floxif | a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 23:41

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General

Target

a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.exe
Size

278KB
MD5

3673b7c2e5446950e720844ec4bf6ec3
SHA1

76f3901d28e673833600b4d0697f193c9dc20e78
SHA256

a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2
SHA512

fb641242fc7e711e692b0f98a02efb0bbfe442d8040d6394d0d4bd8c27d1912c3b3689109fc622877640967d7481ca70f5a57a5331671c57f86b5a886f870804
SSDEEP

6144:VAhl/EGrTC3dM7B+mCpBV+UdvrEFp7hKgGX:VAhlMGry6B+mCpBjvrEH7zGX

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/0x0007000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2572	a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/2572-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2572-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.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	a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2572	a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.exe

C:\Users\Admin\AppData\Local\Temp\a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.exe
"C:\Users\Admin\AppData\Local\Temp\a5c30b4e35a4b963a9f4c1dfb759bde3df9e0474c6537f98495dc5959db3c3e2.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2572

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/2572-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2572-5-0x0000000000070000-0x00000000000A5000-memory.dmp

Filesize
212KB

Download
memory/2572-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download