Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
11-04-2023 09:30
Static task
static1
Behavioral task
behavioral1
Sample
d21540fcd4d61c4dcbcd304f30584dd0.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
d21540fcd4d61c4dcbcd304f30584dd0.exe
Resource
win10v2004-20230220-en
General
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Target
d21540fcd4d61c4dcbcd304f30584dd0.exe
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Size
198KB
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MD5
d21540fcd4d61c4dcbcd304f30584dd0
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SHA1
0b3027d5558d2146366e2b612df9cf2d56fc6849
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SHA256
2d9810de8d2043c225d93e85872d73ebbad7084a313d5b0f756354c300cef480
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SHA512
44df514a3d1ddd5f9461881324228764795a8516e3c139ecce900eeaf304cde0c6c696e95d5bb6f84563b9fa4a49eb4842e34398e6ee63a372e1e4cdb4a4c15b
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SSDEEP
3072:zWcTuAyOP1mMqYf7b5SnwFHEcvGdg/fRNPmd+v//eM:CyFPa9nwFEcO+xvn
Malware Config
Extracted
smokeloader
sprg
Extracted
smokeloader
2022
http://hoh0aeghwugh2gie.com/
http://hie7doodohpae4na.com/
http://aek0aicifaloh1yo.com/
http://yic0oosaeiy7ahng.com/
http://wa5zu7sekai8xeih.com/
Extracted
vidar
3.4
e749025c61b2caca10aa829a9e1a65a1
https://steamcommunity.com/profiles/76561199494593681
https://t.me/auftriebs
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profile_id_v2
e749025c61b2caca10aa829a9e1a65a1
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user_agent
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0
Extracted
laplas
http://185.106.92.74
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api_key
bc2dceabe69fa26dbf4dd8295d65e03e1990633a88c1c8410825c9266b239396
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation 1146.exe Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation 86664825538934173008.exe -
Executes dropped EXE 4 IoCs
pid Process 1724 1146.exe 2612 86664825538934173008.exe 4172 75728907267718212849.exe 1536 svcservice.exe -
Loads dropped DLL 2 IoCs
pid Process 1724 1146.exe 1724 1146.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral2/files/0x0006000000022fa2-301.dat upx behavioral2/files/0x0006000000022fa2-303.dat upx behavioral2/files/0x0006000000022fa2-304.dat upx behavioral2/memory/4172-307-0x0000000000630000-0x0000000001493000-memory.dmp upx behavioral2/memory/4172-312-0x0000000000630000-0x0000000001493000-memory.dmp upx -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\telemetry = "C:\\Users\\Admin\\AppData\\Roaming\\telemetry\\svcservice.exe" 86664825538934173008.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 2612 86664825538934173008.exe 2612 86664825538934173008.exe 1536 svcservice.exe 1536 svcservice.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 792 1724 WerFault.exe 91 -
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 d21540fcd4d61c4dcbcd304f30584dd0.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d21540fcd4d61c4dcbcd304f30584dd0.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI d21540fcd4d61c4dcbcd304f30584dd0.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 1146.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 1146.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2936 timeout.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4288 d21540fcd4d61c4dcbcd304f30584dd0.exe 4288 d21540fcd4d61c4dcbcd304f30584dd0.exe 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3184 Process not Found -
Suspicious behavior: MapViewOfSection 19 IoCs
pid Process 4288 d21540fcd4d61c4dcbcd304f30584dd0.exe 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found 3184 Process not Found -
Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found Token: SeShutdownPrivilege 3184 Process not Found Token: SeCreatePagefilePrivilege 3184 Process not Found -
Suspicious use of WriteProcessMemory 54 IoCs
description pid Process procid_target PID 3184 wrote to memory of 1724 3184 Process not Found 91 PID 3184 wrote to memory of 1724 3184 Process not Found 91 PID 3184 wrote to memory of 1724 3184 Process not Found 91 PID 3184 wrote to memory of 1860 3184 Process not Found 92 PID 3184 wrote to memory of 1860 3184 Process not Found 92 PID 3184 wrote to memory of 1860 3184 Process not Found 92 PID 3184 wrote to memory of 1860 3184 Process not Found 92 PID 3184 wrote to memory of 4156 3184 Process not Found 93 PID 3184 wrote to memory of 4156 3184 Process not Found 93 PID 3184 wrote to memory of 4156 3184 Process not Found 93 PID 3184 wrote to memory of 3632 3184 Process not Found 95 PID 3184 wrote to memory of 3632 3184 Process not Found 95 PID 3184 wrote to memory of 3632 3184 Process not Found 95 PID 3184 wrote to memory of 3632 3184 Process not Found 95 PID 3184 wrote to memory of 2184 3184 Process not Found 96 PID 3184 wrote to memory of 2184 3184 Process not Found 96 PID 3184 wrote to memory of 2184 3184 Process not Found 96 PID 3184 wrote to memory of 1204 3184 Process not Found 97 PID 3184 wrote to memory of 1204 3184 Process not Found 97 PID 3184 wrote to memory of 1204 3184 Process not Found 97 PID 3184 wrote to memory of 1204 3184 Process not Found 97 PID 3184 wrote to memory of 1636 3184 Process not Found 98 PID 3184 wrote to memory of 1636 3184 Process not Found 98 PID 3184 wrote to memory of 1636 3184 Process not Found 98 PID 3184 wrote to memory of 1636 3184 Process not Found 98 PID 3184 wrote to memory of 3428 3184 Process not Found 99 PID 3184 wrote to memory of 3428 3184 Process not Found 99 PID 3184 wrote to memory of 3428 3184 Process not Found 99 PID 3184 wrote to memory of 3428 3184 Process not Found 99 PID 3184 wrote to memory of 3700 3184 Process not Found 100 PID 3184 wrote to memory of 3700 3184 Process not Found 100 PID 3184 wrote to memory of 3700 3184 Process not Found 100 PID 3184 wrote to memory of 1052 3184 Process not Found 101 PID 3184 wrote to memory of 1052 3184 Process not Found 101 PID 3184 wrote to memory of 1052 3184 Process not Found 101 PID 3184 wrote to memory of 1052 3184 Process not Found 101 PID 1724 wrote to memory of 2612 1724 1146.exe 102 PID 1724 wrote to memory of 2612 1724 1146.exe 102 PID 1724 wrote to memory of 2612 1724 1146.exe 102 PID 1724 wrote to memory of 4172 1724 1146.exe 104 PID 1724 wrote to memory of 4172 1724 1146.exe 104 PID 4172 wrote to memory of 1316 4172 75728907267718212849.exe 105 PID 4172 wrote to memory of 1316 4172 75728907267718212849.exe 105 PID 1724 wrote to memory of 2608 1724 1146.exe 107 PID 1724 wrote to memory of 2608 1724 1146.exe 107 PID 1724 wrote to memory of 2608 1724 1146.exe 107 PID 1316 wrote to memory of 3216 1316 cmd.exe 110 PID 1316 wrote to memory of 3216 1316 cmd.exe 110 PID 2608 wrote to memory of 2936 2608 cmd.exe 111 PID 2608 wrote to memory of 2936 2608 cmd.exe 111 PID 2608 wrote to memory of 2936 2608 cmd.exe 111 PID 2612 wrote to memory of 1536 2612 86664825538934173008.exe 113 PID 2612 wrote to memory of 1536 2612 86664825538934173008.exe 113 PID 2612 wrote to memory of 1536 2612 86664825538934173008.exe 113 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\d21540fcd4d61c4dcbcd304f30584dd0.exe"C:\Users\Admin\AppData\Local\Temp\d21540fcd4d61c4dcbcd304f30584dd0.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4288
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C:\Users\Admin\AppData\Local\Temp\1146.exeC:\Users\Admin\AppData\Local\Temp\1146.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\ProgramData\86664825538934173008.exe"C:\ProgramData\86664825538934173008.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\Users\Admin\AppData\Roaming\telemetry\svcservice.exe"C:\Users\Admin\AppData\Roaming\telemetry\svcservice.exe"3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1536
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C:\ProgramData\75728907267718212849.exe"C:\ProgramData\75728907267718212849.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4172 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\75728907267718212849.exe3⤵
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 04⤵PID:3216
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1146.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2608 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:2936
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 18842⤵
- Program crash
PID:792
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1860
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:4156
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:3632
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:2184
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1204
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1636
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:3428
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵PID:3700
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵PID:1052
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1724 -ip 17241⤵PID:3936
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
4.3MB
MD5c4ab3149ef02a36d663699a8c541933e
SHA167088f5eff9ec575775b711c9e3650d12d7f4d5c
SHA2560a0fbd6af9e5d110118f02b87f9a92f9f58fb100f6d9883d55a6aae6c548b4ce
SHA51288b10f81b2cd273fefeffb4c2078807e89b4b756d50110b61e9f89092715f29ba8d1803f64bc971c1293dc624b92d0b7f05612ae661dd8d24e47d39047a4b7b4
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Filesize
4.3MB
MD5c4ab3149ef02a36d663699a8c541933e
SHA167088f5eff9ec575775b711c9e3650d12d7f4d5c
SHA2560a0fbd6af9e5d110118f02b87f9a92f9f58fb100f6d9883d55a6aae6c548b4ce
SHA51288b10f81b2cd273fefeffb4c2078807e89b4b756d50110b61e9f89092715f29ba8d1803f64bc971c1293dc624b92d0b7f05612ae661dd8d24e47d39047a4b7b4
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Filesize
4.3MB
MD5c4ab3149ef02a36d663699a8c541933e
SHA167088f5eff9ec575775b711c9e3650d12d7f4d5c
SHA2560a0fbd6af9e5d110118f02b87f9a92f9f58fb100f6d9883d55a6aae6c548b4ce
SHA51288b10f81b2cd273fefeffb4c2078807e89b4b756d50110b61e9f89092715f29ba8d1803f64bc971c1293dc624b92d0b7f05612ae661dd8d24e47d39047a4b7b4
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Filesize
7.2MB
MD5c5e0fb4ecaa8a7481a283099d604f7a0
SHA1df4b0c0cc823da2b0443076650c292b43dd9de33
SHA256c6c03e97c5de0c9eb264e4914d8c7f64d7e3528cc696f613e451a294262f3c42
SHA512375677d0cc802b09c7d1532d162a91a8eec4679f7639ef38dca9a9d3a03e20b3ab54707af7ffb138d00ec93ea4b34b6db0b33f365dc888ff9056c808a239bc57
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Filesize
7.2MB
MD5c5e0fb4ecaa8a7481a283099d604f7a0
SHA1df4b0c0cc823da2b0443076650c292b43dd9de33
SHA256c6c03e97c5de0c9eb264e4914d8c7f64d7e3528cc696f613e451a294262f3c42
SHA512375677d0cc802b09c7d1532d162a91a8eec4679f7639ef38dca9a9d3a03e20b3ab54707af7ffb138d00ec93ea4b34b6db0b33f365dc888ff9056c808a239bc57
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Filesize
7.2MB
MD5c5e0fb4ecaa8a7481a283099d604f7a0
SHA1df4b0c0cc823da2b0443076650c292b43dd9de33
SHA256c6c03e97c5de0c9eb264e4914d8c7f64d7e3528cc696f613e451a294262f3c42
SHA512375677d0cc802b09c7d1532d162a91a8eec4679f7639ef38dca9a9d3a03e20b3ab54707af7ffb138d00ec93ea4b34b6db0b33f365dc888ff9056c808a239bc57
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
308KB
MD50f05baf410acbdb5472a53529bf2000b
SHA1109fe4c8b160e56cbdbcdb226b155013c2050b53
SHA256257f3227f28be3d46cbb43378f0c59bbbff01638b3935c704726ab7384e339cf
SHA512e9a23c9422227b9500392266c4c454f7a800579916e1d530037ac5185e1b5ff80cc035c449dc04e9cd382125ce166cf560adea5525798972143b18beb1b20713
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Filesize
308KB
MD50f05baf410acbdb5472a53529bf2000b
SHA1109fe4c8b160e56cbdbcdb226b155013c2050b53
SHA256257f3227f28be3d46cbb43378f0c59bbbff01638b3935c704726ab7384e339cf
SHA512e9a23c9422227b9500392266c4c454f7a800579916e1d530037ac5185e1b5ff80cc035c449dc04e9cd382125ce166cf560adea5525798972143b18beb1b20713
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Filesize
710.9MB
MD52cf407af3f93a66a7f685ea431228d9b
SHA1178386a925bcca470b74bb0664fa4e7760d26a7b
SHA256ebfb01f85577561d09f5bf1a6a8cad94851667240bffcedc2d697db6cd48ed34
SHA512b99153edd562c78820dba88419479a827129da8b60d50d99e1b6a33a1c1518f1926b63f39dfef944f702c7af8b66ec0476e46701aa0d591894472ce56731ebcb
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Filesize
704.7MB
MD53ad5852a05e617a50c422d5fe75eeefe
SHA106ea550f304484f56562c22de33f3faeefbd88d5
SHA256a48873859d6e4ee28d6669fe88d463d19c390d1c15c77e650fc5063ecfcce2da
SHA51277ba99e11331e95ea342560a65c46e1bc9f4cfa2abfa5b419240d52617e9c9b97e41542439befc7577114846ebe75178960955042c702677cc3cda68454345f2