floxif | 76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0

Reason

Machine shutdown

General

Target

76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Size

238KB
MD5

e6ef46c4c29781b0a24d14b1b4163910
SHA1

aaa4557dcabcf96bb1ad39f9e1c5fe522ee3786a
SHA256

76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0
SHA512

63a72c76f4e1b239abd177e0804ca66957a73e4f1d8107a5dfab9f497939f4267d2c8be499b1cddd790fa15be22e280fa06959a81ea148fb4a98a6e2a83f03d8
SSDEEP

6144:6UgAapGj7G81VIYVnApBBV+UdvrEFp7hKSpq:6Ug1aQBBjvrEH75q

Score

10^/10

floxif adware backdoor discovery stealer 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
behavioral2/files/0x000a000000023ca3-2.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023ca3-2.dat	acprotect

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Loads dropped DLL 1 IoCs

pid	Process
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3748-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000a000000023ca3-2.dat	upx
behavioral2/memory/3748-15-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3748-16-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3748-20-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.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 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	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "46"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Name-Space Handler\http\	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Name-Space Handler\ftp\	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PROTOCOLS\Name-Space Handler\https\	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
Token: SeShutdownPrivilege	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4284	LogonUI.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3748 wrote to memory of 4220	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe	82
PID 3748 wrote to memory of 4220	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe	82
PID 3748 wrote to memory of 4220	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe	82
PID 4220 wrote to memory of 3088	4220	net.exe	84
PID 4220 wrote to memory of 3088	4220	net.exe	84
PID 4220 wrote to memory of 3088	4220	net.exe	84
PID 3748 wrote to memory of 3580	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe	85
PID 3748 wrote to memory of 3580	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe	85
PID 3748 wrote to memory of 3580	3748	76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe	85

C:\Users\Admin\AppData\Local\Temp\76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe
"C:\Users\Admin\AppData\Local\Temp\76e087e12234718cfb6f5387511175ceb4b8295c9d8115feb9fca1dfe63f00d0N.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Enumerates connected drives
- Installs/modifies Browser Helper Object
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3748
- C:\Windows\SysWOW64\net.exe
  "C:\Windows\System32\net.exe" stop IDMWFP
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop IDMWFP
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3088
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /u /s IDMShellExt64.dll
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3580

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa39ad855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/3748-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3748-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3748-6-0x0000000000406000-0x000000000040A000-memory.dmp

Filesize
16KB

Download
memory/3748-12-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3748-15-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3748-16-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3748-17-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3748-20-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3748-21-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads