floxif | 18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 05:09

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General

Target

18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.exe
Size

278KB
MD5

722aa86ad3b40193d96a87b22149ee1e
SHA1

5876655895c02006ea741f0132138da7b4a39abe
SHA256

18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541
SHA512

01eccc25743170adc1dd127ada77697cd0b6c888eced998b678aa4557ab5dd8fefabd52e94eba0d340a068bd148695e6ed95635623a09a4d78f6a63dbb88f157
SSDEEP

6144:XAcl/DmsTC3dM7B+mCcBV+UdvrEFp7hK5Gt:XAclbmsy6B+mCcBjvrEH7WGt

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/0x000b0000000120dc-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/0x000b0000000120dc-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2992	18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b0000000120dc-1.dat	upx
behavioral1/memory/2992-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2992-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.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	18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.exe

C:\Users\Admin\AppData\Local\Temp\18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.exe
"C:\Users\Admin\AppData\Local\Temp\18bc804115c5548e5295d37a743d5e34c907fe7e48318badcf50a032453a4541.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2992

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2992-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2992-5-0x0000000000180000-0x00000000001B5000-memory.dmp

Filesize
212KB

Download
memory/2992-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download