floxif | d89a95e276692f1b4d4f4ce78f027e9e9ff7992283f1f5a27bfe8078595f13b4

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10/01/2025, 18:17

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General

Target

2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe
Size

3.1MB
MD5

eb12a4e10b158809d6655977ade7d9f5
SHA1

6ba15ac48e6a6abd26d54d877d7722078d8eaf18
SHA256

d89a95e276692f1b4d4f4ce78f027e9e9ff7992283f1f5a27bfe8078595f13b4
SHA512

1c66c13a476485d4df92e913e122ed1df4ac2c5ddfd7a954ec87c646822eb5b636d65ad4b1335716e285bad10ca6b29eb3778b8d704e9671267127df5e8c63e4
SSDEEP

49152:Mk7xcpob5JLtnKhON2bun5Bzga/mYm/OtfEsxheZYZsgi:RxcG5JLtnVNfnb//mMZEsxheZui

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/0x00080000000120fb-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00080000000120fb-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1720	2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1720-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1720-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x00080000000120fb-1.dat	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.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	2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1720	2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1720	2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-10_eb12a4e10b158809d6655977ade7d9f5_bkransomware_floxif.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1720

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

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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/1720-5-0x0000000001380000-0x0000000001698000-memory.dmp

Filesize
3.1MB

Download
memory/1720-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1720-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download