Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
17/09/2022, 03:19
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
300KB
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MD5
584b78ef69431b38b3118f8349b2d278
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SHA1
8a89c4ce82cc2f8d0ade808753cd23ab4c0ff2f5
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SHA256
8e11ab9affe9d5c9adce3088b154d9a4b5edeedf2ea048add9140efdf32ac4e5
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SHA512
c4d8159df012ca1be198f13d31f5b0d0003af09fd918db9b317c57ab385c3eddbba5faae054a0afbd58964d5ca48a2c1165082509b3129a1d2a268a9193e3420
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SSDEEP
3072:6FX7GtdGqb+TgL0G6WgJu9R/Wy/uySydbeTAYGOlnronqu3O0KMgYm7DHOM/h3B0:C7GXL0xWo82zln8qu3O07QOnigabwVf
Malware Config
Signatures
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Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2540-133-0x0000000000500000-0x0000000000509000-memory.dmp family_smokeloader behavioral2/memory/4532-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4532-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4532-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1264-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1264-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
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Executes dropped EXE 2 IoCs
pid Process 1444 cethegf 1264 cethegf -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2540 set thread context of 4532 2540 file.exe 82 PID 1444 set thread context of 1264 1444 cethegf 88 -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI cethegf Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI cethegf Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI cethegf -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4532 file.exe 4532 file.exe 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found 2596 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2596 Process not Found -
Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4532 file.exe 1264 cethegf -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2596 Process not Found Token: SeCreatePagefilePrivilege 2596 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2540 wrote to memory of 4532 2540 file.exe 82 PID 2540 wrote to memory of 4532 2540 file.exe 82 PID 2540 wrote to memory of 4532 2540 file.exe 82 PID 2540 wrote to memory of 4532 2540 file.exe 82 PID 2540 wrote to memory of 4532 2540 file.exe 82 PID 2540 wrote to memory of 4532 2540 file.exe 82 PID 1444 wrote to memory of 1264 1444 cethegf 88 PID 1444 wrote to memory of 1264 1444 cethegf 88 PID 1444 wrote to memory of 1264 1444 cethegf 88 PID 1444 wrote to memory of 1264 1444 cethegf 88 PID 1444 wrote to memory of 1264 1444 cethegf 88 PID 1444 wrote to memory of 1264 1444 cethegf 88
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2540 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4532
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C:\Users\Admin\AppData\Roaming\cethegfC:\Users\Admin\AppData\Roaming\cethegf1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Users\Admin\AppData\Roaming\cethegfC:\Users\Admin\AppData\Roaming\cethegf2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1264
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
300KB
MD5584b78ef69431b38b3118f8349b2d278
SHA18a89c4ce82cc2f8d0ade808753cd23ab4c0ff2f5
SHA2568e11ab9affe9d5c9adce3088b154d9a4b5edeedf2ea048add9140efdf32ac4e5
SHA512c4d8159df012ca1be198f13d31f5b0d0003af09fd918db9b317c57ab385c3eddbba5faae054a0afbd58964d5ca48a2c1165082509b3129a1d2a268a9193e3420
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Filesize
300KB
MD5584b78ef69431b38b3118f8349b2d278
SHA18a89c4ce82cc2f8d0ade808753cd23ab4c0ff2f5
SHA2568e11ab9affe9d5c9adce3088b154d9a4b5edeedf2ea048add9140efdf32ac4e5
SHA512c4d8159df012ca1be198f13d31f5b0d0003af09fd918db9b317c57ab385c3eddbba5faae054a0afbd58964d5ca48a2c1165082509b3129a1d2a268a9193e3420
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Filesize
300KB
MD5584b78ef69431b38b3118f8349b2d278
SHA18a89c4ce82cc2f8d0ade808753cd23ab4c0ff2f5
SHA2568e11ab9affe9d5c9adce3088b154d9a4b5edeedf2ea048add9140efdf32ac4e5
SHA512c4d8159df012ca1be198f13d31f5b0d0003af09fd918db9b317c57ab385c3eddbba5faae054a0afbd58964d5ca48a2c1165082509b3129a1d2a268a9193e3420