floxif | b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18/11/2024, 17:05

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General

Target

b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe
Size

665KB
MD5

46588df3a8e69f56f1e8a0b9f1e5b6d5
SHA1

87e5e46647118066fb496177a6cee8189855f349
SHA256

b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb
SHA512

c4883d059bd3400641bc8190a29ca81660e04e4fd77ca79eaaf6d77ac2fb932b28db7b45621defdcc500d3c15e8f6e8ce1f10824706f59f5eb603bfd662f6bff
SSDEEP

12288:XublIcTafJcLln5QwnVWqqPIBONhxsU/EbBjvrEH7ym+i:XuGs90r/xsU/EhrEH7ym+i

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/0x000a000000023c49-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000a000000023c49-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2332	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.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:	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000023c49-1.dat	upx
behavioral2/memory/2332-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2332-63-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.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	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2332	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe
2332	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe

C:\Users\Admin\AppData\Local\Temp\b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.exe
"C:\Users\Admin\AppData\Local\Temp\b188faadeea18d562233ec5de95bd7961e40b41f742c227994374fbb19231dbb.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:2332

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
2KB

MD5
8df8e883be91952820eca95371c47ccb

SHA1
150313551c8cef9278afc5313508053074e77cc6

SHA256
51affb25630b3142677b5903d19093d11f591a35e54ce1c9acebac923f11f4cc

SHA512
42e6f4a7e1914e18bf5dbde2a199a1590de7f072dbbe419e92841042108744446ca0be922f90ec97a728fb9773f02826ebd8b0e6f0f3e3d65ceda611cf7a2e25

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

Filesize
6KB

MD5
9b26f9ac9240ef0f094433b51712e5c3

SHA1
ef60691e485b430733ae90f2b721360548f795f3

SHA256
3e19c601f08acd686d461225a02098facdde680e6c512445badbff0ea52e2361

SHA512
cef31bea8d7e0715964b1797314a26b4354644452b8c5ded7fa030a375f4fb12dd3a3fca9fdf42190946410828aa0f08dfe9c96ea3a310c91faf50ff8a287350

Download Submit
memory/2332-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2332-63-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2332-61-0x0000000000050000-0x00000000000EA000-memory.dmp

Filesize
616KB

Download