floxif | 442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca

General

Target

442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe
Size

452KB
MD5

5e8bb2cdcbf125115a831589e6b06301
SHA1

5a659b67138a10e2d903898a14453aa63071f3ce
SHA256

442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca
SHA512

6130a53627a6c8866b00d0b384fc529ed38c550e9b5e1b955db70b2d23e844ff34eeeecf9c1102ada7f1d0d395126446abaaac2831c7eca7e62895e681145c20
SSDEEP

6144:49dGsVge1ZPmxRTyLxXoQmkjjdElSbrH0ssQvMRlkM4RD/qzMfU0vA:TsVbPcRTydXoQvflUiMRGM4h/qofM

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/0x00090000000120f9-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00090000000120f9-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe

Network Service Discovery 1 TTPs 4 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2932	arp.exe
2796	arp.exe
2260	arp.exe
2316	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2868-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/files/0x00090000000120f9-1.dat	upx
behavioral1/memory/2868-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2260	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	30
PID 2868 wrote to memory of 2260	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	30
PID 2868 wrote to memory of 2260	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	30
PID 2868 wrote to memory of 2260	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	30
PID 2868 wrote to memory of 2316	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	32
PID 2868 wrote to memory of 2316	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	32
PID 2868 wrote to memory of 2316	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	32
PID 2868 wrote to memory of 2316	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	32
PID 2868 wrote to memory of 2932	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	33
PID 2868 wrote to memory of 2932	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	33
PID 2868 wrote to memory of 2932	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	33
PID 2868 wrote to memory of 2932	2868	442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe	33

C:\Users\Admin\AppData\Local\Temp\442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.exe
"C:\Users\Admin\AppData\Local\Temp\442470ba9627e80719d8e29ea4ef2342e4b412c5fd2a3be56940071693d5deca.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:2868
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 4c-7a-ec-5d-40-33
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2316
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 06-74-ca-aa-e2-d7
  2⤵
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  PID:2932
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.184 8a-0a-7e-01-66-8f
  2⤵
  - Network Service Discovery
  PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

1

T1046

System Location Discovery

1

T1614

System Language Discovery

1

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
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/2868-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2868-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2868-5-0x00000000012C0000-0x0000000001325000-memory.dmp

Filesize
404KB

Download

Analysis

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