Malware Analysis Report

2024-12-08 02:41

Sample ID 240913-rqwa5atenp
Target 2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch
SHA256 17af001335e19e2591951ea747e6c060b98e3b7e24d19a2d31b52387c02997b0
Tags
floxif backdoor discovery trojan upx persistence privilege_escalation
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

17af001335e19e2591951ea747e6c060b98e3b7e24d19a2d31b52387c02997b0

Threat Level: Known bad

The file 2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx persistence privilege_escalation

Floxif, Floodfix

Detects Floxif payload

Event Triggered Execution: AppInit DLLs

ACProtect 1.3x - 1.4x DLL software

Loads dropped DLL

UPX packed file

Enumerates connected drives

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-13 14:24

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 14:24

Reported

2024-09-13 14:27

Platform

win7-20240708-en

Max time kernel

142s

Max time network

52s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.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

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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A
File created C:\Program Files\Common Files\System\symsrv.dll C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.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\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.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 45.33.20.235:80 www.aieov.com tcp
US 45.33.20.235:80 www.aieov.com tcp
US 45.33.20.235:80 www.aieov.com tcp
US 45.33.20.235:80 www.aieov.com tcp
US 45.33.20.235:80 www.aieov.com tcp
US 45.33.20.235:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1920-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1920-12-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1920-13-0x00000000752F6000-0x00000000752F7000-memory.dmp

memory/1920-16-0x00000000752F0000-0x0000000075325000-memory.dmp

memory/1920-17-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1920-18-0x00000000752F0000-0x0000000075325000-memory.dmp

memory/1920-21-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1920-24-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/1920-29-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1920-30-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 14:24

Reported

2024-09-13 14:27

Platform

win10v2004-20240802-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe"

Signatures

Floxif, Floodfix

backdoor trojan floxif

Detects Floxif payload

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

Event Triggered Execution: AppInit DLLs

persistence privilege_escalation

ACProtect 1.3x - 1.4x DLL software

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

Enumerates connected drives

Description Indicator Process Target
File opened (read-only) \??\e: C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.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\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.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\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-13_f8d943c97cdaf0ff4a0816f6a3453e4b_floxif_poet-rat_snatch.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.aieov.com udp
US 45.56.79.23:80 www.aieov.com tcp
US 8.8.8.8:53 23.79.56.45.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 45.56.79.23:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.56.79.23:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/4268-2-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4268-13-0x0000000076275000-0x0000000076276000-memory.dmp

memory/4268-14-0x0000000076260000-0x00000000762C3000-memory.dmp

memory/4268-17-0x0000000076260000-0x00000000762C3000-memory.dmp

memory/4268-18-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4268-22-0x0000000076275000-0x0000000076276000-memory.dmp

memory/4268-23-0x0000000076260000-0x00000000762C3000-memory.dmp

memory/4268-24-0x0000000076260000-0x00000000762C3000-memory.dmp

memory/4268-27-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4268-28-0x0000000076260000-0x00000000762C3000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/4268-33-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4268-39-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4268-46-0x0000000076260000-0x00000000762C3000-memory.dmp