floxif | 075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 15:52

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General

Target

075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe
Size

333KB
MD5

97f29dcab99dd9238f6601edc8a023f0
SHA1

dd0800a6cf456ff61ee99a5a393a741ae513fbb6
SHA256

075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212
SHA512

9d33964fb59212569bbbbdb81c4948cc2687e91d5f5321e2b820cbcf7d04317869a2fbe0c4fa7b3dc8fd684cf06fbaa71cce7ba1059e919d2715a2211085618c
SSDEEP

6144:csOEUXIqmHbrbfdHTJPGRaoqL+Uf8VOk7EwaBV+UdvrEFp7hKit1DYx:XOErqmHb/f9sR3qhf8YwaBjvrEH7Jnc

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/0x00090000000120f9-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00090000000120f9-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
3044	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00090000000120f9-1.dat	upx
behavioral1/memory/3044-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/3044-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	3044	WerFault.exe	29

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	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 2772	3044	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe	30
PID 3044 wrote to memory of 2772	3044	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe	30
PID 3044 wrote to memory of 2772	3044	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe	30
PID 3044 wrote to memory of 2772	3044	075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe	30

C:\Users\Admin\AppData\Local\Temp\075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe
"C:\Users\Admin\AppData\Local\Temp\075e121160c6b2bd98209a1d2cf1a786e3c0270a895e95b84e6c20d29655c212N.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3044 -s 264
  2⤵
  - Program crash
  PID:2772

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/3044-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3044-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3044-5-0x0000000001200000-0x00000000013B0000-memory.dmp

Filesize
1.7MB

Download