floxif | 8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033

Analysis

max time kernel
10s
max time network
16s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 06:47

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Reason

Machine shutdown

Report Analysis Logs

General

Target

8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe
Size

357KB
MD5

a97021623004bfaa46a0419c5cc82460
SHA1

e6ad7223d63c05bacde3828741940ca28d0b8a68
SHA256

8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033
SHA512

2f17632128269410a9fbce2fc9dd08df4c92c00fd79de27935088ec1e75ef85543c5cf6769bc2357c719855c0661bb0aa1a65b99fee3ecf81c6d73a0102b8e34
SSDEEP

6144:v0TpJ7+/8N180QCJU380FOqakPhG6QfzWE4xyN1mFmbZYMKaXhJBV+UdvrEFp7hO:Y37Ai11QCJUs0FOqaShCyUNr6iJBjvr1

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/0x000d000000012263-2.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000d000000012263-2.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2892	8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2892-0-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/files/0x000d000000012263-2.dat	upx
behavioral1/memory/2892-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2892-17-0x0000000000400000-0x00000000004B4000-memory.dmp	upx
behavioral1/memory/2892-19-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2892	8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe

C:\Users\Admin\AppData\Local\Temp\8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe
"C:\Users\Admin\AppData\Local\Temp\8b1013698f6c088cbd07dde61d76ccd474a42680e3a97c1883f3cd7db153d033N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2840

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2016-21-0x00000000026E0000-0x00000000026E1000-memory.dmp

Filesize
4KB

Download
memory/2840-20-0x00000000029C0000-0x00000000029C1000-memory.dmp

Filesize
4KB

Download
memory/2892-0-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2892-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2892-17-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2892-19-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download