floxif | 276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135

Analysis

max time kernel
92s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2025, 21:46

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General

Target

276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe
Size

464KB
MD5

ec8bfcaf4cee9bfcbecfa723aa2900ca
SHA1

def5a26d38f4b9d04d95a34e96f276746debcf0a
SHA256

276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135
SHA512

c04a7898cf023cb749a980ed056410ba89e89affa409f509d37465b2d44f692ab8316b37d4a4926589dda2d4d65dba0b34c740966532ae8a846ca2ecc4f84259
SSDEEP

12288:5K3wT2b8X1JBxkSYnVWqqPIBONhxs7rleBjvrEH7ft:50wTmE5j/xs7RYrEH7ft

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
behavioral2/files/0x000b000000023b8f-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000b000000023b8f-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1004	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.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:	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1004-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/files/0x000b000000023b8f-1.dat	upx
behavioral2/memory/1004-64-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.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	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1004	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe
1004	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe

C:\Users\Admin\AppData\Local\Temp\276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe
"C:\Users\Admin\AppData\Local\Temp\276d727b7b306d8fb0fc91fad71f191ed7f4359d522a21864231ee65b5601135.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\log.txt

Filesize
5KB

MD5
fdca695140229f8b80aa1852cdc8747d

SHA1
dd985ea5b77caeb77f8560995c0b72efc2b8bcfc

SHA256
6e61718559f3bd82ed3679e5e70483be8d00f6ef96bb47fc530489241dd29e2d

SHA512
11a94c5ed2637c6bdc3bd7b809f168a914bd913b8f4d8d3c508b015ed417ae52e629d4bc125ae4a535b38de176f878ccd72178265e312c53471622acf88736d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\log.txt

Filesize
1KB

MD5
37a8f9c2632336d4e386b7fe58a3d9b8

SHA1
c61a3b48468ebbb67944436246c5a8be76499d8f

SHA256
15dcfa09573e1293401ea0efb0f4fcaa48dfd35356aa13f6d9989793e7a59b7f

SHA512
93b27e65fe86b13f667ce387c40dcda2a40ec5dffa2940bb83f174fe9da7f6b93d3f1b16a1acbd5fc3502d0d2523bd4d83c23c8d5d1e224133fa9426112ad6a0

Download Submit
memory/1004-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1004-62-0x0000000000D70000-0x0000000000DD6000-memory.dmp

Filesize
408KB

Download
memory/1004-64-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download