floxif | 75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 00:18

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General

Target

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe
Size

440KB
MD5

638fb58a659a13269f76e3550578e5c7
SHA1

65f5e441189f343fe238a18af3b6d8da25c08434
SHA256

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215
SHA512

9f3e1abcd1baf4a25f0aaa81f491515a615a84cd998e21042f79d2c71f72c4312becd282f3311146ae94aab89a0b91bc39b311833edd12bd730b8741aa8cbb40
SSDEEP

12288:2/J+CtaxnjZpAbxdxDcWcnR4bfXfwiSegG8xHgbYpj38NO0qwxeWfF02/S0lqJqL:+elq60DvfeUYqcZQCGm4YprEH7p

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

Processes:

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	acprotect

Loads dropped DLL 1 IoCs

Processes:

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

pid	Process
2032	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.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

Processes:

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

description	ioc	Process
File opened (read-only)	\??\e:	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2032-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/2032-15-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

Processes:

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.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

Processes:

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

pid	Process
2032	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

description	pid	Process
Token: SeDebugPrivilege	2032	75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe

C:\Users\Admin\AppData\Local\Temp\75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.exe
"C:\Users\Admin\AppData\Local\Temp\75d95fd307c7cc7c03d000cd73bbb72b40bc10264d920c75156548cbf11ae215.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:2032

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

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2032-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2032-15-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2032-14-0x00000000011F0000-0x0000000001257000-memory.dmp

Filesize
412KB

Download