floxif | 9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8

General

Target

9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe
Size

369KB
MD5

a2b97eed6b504aae208c60d6f1d6102f
SHA1

105e070068a63fbb0afa9a8640618381be69b6f2
SHA256

9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8
SHA512

cd1d85f1d09fa64bf84da8576ffa9b5408961d6438b5916a9048ebfe0c809a96fcf7088b8e150b3e4ec30341973f5cec8d13f5c6a0d38e42dff259bad5aafead
SSDEEP

6144:IeWE8faaQMbjFtVNtHb7RGb/Mp7mgypysDVpU2drVxdBV+UdvrEFp7hKw4E+:ItaaQMXDFFfp7S5DbU2RdBjvrEH7oE+

Score

10^/10

floxif backdoor discovery persistence 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/0x000c0000000122e4-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c0000000122e4-1.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
2460	dxwsetup.exe

Loads dropped DLL 7 IoCs

pid	Process
2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe
2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe
2460	dxwsetup.exe
2460	dxwsetup.exe
2460	dxwsetup.exe
2460	dxwsetup.exe
2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.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:	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\directx\websetup\SETDD06.tmp	dxwsetup.exe
File created	C:\Windows\SysWOW64\directx\websetup\SETDD06.tmp	dxwsetup.exe
File opened for modification	C:\Windows\SysWOW64\directx\websetup\dsetup.dll	dxwsetup.exe
File opened for modification	C:\Windows\SysWOW64\directx\websetup\SETDD17.tmp	dxwsetup.exe
File created	C:\Windows\SysWOW64\directx\websetup\SETDD17.tmp	dxwsetup.exe
File opened for modification	C:\Windows\SysWOW64\directx\websetup\dsetup32.dll	dxwsetup.exe
File opened for modification	C:\Windows\SysWOW64\DirectX\WebSetup	dxwsetup.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2616-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000c0000000122e4-1.dat	upx
behavioral1/memory/2616-86-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	\??\c:\program files\common files\system\symsrv.dll.000	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe
File created	C:\Program Files\Common Files\System\symsrv.dll	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Logs\DirectX.log	dxwsetup.exe
File opened for modification	C:\Windows\INF\setupapi.app.log	dxwsetup.exe
File opened for modification	C:\Windows\security\logs\scecomp.log	dxwsetup.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	dxwsetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe
Token: SeRestorePrivilege	2460	dxwsetup.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31
PID 2616 wrote to memory of 2460	2616	9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe	31

C:\Users\Admin\AppData\Local\Temp\9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe
"C:\Users\Admin\AppData\Local\Temp\9a004b70ef289585fb214024566b6a60df15e6b7241912508e7d3940834918b8.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dxwsetup.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dxwsetup.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

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

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dsetup.dll

Filesize
91KB

MD5
8dc08c0effffc3d08e8718260843d10c

SHA1
4b4fe49c563c01c8df1c8b0ecfd0008460a44cfe

SHA256
9ad6f392a736ba7e137ac7a49bc454e1457c91372ffec8effd4e779716a1f07d

SHA512
4698f40795e82ee01e2ef6ee2f168714b61cb4c702f2b8f9a66d804d0f37d2f6a6de68fd3669171f193da9eadf397f166d0a3f656682d4c19a990c1875ef08ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dsetup32.dll

Filesize
1.6MB

MD5
f6b14958d2a93750c3d4fad02ca739be

SHA1
02e3592c5d45d4b72d42ce9378513c0d3a661b7b

SHA256
529c3e93c1a7cbb0225ab5f12c5bb0e91eb905ebf3db7fc00cbd96d8e66a6f0e

SHA512
377897d3aae1fceed8c9658800d7ffb05a855ec369b48b0709138122aaffdc9464a85abd214fbf93e9427a94b4ebee6e46a1ff34fc4b5ec54926c83c92ecd31c

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dxwsetup.inf

Filesize
477B

MD5
ad8982eaa02c7ad4d7cdcbc248caa941

SHA1
4ccd8e038d73a5361d754c7598ed238fc040d16b

SHA256
d63c35e9b43eb0f28ffc28f61c9c9a306da9c9de3386770a7eb19faa44dbfc00

SHA512
5c805d78bafff06c36b5df6286709ddf2d36808280f92e62dc4c285edd9176195a764d5cf0bb000da53ca8bbf66ddd61d852e4259e3113f6529e2d7bdbdd6e28

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\dxwsetup.exe

Filesize
476KB

MD5
a2772e5a8df5dc3487e8516321ed29da

SHA1
a0eee1c6115fb776bbba1a97d4ba7baa5511b310

SHA256
8fac859dc73ab7a8c18f093c6a58accf3ee8f1b86a4bcfce4c9e8a1253d2828f

SHA512
17ecff8ab8083318b40b1a38a6ae82b93937cddd8743aa07006e4b67f9d409e80885815fd756914810fb5e9504f0343e337004f09e9b51117e828962c8fae259

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\dxwsetup.exe.tmp

Filesize
552KB

MD5
46c9d57a87edfd45b18855389e5cd7bd

SHA1
0540e2e25fd0eb6110f6fa9a4628cff388c40013

SHA256
c4158ea84af8998cff1be7894994afa4fe7a6c0d6c17cacc6a990988d5ef442c

SHA512
370b107581fe2d03d8c087a6f3def7c37daa0497fb178b4b2d5977f44281d68a8abdeb90ae3db43b340e91eb73020add735c0b4801e90defd47b1f77fad63bcd

Download Submit
memory/2460-80-0x0000000000350000-0x00000000003CC000-memory.dmp

Filesize
496KB

Download
memory/2616-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2616-5-0x0000000001002000-0x0000000001005000-memory.dmp

Filesize
12KB

Download
memory/2616-86-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads