floxif | 30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb

General

Target

30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe
Size

286KB
MD5

41c6acb43e43d15d30a54f8475ae5cd8
SHA1

276d4a1c66f739b598b7331defc308f82dd43e96
SHA256

30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb
SHA512

f184a6d04ce7be3340163b25d3b21b7c0a7d8f5a655a03c23651301805e40a9fb9a3a94944ac2bee4f0e06c0b55cde1d4d4844e7c34248c08f76c7e69dfd47d4
SSDEEP

6144:4CogKNkhSR/5kHouyXnZhB+R8WHqBV+UdvrEFp7hK8WTUJ:43gKNkhm/JuyXnPB+R8WHqBjvrEH70UJ

Score

10^/10

floxif backdoor discovery persistence privilege_escalation trojan upx

Malware Config

Signatures

Floxif family
floxif
Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
backdoor trojan floxif

Detects Floxif payload 1 IoCs

backdoor

resource	yara_rule
behavioral2/files/0x000c000000023cec-2.dat	floxif

Downloads MZ/PE file 1 IoCs

flow	pid	Process
41	1060	Process not Found

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000c000000023cec-2.dat	acprotect

Loads dropped DLL 3 IoCs

pid	Process
1700	30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe
1592	Process not Found
2308	MicrosoftEdgeUpdate.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000c000000023cec-2.dat	upx
behavioral2/memory/1700-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1700-8-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2308-12-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2308-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2308-16-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2308	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2308	MicrosoftEdgeUpdate.exe
2308	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1700	30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe
Token: SeDebugPrivilege	2308	MicrosoftEdgeUpdate.exe

C:\Users\Admin\AppData\Local\Temp\30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe
"C:\Users\Admin\AppData\Local\Temp\30b405ceeb63db08765d1449b69f73d165ebac558d2b511573ced152ac7436cb.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1700

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODczMzMzNzQ4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2308

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Privilege Escalation

Event Triggered Execution

1

T1546

AppInit DLLs

1

T1546.010

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1700-1-0x00000000000BB000-0x00000000000BC000-memory.dmp

Filesize
4KB

Download
memory/1700-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1700-6-0x00000000000B0000-0x00000000000E7000-memory.dmp

Filesize
220KB

Download
memory/1700-8-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2308-12-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2308-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2308-14-0x00000000744D0000-0x00000000746F6000-memory.dmp

Filesize
2.1MB

Download
memory/2308-16-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download

Analysis

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