floxif | 1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434

Analysis

max time kernel
149s
max time network
152s
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 07:44

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General

Target

1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Size

13.3MB
MD5

515b551b0dee0c7699365069c47574a2
SHA1

c73428f29ce359eceaa79e9d5d12834437050703
SHA256

1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434
SHA512

1e8020a028584bb0e807609db59460cbfd5eb15321ace3fd9822491aecfe9c5291cda6540f28d4831acd170b32df5dd8d74d06afef2e487358c4dfe64bfc1ec6
SSDEEP

393216:5x5cfro/0q9vm9u+8SIpVnKCAkmbcLl25Z:H58+Qu+6rKJbcL0f

Score

10^/10

floxif backdoor discovery persistence privilege_escalation 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/0x000c000000023b17-1.dat	floxif

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023b17-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b17-1.dat	upx
behavioral2/memory/2964-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2964-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.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	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: SeBackupPrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: SeRestorePrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: 33	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: SeIncBasePriorityPrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: SeCreateGlobalPrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: 33	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: SeIncBasePriorityPrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
Token: SeDebugPrivilege	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 5040	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe	83
PID 2964 wrote to memory of 5040	2964	1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe	83

C:\Users\Admin\AppData\Local\Temp\1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe
"C:\Users\Admin\AppData\Local\Temp\1dc861a4f80637f557357ea45cffaec25ceb6996d0943a3bb067f38ac7a93434.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c set
  2⤵
  PID:5040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/2964-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2964-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2964-8-0x0000000000400000-0x00000000005B7000-memory.dmp

Filesize
1.7MB

Download