floxif | 3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 00:09

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General

Target

3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.exe
Size

277KB
MD5

3a3042f0d0910a30e0a43962b1a56400
SHA1

59f3577974c43eb7bc26d78e36bc090084e3f34b
SHA256

3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9
SHA512

d9ea1bb8e702ab272bc71c8c196a96de36ba0521e5064177ca1c0372669ebf66dea8e866357fd044397389cf493cd321491e2da7311705f4a26f6f94a3822494
SSDEEP

3072:CHrfzYOc6X/YKopeos0gXf+EvC6C36eCWdMuoB+Vq75ycuJFlfSYztH/EqsVMBJ2:MAlpfkTC3dM7B+WCZBV+UdvrEFp7hKal

Score

10^/10

floxif backdoor discovery 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
behavioral1/files/0x000a000000012262-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a000000012262-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
516	3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a000000012262-1.dat	upx
behavioral1/memory/516-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/516-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	516	3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.exe

C:\Users\Admin\AppData\Local\Temp\3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.exe
"C:\Users\Admin\AppData\Local\Temp\3d9f7d6edcfb34f23c81c875c2e3c34cd4d8f1f5c625d11ad58c462ac75278a9N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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/516-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/516-5-0x0000000000020000-0x0000000000055000-memory.dmp

Filesize
212KB

Download
memory/516-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download