floxif | e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9

Analysis

max time kernel
13s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-01-2025 06:48

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General

Target

e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe
Size

281KB
MD5

59b56a0e7527fbdcd02c732ddc9d71a9
SHA1

de559924f2c07b37a964effa51dc93b472ab626b
SHA256

e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9
SHA512

e5db27868312374176e25cce298e3a8aac741efd02cb636cd2222d8c7fc9011dcc00f3034cd335e57c93b57db07562d9f43f16f02cebe4f1a2e31246eb800bb5
SSDEEP

6144:Ctzl/DRfkTC3dM7B+mCasQvMRlkM4RD/qzMfUG3:CllbRfky6B+mCAMRGM4h/qof1

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/0x0009000000012238-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0009000000012238-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2604	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe

Network Service Discovery 1 TTPs 1 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2056	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000012238-1.dat	upx
behavioral1/memory/2604-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2604-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2056	2604	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe	29
PID 2604 wrote to memory of 2056	2604	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe	29
PID 2604 wrote to memory of 2056	2604	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe	29
PID 2604 wrote to memory of 2056	2604	e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe	29

C:\Users\Admin\AppData\Local\Temp\e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe
"C:\Users\Admin\AppData\Local\Temp\e4205b968a65d5d53653e81e0dd9ae40c84630651aed24031bae4f8a2b8e8bc9.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

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
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/2604-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2604-5-0x0000000000EB0000-0x0000000000EE5000-memory.dmp

Filesize
212KB

Download
memory/2604-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download