Malware Analysis Report

2025-01-02 07:19

Sample ID 240915-kyfgbavhrd
Target 20240915cf940d8936e3906504654137aa421b19floxificedid
SHA256 604f0950affb3fa4aa1a9825d8d6b04c6d49cb1f5ec61de320c84964b5364ed6
Tags
floxif backdoor discovery spyware stealer trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

604f0950affb3fa4aa1a9825d8d6b04c6d49cb1f5ec61de320c84964b5364ed6

Threat Level: Known bad

The file 20240915cf940d8936e3906504654137aa421b19floxificedid was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery spyware stealer trojan upx

Floxif, Floodfix

Detects Floxif payload

Loads dropped DLL

ACProtect 1.3x - 1.4x DLL software

Executes dropped EXE

UPX packed file

Reads user/profile data of web browsers

Enumerates connected drives

Checks installed software on the system

Drops file in Program Files directory

Drops file in Windows directory

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-15 09:00

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-15 09:00

Reported

2024-09-15 09:02

Platform

win7-20240708-en

Max time kernel

142s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

backdoor
Description Indicator Process Target
N/A N/A N/A N/A

ACProtect 1.3x - 1.4x DLL software

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\geek64.exe N/A
N/A N/A N/A N/A

Reads user/profile data of web browsers

spyware stealer

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks installed software on the system

discovery

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\Installer\{AC76BA86-7AD7-1033-7B44-A90000000001}\SC_Reader.exe C:\Users\Admin\AppData\Local\Temp\geek64.exe N/A
File opened for modification C:\Windows\Installer\{90140000-002A-0000-1000-0000000FF1CE}\ShellUI.MST C:\Users\Admin\AppData\Local\Temp\geek64.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe

"C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe"

C:\Users\Admin\AppData\Local\Temp\geek64.exe

C:\Users\Admin\AppData\Local\Temp\geek64.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 geekuninstaller.com udp
US 173.230.144.164:443 geekuninstaller.com tcp
US 173.230.144.164:443 geekuninstaller.com tcp
US 8.8.8.8:53 5isohu.com udp
US 173.230.144.164:443 geekuninstaller.com tcp
US 173.230.144.164:443 geekuninstaller.com tcp
US 8.8.8.8:53 www.aieov.com udp
US 72.14.185.43:80 www.aieov.com tcp
US 72.14.185.43:80 www.aieov.com tcp
US 72.14.185.43:80 www.aieov.com tcp
US 72.14.185.43:80 www.aieov.com tcp
US 72.14.185.43:80 www.aieov.com tcp
US 72.14.185.43:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2972-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2972-5-0x0000000000408000-0x000000000040B000-memory.dmp

\Users\Admin\AppData\Local\Temp\geek64.exe

MD5 2062e8118cf10d1fba19a80a885c80f0
SHA1 7e4a6fee0595832708b9cc9ee9b7d589f9c2bcc8
SHA256 316fbec9eca41deef9a63837dfaf4de4369ca507c5b2143cd3a805cb238e5057
SHA512 684533abd11842833a0a4bab308c5a06253307dd8f0297211624eb1acd36ade78bf85a19cf2c8f0cc0cf85593732ebd612d6c32ce49eff284ebd6d7e8aa922b2

memory/2972-17-0x0000000000400000-0x0000000000A56000-memory.dmp

memory/2972-18-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2972-22-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2972-25-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2972-28-0x0000000010000000-0x0000000010030000-memory.dmp

C:\Program Files\Common Files\System\symsrv.dll.000

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/2972-33-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2972-34-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-15 09:00

Reported

2024-09-15 09:02

Platform

win10v2004-20240802-en

Max time kernel

146s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

backdoor
Description Indicator Process Target
N/A N/A N/A N/A

ACProtect 1.3x - 1.4x DLL software

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\geek64.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Reads user/profile data of web browsers

spyware stealer

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks installed software on the system

discovery

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe

"C:\Users\Admin\AppData\Local\Temp\20240915cf940d8936e3906504654137aa421b19floxificedid.exe"

C:\Users\Admin\AppData\Local\Temp\geek64.exe

C:\Users\Admin\AppData\Local\Temp\geek64.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 geekuninstaller.com udp
US 173.230.144.164:443 geekuninstaller.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 164.144.230.173.in-addr.arpa udp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 173.222.211.43:80 r10.o.lencr.org tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 168.245.100.95.in-addr.arpa udp
US 8.8.8.8:53 43.211.222.173.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 235.20.33.45.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.33.20.235:80 www.aieov.com tcp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.33.20.235:80 www.aieov.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.33.20.235:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2396-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2396-5-0x0000000000408000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\geek64.exe

MD5 2062e8118cf10d1fba19a80a885c80f0
SHA1 7e4a6fee0595832708b9cc9ee9b7d589f9c2bcc8
SHA256 316fbec9eca41deef9a63837dfaf4de4369ca507c5b2143cd3a805cb238e5057
SHA512 684533abd11842833a0a4bab308c5a06253307dd8f0297211624eb1acd36ade78bf85a19cf2c8f0cc0cf85593732ebd612d6c32ce49eff284ebd6d7e8aa922b2

memory/2396-23-0x0000000000400000-0x0000000000A56000-memory.dmp

memory/2396-26-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2396-27-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2396-32-0x0000000010000000-0x0000000010030000-memory.dmp

C:\Program Files\Common Files\System\symsrv.dll.000

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/2396-37-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2396-43-0x0000000010000000-0x0000000010030000-memory.dmp