floxif | 74076ae7fd684261d2a0aa4f4b0d5c3c4716742e43118ee5c4c4ab6dc1767816

General

Target

2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
Size

1.2MB
MD5

a7a46553bd4c980f57cb08a2aa28eeb7
SHA1

a83b0191cea05290c032fe8ea2f6ff901fc93f59
SHA256

74076ae7fd684261d2a0aa4f4b0d5c3c4716742e43118ee5c4c4ab6dc1767816
SHA512

9f1f841d55672c1b7519b6a4eb682294e0bad2d1a4f265291af8fc4fedbca43085d9fd77ab7f78089417a0d5e0a2eedb2eee057943eab5e73342d2d6ce8a4866
SSDEEP

24576:dK4Pq7vwpL09TWyw8Fl6/h15v/tj7marEH7E:dq7+YTWyw8Fl6h3Fj7m+

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
behavioral1/files/0x000c000000012261-1.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.

resource	yara_rule
behavioral1/files/0x000c000000012261-1.dat	acprotect

Loads dropped DLL 3 IoCs

pid	Process
1716	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
2500	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
2500	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c000000012261-1.dat	upx
behavioral1/memory/1716-3-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/1716-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2500-14-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_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	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1716	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
Token: SeDebugPrivilege	2500	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2500	1716	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe	32
PID 1716 wrote to memory of 2500	1716	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe	32
PID 1716 wrote to memory of 2500	1716	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe	32
PID 1716 wrote to memory of 2500	1716	2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe	32

C:\Users\Admin\AppData\Local\Temp\2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_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:1716
- C:\Users\Admin\AppData\Local\Temp\2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-12-28_a7a46553bd4c980f57cb08a2aa28eeb7_bkransomware_floxif_karagany.exe" -z2
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2500

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

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/1716-3-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1716-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/1716-5-0x0000000000060000-0x0000000000187000-memory.dmp

Filesize
1.2MB

Download
memory/2500-11-0x0000000000230000-0x0000000000260000-memory.dmp

Filesize
192KB

Download
memory/2500-14-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2500-12-0x0000000000060000-0x0000000000187000-memory.dmp

Filesize
1.2MB

Download

Analysis

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