floxif | a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80

Analysis

max time kernel
91s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 23:18

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General

Target

a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.exe
Size

2.7MB
MD5

668824a938c97c893b66041d0ed87f40
SHA1

41fd5422020b182ab337ee6e299904c630b9bea6
SHA256

a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80
SHA512

cc28052e0747f2d2222d851fa0d1f54b1bc330e6640295dd8c6ca4f7ea12bcbd5f325d8ca5d3563045af4105dfc1643cf7c76ff9f2404c9f531013e3360e5a58
SSDEEP

49152:/q0bzGTefLyKAog5uCkW139ye1ZRTa8pOvJksBZz6kDB8P0ynxFuBkwa:i0O6WPsLwyawhRBZelLMkwa

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/0x00090000000122cf-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00090000000122cf-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2188	a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00090000000122cf-1.dat	upx
behavioral1/memory/2188-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2188-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.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	a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.exe

C:\Users\Admin\AppData\Local\Temp\a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.exe
"C:\Users\Admin\AppData\Local\Temp\a71658cf4c69902a6defa94831810af38a4729f2ddc8411f15c493fa5930dd80N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2188

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/2188-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2188-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2188-5-0x00000000009F0000-0x0000000000C93000-memory.dmp

Filesize
2.6MB

Download