floxif | 239699a7ec60341fdc41ede23a34bc3ffc316a024c3d5ee31be318da0c650705

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
11-08-2024 02:35

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General

Target

88a8f676ff42710f9b78ae256805e111_JaffaCakes118.dll
Size

236KB
MD5

88a8f676ff42710f9b78ae256805e111
SHA1

d336f1db9c08d7be659ac228bf2c95549462dfa3
SHA256

239699a7ec60341fdc41ede23a34bc3ffc316a024c3d5ee31be318da0c650705
SHA512

807af5ccddbb86a93899b34c6809da6ffd2c15877ef954b0b181635e5626d9e6c2ae22629dd46798718e2df411c7af96058ee97f6ba34959a9676d751a837672
SSDEEP

3072:N+KFA9zvWuLLw4dJ5oUgjWC7SzMgGxFlBVZ2lQBV+UdE+rECWp7hKieG:HQtJ5cTBV+UdvrEFp7hKi

Score

10^/10

floxif backdoor discovery 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/0x000a00000001202b-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a00000001202b-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1592	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a00000001202b-1.dat	upx
behavioral1/memory/1592-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1592-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	regsvr32.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	regsvr32.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{85DA4432-40BA-4221-8CA0-730B85E615AE}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3697C30B-CD88-11D0-8A3E-00C04FC9E26E}\NumMethods\ = "4"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C987A3FC-A6E7-4ED2-AED8-A08C3E1CC6DE}\ = "IOpenServiceManagerInternal"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C3960693-4664-472D-A25B-F2FE1DC3B30A}\ = "ILowMicHelper"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7819A000-56F5-432F-BF43-662A11261696}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9706DA66-D17C-48A5-B42D-39963D174DC0}\ = "ITabWindowManager"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{A88E90A6-DD82-437A-B89C-DC2977EB7BA9}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{985F64F0-D410-4E02-BE22-DA07F2B5C5E1}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0ACB838F-A152-4108-AB65-06E73C92EE5F}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{AEDAE97E-D7EE-4796-B960-7F092AE844AB}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{41B68150-904C-4E17-A0BA-A438182E359D}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B722BCC9-4E68-101B-A2BC-00AA00404770}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0E4E1084-4290-4E24-BB44-31F0B9F9F9C4}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{29C3390D-B55C-482E-9E92-1E0064B5CA54}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{79EAC9C5-BAF9-11CE-8C82-00AA004BA90B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{305104AD-98B5-11CF-BB82-00AA00BDCE0B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{1630852E-1263-465B-98E5-FE60FFEC4AC2}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8A2D0A9D-E920-4BDC-A291-D30F650BC4F1}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B40C43F1-F039-44D2-AEB7-87F5AF8ABC3D}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9AEA8A59-E0C9-40F1-87DD-757061D56177}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{ADFC9976-3D2C-467B-98B3-7429ACDF029A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{3E322340-E4A8-4292-9D52-24E5B7B08253}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{87CC5D04-EAFA-4833-9820-8F986530CC00}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B722BCC8-4E68-101B-A2BC-00AA00404770}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B722BCCB-4E68-101B-A2BC-00AA00404770}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{79EAC9C4-BAF9-11CE-8C82-00AA004BA90B}\NumMethods\ = "8"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{305104A9-98B5-11CF-BB82-00AA00BDCE0B}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9909C81E-3BA4-41DA-A7ED-02EF2F319411}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9216E421-2BF5-11D0-82B4-00A0C90C29C5}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{850AF9D6-7309-40B5-BDB8-786C106B2153}\ = "IOpenServiceActivityCategory"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DDEFF51C-B112-44D0-A5EB-676073FFCE9E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DBEF558A-CA54-4DCE-8E22-B70246293BEE}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{893D639F-BBC7-4473-8FFE-A5D198149479}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{199E06AC-5806-4540-98C0-F0B6CD0A0FE3}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{72C94CF1-F24C-4C2E-9A4F-B23439BABD5E}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{13645C88-221A-4905-8ED1-4F5112CFC108}\ = "IOpenServiceActivity"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9D973E3B-F610-4F03-83D3-AED90C3237AC}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{953443F0-E733-448D-A6B4-F747B0147CAA}\ = "IElementBehaviorButton"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0ACB838F-A152-4108-AB65-06E73C92EE5F}\ = "ILCIESerializable"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{E757B2F5-E73E-434E-A1BF-2BD7C3E60FCB}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{FF7F1DDC-E8E2-487C-B944-DA4C185447E2}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9D973E3B-F610-4F03-83D3-AED90C3237AC}\ = "AsyncITravelLogRecoveryData"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{239D58CC-793C-4B64-8320-B51380087C0B}\NumMethods\ = "7"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{2AC06F23-3274-4224-AE7E-F897EDF15FE9}\NumMethods\ = "4"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{9C627E44-7A53-4938-91C6-F60F3ECBEA94}\NumMethods\ = "4"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0D83CFB6-EA1C-4DE1-A9B5-D1AD54F5FC98}\ = "IWebPreviewCallback"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{AEDAE97E-D7EE-4796-B960-7F092AE844AB}\NumMethods\ = "4"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EDB9EF13-045C-4C0A-808E-3294C59703B4}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CCCF3654-F2C1-405B-B167-682E0A3E9A20}\NumMethods\ = "13"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{DCFAB355-C289-4B38-8F72-A360F4F2BF54}\ = "ILinkItemHandler"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{595611CD-13B0-47A1-9116-5B6A4F378E8B}\NumMethods\ = "16"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{B2C867E6-69D6-46F2-A611-DED9A4BD7FEF}\NumMethods\ = "10"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{C374CE57-E034-4327-AA86-6B5D71CE604F}\AsynchronousInterface	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{ADFC9976-3D2C-467B-98B3-7429ACDF029A}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{548793C0-9E74-11CF-9655-00A0C9034923}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{EA77E0BC-3CE7-4CC1-928F-6F50A0CE5487}\ProxyStubClsid32\ = "{A4A1A128-768F-41E0-BF75-E4FDDD701CBA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{5C193B57-4EC0-4387-B98E-BEBF10136422}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{8AD2BB74-1382-4C5E-99BA-6485A56D9D54}\ = "ICommandBarStateSnapshot"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{02000584-947B-4FB3-ABB0-11F8C782D4DA}\NumMethods\ = "11"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{893D639F-BBC7-4473-8FFE-A5D198149479}\ = "IClosedTabManager"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{0D83CFB6-EA1C-4DE1-A9B5-D1AD54F5FC98}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{4FD0599E-FCC0-4FB1-ACED-6B6773199268}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CE528E77-3716-4EB7-956D-F5E37502E12A}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{CCCF3654-F2C1-405B-B167-682E0A3E9A20}\ProxyStubClsid32	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1592	regsvr32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30
PID 1768 wrote to memory of 1592	1768	regsvr32.exe	30

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\88a8f676ff42710f9b78ae256805e111_JaffaCakes118.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\88a8f676ff42710f9b78ae256805e111_JaffaCakes118.dll
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  PID:1592

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/1592-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1592-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download