Malware Analysis Report

2024-12-08 02:47

Sample ID 240816-3ep6hsxcrk
Target 1e151420e7d4588d540192e63a590200N.exe
SHA256 f098bd5110e994f068a50ca68758c6072a7fdf16ba64304f05f3b713eb90657c
Tags
floxif backdoor discovery 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

f098bd5110e994f068a50ca68758c6072a7fdf16ba64304f05f3b713eb90657c

Threat Level: Known bad

The file 1e151420e7d4588d540192e63a590200N.exe was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx

Floxif, Floodfix

Detects Floxif payload

Loads dropped DLL

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Enumerates connected drives

Drops file in Program Files directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-16 23:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-16 23:25

Reported

2024-08-16 23:27

Platform

win7-20240708-en

Max time kernel

115s

Max time network

56s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe N/A

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
N/A N/A N/A N/A

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.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\1e151420e7d4588d540192e63a590200N.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe N/A

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\1e151420e7d4588d540192e63a590200N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe

"C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.33.30.197:80 www.aieov.com tcp
US 45.33.30.197:80 www.aieov.com tcp
US 45.33.30.197:80 www.aieov.com tcp
US 45.33.30.197:80 www.aieov.com tcp
US 45.33.30.197:80 www.aieov.com tcp
US 45.33.30.197:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2652-4-0x0000000000400000-0x000000000100A000-memory.dmp

memory/2652-5-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2652-6-0x0000000002D70000-0x0000000002DCA000-memory.dmp

memory/2652-9-0x0000000001110000-0x0000000001111000-memory.dmp

memory/2652-10-0x00000000003F0000-0x00000000003F1000-memory.dmp

memory/2652-11-0x00000000002D0000-0x00000000002D1000-memory.dmp

memory/2652-12-0x0000000001130000-0x0000000001131000-memory.dmp

memory/2652-13-0x0000000002A90000-0x0000000002A91000-memory.dmp

memory/2652-14-0x0000000002A80000-0x0000000002A81000-memory.dmp

memory/2652-15-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

memory/2652-16-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-19-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-18-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-17-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-20-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-21-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-22-0x0000000004880000-0x0000000004881000-memory.dmp

memory/2652-23-0x0000000001140000-0x0000000001141000-memory.dmp

memory/2652-24-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-29-0x0000000000400000-0x000000000100A000-memory.dmp

memory/2652-31-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2652-32-0x0000000002D70000-0x0000000002DCA000-memory.dmp

memory/2652-33-0x0000000004890000-0x0000000004891000-memory.dmp

memory/2652-35-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2652-36-0x0000000076826000-0x0000000076827000-memory.dmp

memory/2652-39-0x0000000076820000-0x0000000076855000-memory.dmp

memory/2652-41-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2652-42-0x0000000076820000-0x0000000076855000-memory.dmp

memory/2652-46-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2652-50-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/2652-54-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2652-58-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-16 23:25

Reported

2024-08-16 23:27

Platform

win10v2004-20240802-en

Max time kernel

116s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe N/A

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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.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\1e151420e7d4588d540192e63a590200N.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe N/A

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\1e151420e7d4588d540192e63a590200N.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe

"C:\Users\Admin\AppData\Local\Temp\1e151420e7d4588d540192e63a590200N.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 198.58.118.167:80 www.aieov.com tcp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 8.8.8.8:53 167.118.58.198.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 198.58.118.167:80 www.aieov.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 198.58.118.167:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 198.58.118.167:80 www.aieov.com tcp
US 198.58.118.167:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 198.58.118.167:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4360-0-0x0000000000400000-0x000000000100A000-memory.dmp

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/4360-5-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4360-15-0x0000000003940000-0x0000000003941000-memory.dmp

memory/4360-14-0x0000000003920000-0x0000000003921000-memory.dmp

memory/4360-17-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-13-0x0000000003930000-0x0000000003931000-memory.dmp

memory/4360-11-0x0000000002F60000-0x0000000002F61000-memory.dmp

memory/4360-10-0x0000000001280000-0x0000000001281000-memory.dmp

memory/4360-9-0x0000000001290000-0x0000000001291000-memory.dmp

memory/4360-8-0x0000000002F40000-0x0000000002F41000-memory.dmp

memory/4360-7-0x00000000037C0000-0x000000000381A000-memory.dmp

memory/4360-28-0x00000000047F0000-0x00000000047F1000-memory.dmp

memory/4360-27-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-26-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-25-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-24-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-23-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-22-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-21-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-20-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-19-0x0000000004800000-0x0000000004801000-memory.dmp

memory/4360-18-0x0000000003350000-0x0000000003351000-memory.dmp

memory/4360-34-0x0000000000400000-0x000000000100A000-memory.dmp

memory/4360-35-0x0000000077B75000-0x0000000077B76000-memory.dmp

memory/4360-36-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4360-37-0x00000000037C0000-0x000000000381A000-memory.dmp

memory/4360-38-0x0000000077B60000-0x0000000077BC3000-memory.dmp

memory/4360-41-0x0000000077B60000-0x0000000077BC3000-memory.dmp

memory/4360-43-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4360-46-0x0000000077B60000-0x0000000077BC3000-memory.dmp

memory/4360-47-0x0000000077B60000-0x0000000077BC3000-memory.dmp

memory/4360-48-0x0000000077B60000-0x0000000077BC3000-memory.dmp

memory/4360-52-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/4360-58-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4360-70-0x0000000010000000-0x0000000010030000-memory.dmp