Analysis
- max time kernel
41s - max time network
154s - platform
windows7_x64 - resource
win7v20210408 - submitted
30/08/2021, 03:32
Static task
static1
Behavioral task
behavioral1
Sample
89DAC1423E1281902DFA3501FED124B1.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
89DAC1423E1281902DFA3501FED124B1.exe
Resource
win10v20210408
General
- Target 89DAC1423E1281902DFA3501FED124B1.exe
- Size 2.7MB
- Sample210830-e3plsfvk5a
- SHA256 4bb9bb8442b8bb68a5ebffb308c5d2f2212fa33b04a0f4de87dbf7ca1487dc1b
- MD5 89dac1423e1281902dfa3501fed124b1
- SHA1 21e5ec36467c2c2e15f4e699f28d84d629fcd077
- SHA512 1ba1b83fadc69daf9a5c2dd9ae1e0d9f089d5ee3a917eacd77f2f9dbf0da02465b5c0df7bb45332e32062566b8c7ae6142f0779ac91f25280d5d03ff44e5b2d0
- MD5 SHA1 SHA512
Malware Config
Extracted
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smokeloader
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2020
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http://varmisende.com/upload/
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http://fernandomayol.com/upload/
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http://nextlytm.com/upload/
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http://people4jan.com/upload/
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http://asfaltwerk.com/upload/
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1260 1692 rundll32.exe 56 - SmokeLoader
Modular backdoor trojan in use since 2014.
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resource yara_rule behavioral1/files/0x00030000000130ce-79.dat aspack_v212_v242 behavioral1/files/0x00030000000130ce-78.dat aspack_v212_v242 behavioral1/files/0x00030000000130cf-77.dat aspack_v212_v242 behavioral1/files/0x00030000000130cf-76.dat aspack_v212_v242 behavioral1/files/0x00030000000130d1-83.dat aspack_v212_v242 behavioral1/files/0x00030000000130d1-82.dat aspack_v212_v242 - Downloads MZ/PE file
- Executes dropped EXE 13 IoCs
pid Process 1928 setup_installer.exe 1720 setup_install.exe 1564 Fri02024b3d1237621.exe 576 LzmwAqmV.exe 1008 Fri024dbf9c992.exe 908 Fri026b43c7db79.exe 1824 Fri020e07c2f8aa8dd.exe 1656 Fri02b3cba8e5ea.exe 984 Fri023db71e8e.exe 520 Fri024dbf9c992.tmp 1700 Fri020e07c2f8aa8dd.exe 1652 Fri02fc24d8801.exe 576 LzmwAqmV.exe - Loads dropped DLL 40 IoCs
pid Process 736 89DAC1423E1281902DFA3501FED124B1.exe 1928 setup_installer.exe 1928 setup_installer.exe 1928 setup_installer.exe 1928 setup_installer.exe 1928 setup_installer.exe 1928 setup_installer.exe 1720 setup_install.exe 1720 setup_install.exe 1720 setup_install.exe 1720 setup_install.exe 1720 setup_install.exe 1720 setup_install.exe 1720 setup_install.exe 1720 setup_install.exe 568 cmd.exe 1256 cmd.exe 1256 cmd.exe 564 cmd.exe 856 cmd.exe 1564 Fri02024b3d1237621.exe 1564 Fri02024b3d1237621.exe 1356 cmd.exe 1356 cmd.exe 576 LzmwAqmV.exe 576 LzmwAqmV.exe 1008 Fri024dbf9c992.exe 1008 Fri024dbf9c992.exe 1640 cmd.exe 1656 Fri02b3cba8e5ea.exe 1656 Fri02b3cba8e5ea.exe 1008 Fri024dbf9c992.exe 576 LzmwAqmV.exe 520 Fri024dbf9c992.tmp 520 Fri024dbf9c992.tmp 520 Fri024dbf9c992.tmp 1652 Fri02fc24d8801.exe 1652 Fri02fc24d8801.exe 576 LzmwAqmV.exe 576 LzmwAqmV.exe - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 25 ipinfo.io 26 ipinfo.io 118 ip-api.com - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 Fri02b3cba8e5ea.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI Fri02b3cba8e5ea.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI Fri02b3cba8e5ea.exe - Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 11 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious behavior: EnumeratesProcesses 55 IoCs
pid Process 1656 Fri02b3cba8e5ea.exe 1656 Fri02b3cba8e5ea.exe 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found 1204 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1656 Fri02b3cba8e5ea.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 984 Fri023db71e8e.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 736 wrote to memory of 1928 736 89DAC1423E1281902DFA3501FED124B1.exe 26 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1928 wrote to memory of 1720 1928 setup_installer.exe 27 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1128 1720 setup_install.exe 29 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1256 1720 setup_install.exe 31 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1356 1720 setup_install.exe 30 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1264 1720 setup_install.exe 54 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 1200 1720 setup_install.exe 32 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 856 1720 setup_install.exe 53 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 568 1720 setup_install.exe 33 PID 1720 wrote to memory of 564 1720 setup_install.exe 52
Processes
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C:\Users\Admin\AppData\Local\Temp\89DAC1423E1281902DFA3501FED124B1.exe"C:\Users\Admin\AppData\Local\Temp\89DAC1423E1281902DFA3501FED124B1.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:736 -
C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1928 -
C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\setup_install.exe"C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\setup_install.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp"4⤵PID:1128
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri02b3cba8e5ea.exe4⤵
- Loads dropped DLL
PID:1356 -
C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri02b3cba8e5ea.exeFri02b3cba8e5ea.exe5⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1656
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri02fc24d8801.exe4⤵
- Loads dropped DLL
PID:1256 -
C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri02fc24d8801.exeFri02fc24d8801.exe5⤵PID:576
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C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri02fc24d8801.exe"C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri02fc24d8801.exe" -a6⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1652
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri0223b8b387f9569.exe4⤵PID:1200
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri02024b3d1237621.exe4⤵
- Loads dropped DLL
PID:568 -
C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri02024b3d1237621.exeFri02024b3d1237621.exe5⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1564 -
C:\Users\Admin\Documents\mh70YlKhKVKvEO84v5VJqBbB.exe"C:\Users\Admin\Documents\mh70YlKhKVKvEO84v5VJqBbB.exe"6⤵PID:2264
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C:\Users\Admin\Documents\4evzyHiMLV1C1_2LYzh8G1iM.exe"C:\Users\Admin\Documents\4evzyHiMLV1C1_2LYzh8G1iM.exe"6⤵PID:2276
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C:\Users\Admin\Documents\3ZT5y3cCTWLpmKemPffW1hWc.exe"C:\Users\Admin\Documents\3ZT5y3cCTWLpmKemPffW1hWc.exe"6⤵PID:2320
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C:\Users\Admin\Documents\2wWGkfpYXaOa5ShoXV2hR6F2.exe"C:\Users\Admin\Documents\2wWGkfpYXaOa5ShoXV2hR6F2.exe"6⤵PID:2308
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C:\Users\Admin\Documents\Ux8HWLr_GwSFqF3MhvlNRviF.exe"C:\Users\Admin\Documents\Ux8HWLr_GwSFqF3MhvlNRviF.exe"6⤵PID:2504
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C:\Users\Admin\Documents\W6KHGcFpQityc2Q1hbtOUwAA.exe"C:\Users\Admin\Documents\W6KHGcFpQityc2Q1hbtOUwAA.exe"6⤵PID:2492
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C:\Users\Admin\Documents\xKRHuSfNK6qtilT8Tgpb7zz6.exe"C:\Users\Admin\Documents\xKRHuSfNK6qtilT8Tgpb7zz6.exe"6⤵PID:2480
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C:\Users\Admin\Documents\4HO8cRZpT2dKflYKpt8PJozo.exe"C:\Users\Admin\Documents\4HO8cRZpT2dKflYKpt8PJozo.exe"6⤵PID:2468
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C:\Users\Admin\Documents\QSkSs3aDK3dNd3vxNDg6UscL.exe"C:\Users\Admin\Documents\QSkSs3aDK3dNd3vxNDg6UscL.exe"6⤵PID:2456
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C:\Users\Admin\Documents\zBbV3gfjgh3f54gGDLvrfrPM.exe"C:\Users\Admin\Documents\zBbV3gfjgh3f54gGDLvrfrPM.exe"6⤵PID:2444
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C:\Users\Admin\Documents\IYkUVrcexiWjcTkIClovEsuG.exe"C:\Users\Admin\Documents\IYkUVrcexiWjcTkIClovEsuG.exe"6⤵PID:2432
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C:\Users\Admin\Documents\DUnn3YJM3oQpjWiq2q74O9Mg.exe"C:\Users\Admin\Documents\DUnn3YJM3oQpjWiq2q74O9Mg.exe"6⤵PID:2420
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C:\Users\Admin\Documents\VePsPViTDS4DnlGhRpMDZyET.exe"C:\Users\Admin\Documents\VePsPViTDS4DnlGhRpMDZyET.exe"6⤵PID:2408
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C:\Users\Admin\Documents\Rgw0VKVgxSyqgzlIJ4a5vvBh.exe"C:\Users\Admin\Documents\Rgw0VKVgxSyqgzlIJ4a5vvBh.exe"6⤵PID:2396
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C:\Users\Admin\Documents\TD3iGjwOiul65A48_X6domPl.exe"C:\Users\Admin\Documents\TD3iGjwOiul65A48_X6domPl.exe"6⤵PID:2380
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C:\Users\Admin\Documents\UVXgcahDd4w8N4ag1O4Rgn1i.exe"C:\Users\Admin\Documents\UVXgcahDd4w8N4ag1O4Rgn1i.exe"6⤵PID:2372
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C:\Users\Admin\Documents\2g81d5EVfMeTO4uqYO_bYPpo.exe"C:\Users\Admin\Documents\2g81d5EVfMeTO4uqYO_bYPpo.exe"6⤵PID:2360
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C:\Users\Admin\Documents\l6JwCDYwPGhhe7QRA76Jcbnc.exe"C:\Users\Admin\Documents\l6JwCDYwPGhhe7QRA76Jcbnc.exe"6⤵PID:2348
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C:\Users\Admin\Documents\AACkBAqjWDpFyBRNwso3ck4w.exe"C:\Users\Admin\Documents\AACkBAqjWDpFyBRNwso3ck4w.exe"6⤵PID:2800
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri02f203cfd9edb7298.exe4⤵PID:1432
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri023db71e8e.exe4⤵
- Loads dropped DLL
PID:1640
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri026b43c7db79.exe4⤵
- Loads dropped DLL
PID:564
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri024dbf9c992.exe4⤵
- Loads dropped DLL
PID:856
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c Fri020e07c2f8aa8dd.exe4⤵PID:1264
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C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri026b43c7db79.exeFri026b43c7db79.exe1⤵
- Executes dropped EXE
PID:908
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C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri024dbf9c992.exeFri024dbf9c992.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1008 -
C:\Users\Admin\AppData\Local\Temp\is-34MSB.tmp\Fri024dbf9c992.tmp"C:\Users\Admin\AppData\Local\Temp\is-34MSB.tmp\Fri024dbf9c992.tmp" /SL5="$5001C,506086,422400,C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri024dbf9c992.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:520 -
C:\Users\Admin\AppData\Local\Temp\is-L1L12.tmp\zab2our.exe"C:\Users\Admin\AppData\Local\Temp\is-L1L12.tmp\zab2our.exe" /S /UID=burnerch23⤵PID:1568
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C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri023db71e8e.exeFri023db71e8e.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:984 -
C:\Users\Admin\AppData\Local\Temp\LzmwAqmV.exe"C:\Users\Admin\AppData\Local\Temp\LzmwAqmV.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:576
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C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri020e07c2f8aa8dd.exe"C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri020e07c2f8aa8dd.exe"1⤵
- Executes dropped EXE
PID:1700
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C:\Users\Admin\AppData\Local\Temp\7zS8877DE84\Fri020e07c2f8aa8dd.exeFri020e07c2f8aa8dd.exe1⤵
- Executes dropped EXE
PID:1824
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C:\Windows\system32\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\sqlite.dll",global1⤵
- Process spawned unexpected child process
PID:1260 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe "C:\Users\Admin\AppData\Local\Temp\sqlite.dll",global2⤵PID:2056
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