floxif | da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
12-12-2024 03:38

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General

Target

da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe
Size

3.1MB
MD5

95e1ad618b5b364bf4b125a77f4c397d
SHA1

5812ea66e1ca2131d585704c9f1b9b256af997b2
SHA256

da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952
SHA512

a895fd6090694a3298f964e6ff204dc92de6b898b0534ebbccb7083119631ec2d4a18505a5261199bd9f006c3100a9eca2e1ec098299a8a2fd86d4338775bc26
SSDEEP

49152:85BTq9iiUEnz3l3iHlIRQXhLVDXEjTWNANwss3U1qOr:uB29V3lE6R8hLVD0YzUUI

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
behavioral1/files/0x000a000000012263-1.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
behavioral1/files/0x000a000000012263-1.dat	acprotect

Loads dropped DLL 10 IoCs

pid	Process
2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe
2836	arp.exe
2872	arp.exe
1692	arp.exe
2644	arp.exe
2716	arp.exe
2932	arp.exe
2812	arp.exe
2696	arp.exe
2524	arp.exe

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
2524	arp.exe
2836	arp.exe
2872	arp.exe
2644	arp.exe
2716	arp.exe
2696	arp.exe
2932	arp.exe
2812	arp.exe
1692	arp.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a000000012263-1.dat	upx
behavioral1/memory/2828-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2836-7-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2836-8-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2872-11-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1692-12-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/1692-14-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2716-18-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2524-26-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2696-25-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2812-23-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2828-44-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2932-20-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2644-17-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2644-45-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2696-53-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2524-55-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2716-52-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2932-49-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2812-47-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2872-56-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe

System Location Discovery: System Language Discovery 1 TTPs 10 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	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe
Token: SeDebugPrivilege	2836	arp.exe
Token: SeDebugPrivilege	1692	arp.exe
Token: SeDebugPrivilege	2716	arp.exe
Token: SeDebugPrivilege	2932	arp.exe
Token: SeDebugPrivilege	2812	arp.exe
Token: SeDebugPrivilege	2524	arp.exe
Token: SeDebugPrivilege	2696	arp.exe
Token: SeDebugPrivilege	2644	arp.exe
Token: SeDebugPrivilege	2872	arp.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2836	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	30
PID 2828 wrote to memory of 2836	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	30
PID 2828 wrote to memory of 2836	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	30
PID 2828 wrote to memory of 2836	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	30
PID 2828 wrote to memory of 2872	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	32
PID 2828 wrote to memory of 2872	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	32
PID 2828 wrote to memory of 2872	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	32
PID 2828 wrote to memory of 2872	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	32
PID 2828 wrote to memory of 2716	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	33
PID 2828 wrote to memory of 2716	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	33
PID 2828 wrote to memory of 2716	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	33
PID 2828 wrote to memory of 2716	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	33
PID 2828 wrote to memory of 1692	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	34
PID 2828 wrote to memory of 1692	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	34
PID 2828 wrote to memory of 1692	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	34
PID 2828 wrote to memory of 1692	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	34
PID 2828 wrote to memory of 2812	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	35
PID 2828 wrote to memory of 2812	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	35
PID 2828 wrote to memory of 2812	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	35
PID 2828 wrote to memory of 2812	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	35
PID 2828 wrote to memory of 2644	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	38
PID 2828 wrote to memory of 2644	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	38
PID 2828 wrote to memory of 2644	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	38
PID 2828 wrote to memory of 2644	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	38
PID 2828 wrote to memory of 2932	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	39
PID 2828 wrote to memory of 2932	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	39
PID 2828 wrote to memory of 2932	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	39
PID 2828 wrote to memory of 2932	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	39
PID 2828 wrote to memory of 2696	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	41
PID 2828 wrote to memory of 2696	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	41
PID 2828 wrote to memory of 2696	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	41
PID 2828 wrote to memory of 2696	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	41
PID 2828 wrote to memory of 2524	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	45
PID 2828 wrote to memory of 2524	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	45
PID 2828 wrote to memory of 2524	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	45
PID 2828 wrote to memory of 2524	2828	da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe	45

C:\Users\Admin\AppData\Local\Temp\da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe
"C:\Users\Admin\AppData\Local\Temp\da2481397f18695c0b9251e607e589a274252dc30ae04e56d13d35f14f227952.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\arp.exe
  arp -a
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.0.1 73-c4-ba-fa-c4-86
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2872
- C:\Windows\SysWOW64\arp.exe
  arp -s 10.127.255.255 8f-53-2a-9c-01-f3
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- C:\Windows\SysWOW64\arp.exe
  arp -s 37.27.61.184 2c-04-1f-8c-34-24
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1692
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.22 e9-68-b5-35-4b-1b
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2812
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.251 1b-6c-9b-ed-6c-09
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Windows\SysWOW64\arp.exe
  arp -s 224.0.0.252 f3-79-30-69-a2-9b
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2932
- C:\Windows\SysWOW64\arp.exe
  arp -s 239.255.255.250 e0-d6-8d-8f-6d-f0
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2696
- C:\Windows\SysWOW64\arp.exe
  arp -s 255.255.255.255 73-80-16-1d-09-02
  2⤵
  - Loads dropped DLL
  - Network Service Discovery
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2524

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

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\SogouPY.users\acc.dat.wtm

Filesize
80B

MD5
0d3e8a4bfc59f48845609968d5d06376

SHA1
b2b7dee230a6af8f0f174adb47d2e78f8d18cd24

SHA256
bc346deca8284d6ce130dcb98f816fe2313d2b3607f7fe99a34b1a281604b63a

SHA512
f6a0a84a55008b5e2427645f90b064fc3825f5578db4a903da2b267758d70faf66f824932e044f57a4e7f46be227b970f52fab43b9ef429bb94cb6525da4d71d

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
71KB

MD5
4fcd7574537cebec8e75b4e646996643

SHA1
efa59bb9050fb656b90d5d40c942fb2a304f2a8b

SHA256
8ea3b17e4b783ffc0bc387b81b823bf87af0d57da74541d88ba85314bb232a5d

SHA512
7f1a7ef64d332a735db82506b47d84853af870785066d29ccaf4fdeab114079a9f0db400e01ba574776a0d652a248658fe1e8f9659cdced19ad6eea09644ea3e

Download Submit
memory/1692-14-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1692-12-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2524-55-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2524-26-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2644-17-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2644-45-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2696-53-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2696-25-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2716-18-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2716-52-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2812-47-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2812-23-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2828-44-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2828-42-0x0000000000840000-0x0000000000B5C000-memory.dmp

Filesize
3.1MB

Download
memory/2828-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2836-8-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2836-7-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2872-11-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2872-56-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2932-20-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2932-49-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download