floxif | 414b8987e4e6711167138ac82b6de04ef5b3d6f3d4770183a5ffdd7df0688dd9

Analysis

max time kernel
16s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
01-08-2024 21:28

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General

Target

05194f469cdf01bcac9fc8d05306cba0N.exe
Size

138KB
MD5

05194f469cdf01bcac9fc8d05306cba0
SHA1

e8b698c03e529c4054bf37e99815faf01dd50883
SHA256

414b8987e4e6711167138ac82b6de04ef5b3d6f3d4770183a5ffdd7df0688dd9
SHA512

7034dbb3b5fd47009d11fe7081ea837d3650d8040dcb69c465bb28d707991882bcff225a475d5e0d77f5ce35602a27f6ec86a87f05139120d2d74f69ebcd81da
SSDEEP

3072:k3plBITsQvVqRlkM4OAD/KLznBuB2JA2Bjcl3:k3lesQvMRlkM4RD/qzMfU4l3

Score

10^/10

floxif backdoor discovery persistence privilege_escalation trojan upx

Malware Config

Signatures

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/0x000b000000012274-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000b000000012274-1.dat	acprotect

Loads dropped DLL 10 IoCs

pid	Process
1444	05194f469cdf01bcac9fc8d05306cba0N.exe
2396	arp.exe
2324	arp.exe
2100	arp.exe
2700	arp.exe
580	arp.exe
2060	arp.exe
2884	arp.exe
2924	arp.exe
2872	arp.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1444-4-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/files/0x000b000000012274-1.dat	upx
behavioral1/memory/2396-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2396-10-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2324-13-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2700-17-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2100-16-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2324-21-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2100-20-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2924-29-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2884-28-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2872-31-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2060-26-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/580-24-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2884-39-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/580-37-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2700-35-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2060-33-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2924-42-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2872-41-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1444-45-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2924	arp.exe
2324	arp.exe
2884	arp.exe
2060	arp.exe
2396	arp.exe
2872	arp.exe
580	arp.exe
2100	arp.exe
2700	arp.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	05194f469cdf01bcac9fc8d05306cba0N.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 10 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	arp.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	05194f469cdf01bcac9fc8d05306cba0N.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
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 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	1444	05194f469cdf01bcac9fc8d05306cba0N.exe
Token: SeDebugPrivilege	2396	arp.exe
Token: SeDebugPrivilege	2100	arp.exe
Token: SeDebugPrivilege	2324	arp.exe
Token: SeDebugPrivilege	2700	arp.exe
Token: SeDebugPrivilege	580	arp.exe
Token: SeDebugPrivilege	2924	arp.exe
Token: SeDebugPrivilege	2060	arp.exe
Token: SeDebugPrivilege	2884	arp.exe
Token: SeDebugPrivilege	2872	arp.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1444 wrote to memory of 2396	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	30
PID 1444 wrote to memory of 2396	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	30
PID 1444 wrote to memory of 2396	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	30
PID 1444 wrote to memory of 2396	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	30
PID 1444 wrote to memory of 2924	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	32
PID 1444 wrote to memory of 2924	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	32
PID 1444 wrote to memory of 2924	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	32
PID 1444 wrote to memory of 2924	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	32
PID 1444 wrote to memory of 2324	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	33
PID 1444 wrote to memory of 2324	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	33
PID 1444 wrote to memory of 2324	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	33
PID 1444 wrote to memory of 2324	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	33
PID 1444 wrote to memory of 2100	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	34
PID 1444 wrote to memory of 2100	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	34
PID 1444 wrote to memory of 2100	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	34
PID 1444 wrote to memory of 2100	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	34
PID 1444 wrote to memory of 2700	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	36
PID 1444 wrote to memory of 2700	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	36
PID 1444 wrote to memory of 2700	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	36
PID 1444 wrote to memory of 2700	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	36
PID 1444 wrote to memory of 580	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	37
PID 1444 wrote to memory of 580	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	37
PID 1444 wrote to memory of 580	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	37
PID 1444 wrote to memory of 580	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	37
PID 1444 wrote to memory of 2060	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	39
PID 1444 wrote to memory of 2060	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	39
PID 1444 wrote to memory of 2060	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	39
PID 1444 wrote to memory of 2060	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	39
PID 1444 wrote to memory of 2872	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	42
PID 1444 wrote to memory of 2872	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	42
PID 1444 wrote to memory of 2872	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	42
PID 1444 wrote to memory of 2872	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	42
PID 1444 wrote to memory of 2884	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	43
PID 1444 wrote to memory of 2884	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	43
PID 1444 wrote to memory of 2884	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	43
PID 1444 wrote to memory of 2884	1444	05194f469cdf01bcac9fc8d05306cba0N.exe	43

C:\Users\Admin\AppData\Local\Temp\05194f469cdf01bcac9fc8d05306cba0N.exe
"C:\Users\Admin\AppData\Local\Temp\05194f469cdf01bcac9fc8d05306cba0N.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:1444
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2396
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 a6-21-81-4b-bb-46
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2924
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 c9-f9-6a-22-1d-5c
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2324
- C:\Windows\SysWOW64\arp.exe
  arp -s 136.243.76.170 56-10-00-7f-83-d1
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2100
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 fb-61-c2-46-65-92
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2700
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 8e-49-94-2b-f9-bd
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:580
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 b6-d0-cf-2b-8c-03
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2060
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 d8-2e-97-97-54-34
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2872
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 e4-07-48-77-d2-fd
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Information Discovery

T1082

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
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/580-24-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/580-37-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1444-46-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1444-3-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/1444-4-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1444-12-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1444-45-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2060-26-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2060-33-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2100-16-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2100-20-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2324-21-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2324-13-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2396-10-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2396-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2700-35-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2700-17-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2872-31-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2872-41-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2884-39-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2884-28-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2924-42-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2924-29-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download