floxif | 119e46e6e46229ff110661da45cb7e3da451114f67af38b4804a365597646db0

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 05:23

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General

Target

2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe
Size

4.7MB
MD5

271e1a8aa9c5f4bd68003582be28a661
SHA1

2748fc23e4586f51cc92c8ac691eb604e502e289
SHA256

119e46e6e46229ff110661da45cb7e3da451114f67af38b4804a365597646db0
SHA512

557f490bcb9f61e825921b014137baab6a48220d290673130ce797cd87332d06ebe2c72e2204676e9b0f6af033af4e1128f598829271f60fe96af0ec9fcaaf47
SSDEEP

98304:kBe40El9dRPenSX5gSoCM0DHDB1dE46V3u/y:h2NenqM8L/y

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/0x000b000000012029-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000b000000012029-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2840	2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2840-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000b000000012029-1.dat	upx
behavioral1/memory/2840-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2840	2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-26_271e1a8aa9c5f4bd68003582be28a661_bkransomware_floxif.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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/2840-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2840-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2840-5-0x00000000011B0000-0x0000000001671000-memory.dmp

Filesize
4.8MB

Download