floxif | 517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546

General

Target

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe
Size

782KB
MD5

aa6cc9e18514d8a5a66a9e50f9a69ef0
SHA1

44aa60df2ee5777dba944e9b02a134b46ecab4c6
SHA256

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546
SHA512

bc5ecd1151889022e769eba2346b20deee5dcfc7b41edacad34c6ab592ccca89440e86f6d25f50eed94b6121901c8e98a8112cc74a54e4673ddb3fcf3b56e45f
SSDEEP

24576:jQYh1yLmSKrPD37zzH2A6QD/BpqggE2CfNar/yxyR1rEH78:N02rPD37zzH2A6S2IfNarya

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

Processes:

resource	yara_rule
behavioral1/files/0x000d000000012263-1.dat	floxif

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.

Processes:

resource	yara_rule
behavioral1/files/0x000d000000012263-1.dat	acprotect

Loads dropped DLL 1 IoCs

Processes:

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

pid	Process
1612	517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

description	ioc	Process
File opened (read-only)	\??\e:	517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1612-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000d000000012263-1.dat	upx
behavioral1/memory/1612-16-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

Processes:

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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

Processes:

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

pid	Process
1612	517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

description	pid	Process
Token: SeDebugPrivilege	1612	517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe

C:\Users\Admin\AppData\Local\Temp\517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe
"C:\Users\Admin\AppData\Local\Temp\517a7add85590ed1c0e855a7502138d24eb9c156e856a2e4ceee0bdffe367546.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1612

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

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1612-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1612-5-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1612-16-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1612-14-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads