Malware Analysis Report

2024-12-08 02:38

Sample ID 240913-wlkq2szfkp
Target 20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch
SHA256 17af001335e19e2591951ea747e6c060b98e3b7e24d19a2d31b52387c02997b0
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

17af001335e19e2591951ea747e6c060b98e3b7e24d19a2d31b52387c02997b0

Threat Level: Known bad

The file 20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery trojan upx

Floxif, Floodfix

Detects Floxif payload

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 18:00

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-13 18:00

Reported

2024-09-13 18:03

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe

"C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4336,i,8293235976513689021,7261015831736501466,262144 --variations-seed-version --mojo-platform-channel-handle=4324 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 www.aieov.com udp
US 45.33.23.183:80 www.aieov.com tcp
US 8.8.8.8:53 183.23.33.45.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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 45.33.23.183:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.33.23.183:80 www.aieov.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 45.33.23.183:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.33.23.183:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.33.23.183:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.33.23.183:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/3416-2-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3416-13-0x00000000754F5000-0x00000000754F6000-memory.dmp

memory/3416-14-0x00000000754E0000-0x0000000075543000-memory.dmp

memory/3416-17-0x00000000754E0000-0x0000000075543000-memory.dmp

memory/3416-18-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3416-19-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3416-22-0x00000000754F5000-0x00000000754F6000-memory.dmp

memory/3416-23-0x00000000754E0000-0x0000000075543000-memory.dmp

memory/3416-26-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/3416-31-0x0000000010000000-0x0000000010030000-memory.dmp

memory/3416-37-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-13 18:00

Reported

2024-09-13 18:03

Platform

win7-20240729-en

Max time kernel

146s

Max time network

66s

Command Line

"C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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
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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.exe

"C:\Users\Admin\AppData\Local\Temp\20240913f8d943c97cdaf0ff4a0816f6a3453e4bfloxifpoetratsnatch.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 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp
US 45.56.79.23:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/2636-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-12-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-13-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-14-0x0000000074F76000-0x0000000074F77000-memory.dmp

memory/2636-17-0x0000000074F70000-0x0000000074FA5000-memory.dmp

memory/2636-18-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-19-0x0000000074F70000-0x0000000074FA5000-memory.dmp

memory/2636-22-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-23-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-26-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/2636-29-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-32-0x0000000010000000-0x0000000010030000-memory.dmp

memory/2636-38-0x0000000010000000-0x0000000010030000-memory.dmp