floxif | 2a51e2f1f7bb482735e3390a84cb745b0ae8e5bdd1018fe8181d188a9af0832d

General

Target

2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe
Size

971KB
MD5

a061fbb818f6bde424d083d4529f6834
SHA1

8f0a4e4203a97b7adcbeeccc1d6f8952ec37ae09
SHA256

2a51e2f1f7bb482735e3390a84cb745b0ae8e5bdd1018fe8181d188a9af0832d
SHA512

cdd830d6009c291d2df36f5e1d882c2d7962e5171448759e0ea0a026d34479cc7f915840e0feef433bb889050712030017f30989304f1b6b0923309193e01342
SSDEEP

12288:u5xktWZoK3+REjIU+diRzSkYgQK1QzFXE0owUlg2t9ExxsxJdjwg+Tz+UVnF6wg+:SjX9uwwUlLt9ExmW3yNJBpvq1rEH7A

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/0x0007000000012117-1.dat	floxif

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
2420	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe
2256	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000012117-1.dat	upx
behavioral1/memory/2420-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2420-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2256-10-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2256-13-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.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	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe
Token: SeDebugPrivilege	2256	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2256	2420	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe	31
PID 2420 wrote to memory of 2256	2420	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe	31
PID 2420 wrote to memory of 2256	2420	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe	31
PID 2420 wrote to memory of 2256	2420	2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.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:2420
- C:\Users\Admin\AppData\Local\Temp\2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-12-18_a061fbb818f6bde424d083d4529f6834_bkransomware_floxif_karagany.exe" -z2
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

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/2256-10-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2256-11-0x0000000001020000-0x0000000001110000-memory.dmp

Filesize
960KB

Download
memory/2256-13-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2420-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2420-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2420-5-0x0000000001020000-0x0000000001110000-memory.dmp

Filesize
960KB

Download

Analysis

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