Analysis
- max time kernel
150s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
02/02/2023, 02:53
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
12 signatures
150 seconds
General
- Target file.exe
- Size 226KB
- Sample230202-ddaxrsed92
- SHA256 bcd64315e8542fe1e90c0f83b7fec86e32073f80c449f61743283bfbc65191ee
- MD5 37188463cfa0c56e5648d24b08a9af3c
- SHA1 02d1670e182d94f31aaccb55c9629d8319926434
- SHA512 66562a7ba062734a4e13a1d16ba3b31370883c80a39dc95701320803bea002ebb742090b4175942fa4897bd1387757db35436a2c6736b1edc915d89a0b5b3380
- SSDEEP 3072:TpkMmyUXRkB2zxLzcWQV58ZWFwth8yiW1PJpas3+ocaSavAQcf:TpGKBsLzc1EWFw/8FW1jYISavAQc
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 1 IoCs
resource yara_rule behavioral2/memory/4032-133-0x0000000002E40000-0x0000000002E49000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 1076 EE1E.exe - Loads dropped DLL 1 IoCs
pid Process 856 rundll32.exe - Program crash 1 IoCs
pid pid_target Process procid_target 3584 1076 WerFault.exe 88 - Checks SCSI registry key(s) 3 TTPs 3 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4032 file.exe 4032 file.exe 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found 2584 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2584 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4032 file.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2584 Process not Found Token: SeCreatePagefilePrivilege 2584 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2584 wrote to memory of 1076 2584 Process not Found 88 PID 2584 wrote to memory of 1076 2584 Process not Found 88 PID 2584 wrote to memory of 1076 2584 Process not Found 88 PID 1076 wrote to memory of 856 1076 EE1E.exe 90 PID 1076 wrote to memory of 856 1076 EE1E.exe 90 PID 1076 wrote to memory of 856 1076 EE1E.exe 90
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4032
-
C:\Users\Admin\AppData\Local\Temp\EE1E.exeC:\Users\Admin\AppData\Local\Temp\EE1E.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Rqdarrhtrsoihy.dll,start2⤵
- Loads dropped DLL
PID:856
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1076 -s 4002⤵
- Program crash
PID:3584
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1076 -ip 10761⤵PID:1424
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\EE1E.exe
- Size 3.2MB
- SHA256 8143388d5e63f3e2b3927c8819e9164fbc355f9f27da10f88ec1b6e12709cf9c
- MD5 e2aafe982145ec8ac01deb5c8da2b30c
- SHA1 f9aa9f29466dd038503ab66896148024d05e2b64
- SHA512 48661cfecb2854d6d426975abce175d599a8272b513611bb8388f51252b56e325666835d7f8b102d596dacd66c97c037ada52c2826bf944466d21b4eae05a97f
- SSDEEP 98304:gSW4Sc3malmDK7rq6EgizuSzfnB9vvyT5:gSjZ3malSKyeizuynz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\EE1E.exe
- Size 3.2MB
- SHA256 8143388d5e63f3e2b3927c8819e9164fbc355f9f27da10f88ec1b6e12709cf9c
- MD5 e2aafe982145ec8ac01deb5c8da2b30c
- SHA1 f9aa9f29466dd038503ab66896148024d05e2b64
- SHA512 48661cfecb2854d6d426975abce175d599a8272b513611bb8388f51252b56e325666835d7f8b102d596dacd66c97c037ada52c2826bf944466d21b4eae05a97f
- SSDEEP 98304:gSW4Sc3malmDK7rq6EgizuSzfnB9vvyT5:gSjZ3malSKyeizuynz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Rqdarrhtrsoihy.dll
- Size 4.3MB
- SHA256 a4a63f7b2798cf2cf652b7e2b3cdfff2311663663299012dd3d2d4f7842a4e09
- MD5 2cb62e9de9cfe1a31e99bef9b6e61935
- SHA1 8cff9c4dddae2eeb67a6076f11787d8032b9ff79
- SHA512 3b280dc50d50cc252853822c76bcca9689d44e8f207655c0cada0401d2b66d23161b4fecf7c2677c5b1973b63647fd7bb2d8a7a88a866875f1d3619ab5fb7469
- SSDEEP 98304:4NuEaurDxPyZQ9DMgL7S6Ia2vjvcZ5XF2gu0qC4:FExXxPyZwDMgL7S6Ia2vD2512g6v
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\Rqdarrhtrsoihy.dll
- Size 4.3MB
- SHA256 a4a63f7b2798cf2cf652b7e2b3cdfff2311663663299012dd3d2d4f7842a4e09
- MD5 2cb62e9de9cfe1a31e99bef9b6e61935
- SHA1 8cff9c4dddae2eeb67a6076f11787d8032b9ff79
- SHA512 3b280dc50d50cc252853822c76bcca9689d44e8f207655c0cada0401d2b66d23161b4fecf7c2677c5b1973b63647fd7bb2d8a7a88a866875f1d3619ab5fb7469
- SSDEEP 98304:4NuEaurDxPyZQ9DMgL7S6Ia2vjvcZ5XF2gu0qC4:FExXxPyZwDMgL7S6Ia2vD2512g6v
- MD5 SHA1 SHA512 SSDEEP