Malware Analysis Report

2025-01-02 07:22

Sample ID 240916-bv7xqasglm
Target 2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid
SHA256 c4c38e4993a50e6bb4a2729c85468c16ed4a7a4a5cc5e48af6548725a30c18e9
Tags
floxif backdoor discovery persistence privilege_escalation 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

c4c38e4993a50e6bb4a2729c85468c16ed4a7a4a5cc5e48af6548725a30c18e9

Threat Level: Known bad

The file 2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid was found to be: Known bad.

Malicious Activity Summary

floxif backdoor discovery persistence privilege_escalation trojan upx

Floxif, Floodfix

Detects Floxif payload

Event Triggered Execution: AppInit DLLs

ACProtect 1.3x - 1.4x DLL software

UPX packed file

Loads dropped DLL

Enumerates connected drives

Drops file in Program Files directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-16 01:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-16 01:29

Reported

2024-09-16 01:31

Platform

win7-20240704-en

Max time kernel

145s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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 198.58.118.167:80 www.aieov.com tcp
US 198.58.118.167:80 www.aieov.com tcp
US 198.58.118.167:80 www.aieov.com tcp
US 198.58.118.167:80 www.aieov.com tcp
US 198.58.118.167:80 www.aieov.com tcp
US 198.58.118.167:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/1676-3-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1676-5-0x0000000000450000-0x0000000000453000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\A1D26E2\A54475468C.tmp

MD5 97f194a9cdc5989a3d29982cffc14dbb
SHA1 47655753967195c39ec411cb4ddf23b116baf9d1
SHA256 cc45fdb638f46a2c1d5794254c20ec32e25487377789a6975955e64a9e07ccd0
SHA512 d0644aeee9ed0f160c58045f8110b81a45fd381191c1a6f4b313443b2efb0a7b9298d4d23e75c8154dba2f1165d2fbdcd50085b4aa23fefb056986de56b1eaee

C:\Users\Admin\Documents\EasyInfo\EasyInfo.htm

MD5 8c73b9b809ea79b9fb8d93aa201aeb7c
SHA1 2027d149076bd5f9726573bd4750ec5e996c019a
SHA256 067c8b55e764427d7d4b0e12488f65188b637bb99ff211c7c0c54bc350e41141
SHA512 c457dc0e98ba784c40c4bf85b6cf8ec343c77405c60268f500f422759643679b603f18f7a8bd41c6c2a22d6ad631baf1f6177bf4e153b0a0f2ae4ba63d0a7524

memory/1676-70-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1676-71-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1676-72-0x0000000000400000-0x000000000048D000-memory.dmp

memory/1676-75-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1676-78-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1676-81-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/1676-84-0x0000000010000000-0x0000000010030000-memory.dmp

memory/1676-87-0x0000000010000000-0x0000000010030000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-16 01:29

Reported

2024-09-16 01:31

Platform

win10v2004-20240802-en

Max time kernel

146s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
File created \??\c:\program files\common files\system\symsrv.dll.000 C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.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\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
Key created \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Internet Explorer\IESettingSync C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A
Set value (int) \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2" C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe

"C:\Users\Admin\AppData\Local\Temp\2024-09-16_81fe3e22bfbd69dee842957c5e815c1d_floxif_icedid.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 www.aieov.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.19.79.45.in-addr.arpa udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 5isohu.com udp
US 45.79.19.196:80 www.aieov.com tcp

Files

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

MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

memory/4824-4-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4824-6-0x0000000000450000-0x0000000000453000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\A1D26E2\AEFDAFC12D8.tmp

MD5 97f194a9cdc5989a3d29982cffc14dbb
SHA1 47655753967195c39ec411cb4ddf23b116baf9d1
SHA256 cc45fdb638f46a2c1d5794254c20ec32e25487377789a6975955e64a9e07ccd0
SHA512 d0644aeee9ed0f160c58045f8110b81a45fd381191c1a6f4b313443b2efb0a7b9298d4d23e75c8154dba2f1165d2fbdcd50085b4aa23fefb056986de56b1eaee

memory/4824-33-0x0000000000400000-0x000000000048D000-memory.dmp

memory/4824-36-0x0000000010000000-0x0000000010030000-memory.dmp

C:\Users\Admin\Documents\EasyInfo\EasyInfo.htm

MD5 04b351b8880435eb9e08132d0139f363
SHA1 fc40ddfb6947a72ed762216fa85402e52750df9f
SHA256 affdd181d061f2aa68e14e503ca8aee59fc47c4248c28e6465b8c8016724f7f7
SHA512 298c258016ce7c1d4334b820a68d2ea8abdb7ceb6f692aab8458d6b53d2ffb97d2d123b74a334b015cdb0374cec00953cc32489c93cbf233c455789dee8a830d

memory/4824-53-0x0000000000400000-0x000000000048D000-memory.dmp

memory/4824-52-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4824-58-0x0000000010000000-0x0000000010030000-memory.dmp

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

MD5 1130c911bf5db4b8f7cf9b6f4b457623
SHA1 48e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256 eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA512 94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

memory/4824-63-0x0000000010000000-0x0000000010030000-memory.dmp

memory/4824-69-0x0000000010000000-0x0000000010030000-memory.dmp