Analysis
-
max time kernel
144s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21-12-2024 00:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe
Resource
win7-20240903-en
General
-
Target
2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe
-
Size
2.1MB
-
MD5
b636e73643ebae232f5e13e5ac0fcfd5
-
SHA1
02d28009b3dbb0455ba08ce02c6f77bc7206b84a
-
SHA256
89ab86eaec380069331f01ac9f08dbc91da45885e88a6b43d5b607470e0095d2
-
SHA512
64c14bd4bca89b029a32177d6f93b5c333c0c7782b8fa4fcf716ca451239a22f0e5bfeaf4e85387df32aa933252b23368add0280c94b42918b581deff10fe9f6
-
SSDEEP
49152:o2K/LZO2tGJln45YUgtlS3TiiPs46ypqhLivB9k91b:sLZO2tKlSYUgtlS3/7psLivBy9N
Malware Config
Signatures
-
Floxif family
-
Detects Floxif payload 1 IoCs
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 1 IoCs
pid Process 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\e: 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
resource yara_rule behavioral1/memory/2540-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/files/0x0007000000012117-1.dat upx behavioral1/memory/2540-12-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2540-16-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2540-20-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2540-24-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2540-28-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2540-32-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe 2540 2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-21_b636e73643ebae232f5e13e5ac0fcfd5_bkransomware_floxif.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2540
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0
-
Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab