floxif | 04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 06:53

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General

Target

04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe
Size

439KB
MD5

11cad9e8909e193f46021838ac3f2181
SHA1

5efa39f410bacecb844de088ced928cfdd02ec0d
SHA256

04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816
SHA512

5924801a7e2d7808c1e52259b92a2b13f264bbc7999ada54334136bc9112b159d7448b2106d9efd86aeb08f3107f00a0b4ff00b5fce1787d7e47410ed925613f
SSDEEP

12288:0/Pzb9UueVmlwrwX6wdYqTg80cUDButsvD5Bby/5D/UmSkZP8WLomGr0q+qcZQCZ:vgCEDUmNPjgr0XqcZQCS0+ArEH7+

Score

10^/10

floxif backdoor discovery trojan upx

Malware Config

Signatures

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/0x000c000000012261-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c000000012261-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1688	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1688-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000c000000012261-1.dat	upx
behavioral1/memory/1688-11-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.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	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1688	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1688	04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe

C:\Users\Admin\AppData\Local\Temp\04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe
"C:\Users\Admin\AppData\Local\Temp\04307b89629ec4a725db6c6790cd3e39f63121a7c726f08eff0ad30e9c08a816.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

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/1688-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1688-11-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1688-10-0x0000000000AD0000-0x0000000000B36000-memory.dmp

Filesize
408KB

Download