floxif | f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 05:47

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General

Target

f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
Size

412KB
MD5

4de03879d4684700ae11b5cd15089d25
SHA1

82b49dd3a60452fdcd20adbda7b3b574c7a76d13
SHA256

f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd
SHA512

3e57d6afa532fe49c54aca0c67900af850f939f8e85416ee2d8643cdea172e28b288a578ea2ba51c73a5ef6a89212c44c130b97f27366550496c0712f56de15d
SSDEEP

6144:PuBSGeC+MxQoij9ng1NvidaXrmBBV+UdvrEFp7hK30ltS:VGeC+xoij9n0vidaXyBBjvrEH7W0O

Score

10^/10

floxif neshta backdoor discovery persistence spyware stealer 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
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Neshta family
neshta

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral1/files/0x0008000000016ace-14.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0008000000016ace-14.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
1760	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Loads dropped DLL 3 IoCs

pid	Process
1852	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
1760	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
1852	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1760-16-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x0008000000016ace-14.dat	upx
behavioral1/memory/1760-20-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File created	C:\Program Files\Common Files\System\symsrv.dll	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1760	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 1760	1852	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe	30
PID 1852 wrote to memory of 1760	1852	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe	30
PID 1852 wrote to memory of 1760	1852	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe	30
PID 1852 wrote to memory of 1760	1852	f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe	30

C:\Users\Admin\AppData\Local\Temp\f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
"C:\Users\Admin\AppData\Local\Temp\f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\3582-490\f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSOCache\ALLUSE~1\{90140~1\DW20.EXE

Filesize
859KB

MD5
754309b7b83050a50768236ee966224f

SHA1
10ed7efc2e594417ddeb00a42deb8fd9f804ed53

SHA256
acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6

SHA512
e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\f84ef0f3decd125990c4a4af778c83510c8e11797bc990c90c558557019471bd.exe

Filesize
371KB

MD5
038bef0672926ba42b35681b33af9900

SHA1
b4b1529d5aa3f8fb4d45896ed52a5ce0e5dfaeb8

SHA256
c6fde7ba7dd59cdaa6e30716824eb3d7d4fd1a888065f33de4a9b84a195777e9

SHA512
2b04558c75b4fa677b153212659cbb18aab0a65fbc42a2fd434238740d74501a72b8fb2a054ae1f7a8ad2ca3b59ab9c0b0b554558253b00b47302b37c8596e7c

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1760-16-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1760-20-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1760-18-0x0000000001000000-0x0000000005D3E000-memory.dmp

Filesize
77.2MB

Download
memory/1852-93-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1852-94-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1852-95-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1852-96-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1852-98-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads