floxif | 8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553

Analysis

max time kernel
93s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 06:44

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General

Target

8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe
Size

230KB
MD5

fc483745bd7fb739bb4cce9f0e4fe4c9
SHA1

e3e5b2feff64116e6a639cdb2fc66dbefc9b47ed
SHA256

8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553
SHA512

761013068fb0d65c1bdcacb126e2afe7d04e881e0ea587bf8600da67e7cc05e274568e659ba0f0e7b29759c0ebaf89be6eba9bf6f02c09d746217c8865d0ae9a
SSDEEP

3072:MwW8yMLn7zESVMdN3sShOxmU6GtqGTUM06qnMfxCFxUs2lQBV+UdE+rECWp7hK8:tFL74/H3strvqnyKBV+UdvrEFp7hK8

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/0x000c000000023b91-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b91-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3004	8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b91-1.dat	upx
behavioral2/memory/3004-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3004-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1376	3004	WerFault.exe	82
3788	3004	WerFault.exe	82

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	8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3004	8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe

C:\Users\Admin\AppData\Local\Temp\8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe
"C:\Users\Admin\AppData\Local\Temp\8afc425bc681e7fb0df03866f73a9a14635f70d8a13743d2cae1009767af7553.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 584
  2⤵
  - Program crash
  PID:1376
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 604
  2⤵
  - Program crash
  PID:3788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3004 -ip 3004
1⤵
PID:5056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3004 -ip 3004
1⤵
PID:4540

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

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
memory/3004-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3004-6-0x0000000000EB0000-0x0000000000ED5000-memory.dmp

Filesize
148KB

Download
memory/3004-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download