\Users\Admin\AppData\Local\Temp\33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.exe
"C:\Users\Admin\AppData\Local\Temp\33d31c3a3cc991b7a7e5e640c397c5731fbb3a81178bf24fc6d79d3b2f2d19d7.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:868

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

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/868-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/868-6-0x0000000000D10000-0x0000000000D8A000-memory.dmp

Filesize
488KB

Download
memory/868-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download