floxif | 4a718e8332695f80c795d74c50ffc150bceda4dedd02b3a63cad4d07ec403db2

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/01/2025, 19:37

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General

Target

JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe
Size

313KB
MD5

7b6b8f12128b24e67c5f9a6cdaaac470
SHA1

bac5ae4e85f3c1dfdd00d435c296073c025d4516
SHA256

4a718e8332695f80c795d74c50ffc150bceda4dedd02b3a63cad4d07ec403db2
SHA512

d78af636917baebef24d394bad2a7208e372509cdac382c3d96f504cfcaa37f6d0e77731a531a27803dfe1296b2ec54a3b32372f5425128f8a7a4fc86b03b1f5
SSDEEP

6144:z1IbU/Zo9UiZcuLH0JGIZp6IQcAExQ6h1tlxq:ybURoiiZcukgInAE3xq

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
behavioral1/files/0x000700000001211a-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000700000001211a-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2356	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000700000001211a-1.dat	upx
behavioral1/memory/2356-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2356-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2112	2356	WerFault.exe	29

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	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2112	2356	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe	30
PID 2356 wrote to memory of 2112	2356	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe	30
PID 2356 wrote to memory of 2112	2356	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe	30
PID 2356 wrote to memory of 2112	2356	JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b6b8f12128b24e67c5f9a6cdaaac470.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:2356
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 172
  2⤵
  - Program crash
  PID:2112

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

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

Filesize
72KB

MD5
ccf7e487353602c57e2e743d047aca36

SHA1
99f66919152d67a882685a41b7130af5f7703888

SHA256
eaf76e5f1a438478ecf7b678744da34e9d9e5038b128f0c595672ee1dbbfd914

SHA512
dde0366658082b142faa6487245bfc8b8942605f0ede65d12f8c368ff3673ca18e416a4bf132c4bee5be43e94aef0531be2008746c24f1e6b2f294a63ab1486c

Download Submit
memory/2356-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2356-5-0x0000000000EC0000-0x0000000000EFF000-memory.dmp

Filesize
252KB

Download
memory/2356-6-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download