floxif | 23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df

Analysis

max time kernel
98s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 06:51

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General

Target

23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.exe
Size

243KB
MD5

2a2e681ca2cb1600cf9062871dc003f8
SHA1

82ed0964b62fc3f2b8664423d94fa4ff71798881
SHA256

23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df
SHA512

45d693c0afac78869955dead84ea16d243a5d5e1f71f05ed83446e264feca04bbc454169f5a00ad307d041f4326618fed04d75efe57e93dd38faaaccff8a33b6
SSDEEP

3072:ewzvOYNp5YPVi/DvbEvK9aobNI2B+DlIH3angqtirxzGlB89Vo6FoCG55lO/X9uX:1piPVuh9H/B+3ChmBV+UdvrEFp7hKLpN

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
behavioral2/files/0x000b000000023bb1-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b000000023bb1-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3672	23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000b000000023bb1-1.dat	upx
behavioral2/memory/3672-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3672-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.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	23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3672	23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.exe

C:\Users\Admin\AppData\Local\Temp\23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.exe
"C:\Users\Admin\AppData\Local\Temp\23db71835455d3c92ec222d06739ae543e7a57fe179a99da4fd1271df60394df.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3672

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3672-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3672-5-0x00000000009F0000-0x0000000000A19000-memory.dmp

Filesize
164KB

Download
memory/3672-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download