floxif | 2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-12-2024 20:35

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General

Target

2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe
Size

706KB
MD5

d106edfc950981210c470842e9764b59
SHA1

2a665fc6f9dde65fc2aad7f01eb479a1df19fbc4
SHA256

2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7
SHA512

5a2df0c4b44262af75ecc9175e443e10f9af96a5716e96438e614abf38f9db530ba958d135c80fcd0cb763dc737845d60772c172705b146cbceda807318e2bb0
SSDEEP

12288:v1s7dma5sX09Ond4zFHj5V/NDUSKdzWLYWa2jGPFA3Ts9y156BjvrEH7O:v4mA5ZDUjaEWljGu3T4KMrEH7O

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/0x0007000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

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

Loads dropped DLL 1 IoCs

pid	Process
2840	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/2840-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2840-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.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	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2840	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe
2840	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe
Token: SeDebugPrivilege	2840	2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe

C:\Users\Admin\AppData\Local\Temp\2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.exe
"C:\Users\Admin\AppData\Local\Temp\2d3b887fb08bbb375154c932c83610a4faf1b2c3a9835b808b89f8afb712e2a7.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:2840

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

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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/2840-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2840-5-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2840-6-0x0000000000400000-0x00000000004A3000-memory.dmp

Filesize
652KB

Download
memory/2840-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download