floxif | bff6108f26caee38a6f557a0bd1181156729e4921bdf5b188bc84c1315a0ee91

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 09:41

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General

Target

fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe
Size

349KB
MD5

fb033a5fb5a4f812f54a8b21913e1956
SHA1

1486390c71bca1901018f50a6b36eab660dffda4
SHA256

bff6108f26caee38a6f557a0bd1181156729e4921bdf5b188bc84c1315a0ee91
SHA512

6607f877360f4131bdf616c80f42b42e39d10c09bd318f4a936607b3beaa349084d6d4bdd73abb8097c45a67118fdd637fcd476e8c9530f8e412f350b288dfa0
SSDEEP

6144:uixrzOTp+pbdZNSSTB8MqMftqnTgJXZr0pnyEqma5V27:VzHpbNSSTZqM1Kvpima727

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/0x000d000000023bb4-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000d000000023bb4-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
828	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.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:	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d000000023bb4-1.dat	upx
behavioral2/memory/828-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/828-11-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.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	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
828	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe
828	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	828	fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb033a5fb5a4f812f54a8b21913e1956_JaffaCakes118.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:828

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
72KB

MD5
3e779be94bd11e41dba0bb6ec8cf8a05

SHA1
2a3d6f292e61acae54ffbcd59d71332c70c70863

SHA256
16efba9c92b36269b250ce0de28af2007c47f621423adf3ffc9243e30448bc88

SHA512
20ea4e4eb95191d5a186dbc47d5dc33ed9d1ef303da74f6526aec06b43571a4a3ee99ab8e244c94c623b28a43fbdcf57c240d80662377d6f0261e5558e9c5d65

Download Submit
memory/828-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/828-5-0x0000000000406000-0x0000000000409000-memory.dmp

Filesize
12KB

Download
memory/828-11-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download