floxif | b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118e

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 04:27

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General

Target

b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.exe
Size

811KB
MD5

09247dd9005ce5c2ffaee2020b9c58b0
SHA1

446b8304b9e79d273be21c1a9e15d58e4b03f440
SHA256

b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118e
SHA512

f88adc27ae51a0576906d47f32c696216819ee4381c4bbfee75d966c2fab65762ee2efb76f0eea134ec32b189ef1dced361a6398258d53547a777ee434c73807
SSDEEP

12288:CmxsEGerEsTmjjb6+A4AhSJgmy/NTJkr7uDBvhGpyZmaFgBjvrEH795:CmvGCdTmXY7SJgV/Zqrih4yZmmCrEH7L

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/0x000c000000012244-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c000000012244-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2712	b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2712-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000c000000012244-1.dat	upx
behavioral1/memory/2712-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.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	b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.exe

C:\Users\Admin\AppData\Local\Temp\b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.exe
"C:\Users\Admin\AppData\Local\Temp\b3221383e558ba90e59d773cf11ed392ebc3b40bea97971108e940d90b95118eN.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2712

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/2712-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2712-5-0x00000000013B0000-0x0000000001468000-memory.dmp

Filesize
736KB

Download
memory/2712-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download