Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-12-2024 17:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe
Resource
win7-20241010-en
General
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Target
2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe
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Size
3.9MB
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MD5
63daf9ce70bf83999b5ee3a29f1a0f1a
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SHA1
d9b9a95b04b1eeb97190786b4283782dd70cacc5
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SHA256
d226436494389ca6451e3beb6e670f0b2d7b01ed15fe884912895cd367f25a86
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SHA512
6b83d081aa3a41c7c9842bcb49461121da670988085f6a7efc1bfa9c6ce68a31e5c133f9753247f70e7c03c50033bdd5c90292fe071c1d46fc682f5e8100682a
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SSDEEP
49152:3PCtrQVG+mgo57IX55RdXvTFmpItLc8aOm7s+TgoW:3SQJxX55R6427hTgn
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000c000000023b07-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000c000000023b07-1.dat acprotect -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Loads dropped DLL 1 IoCs
pid Process 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.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: 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
resource yara_rule behavioral2/files/0x000c000000023b07-1.dat upx behavioral2/memory/4860-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4860-57-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4860-61-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4860-76-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4860-82-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4860-88-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4860-96-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NOTEPAD.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000_Classes\Local Settings 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2104 NOTEPAD.EXE -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Suspicious behavior: LoadsDriver 2 IoCs
pid Process 664 Process not Found 664 Process not Found -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe Token: SeLoadDriverPrivilege 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe Token: SeLoadDriverPrivilege 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4860 wrote to memory of 2104 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 84 PID 4860 wrote to memory of 2104 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 84 PID 4860 wrote to memory of 2104 4860 2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-23_63daf9ce70bf83999b5ee3a29f1a0f1a_floxif_icedid.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4860 -
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Windows\temp\cpuz_driver_4860.log2⤵
- System Location Discovery: System Language Discovery
- Opens file in notepad (likely ransom note)
PID:2104
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0
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Filesize
1KB
MD5f512c1982bf6633ed0ea167e2342d48f
SHA1c9a88f1cc9d1f01ea98af452eec619801dc4ef31
SHA256c6c9135c7299314aaab1079f924d96569d2d93298dbc8d4663cf9efd33775650
SHA512d71e808ea39cb28c7d6b4a2d015d49de9ed77aab8ab06d29494d65aa3c5cda895546647e0bc696eb8b413b656edc31fd48d2940d28598141f93ce8d5c58a0ce8
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Filesize
2KB
MD5fd7eebd8258b18335205c36dd2efe6b3
SHA102d727f937c83f9e00127dd1947b64d0534d49f8
SHA256d68c005d7eeb23122670faf2ec335a5e656e611ce88d18f5bc867e800449d236
SHA51205a021f91614f7e429d5269b2fd6ce97954b313d5f862413cd7d944220dae898f8e69432157e2d935f159dad67560b23d995735bf02fe2b267e771c3da3af5ae