smokeloader | 04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187

General

Target

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
Size

318KB
MD5

e7d223d7731460991bf73b725e8c9a25
SHA1

75ef13930b7560ed6f852f5fc498692506d71756
SHA256

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187
SHA512

e2f7ed696c408eebdb9204408df3657c809dbad15ebf1ebef6782fd67115196f070b9a64144e671e0b57a4b3596065f680ebda96b61f24d82a8d4b033fa7d297

Score

10^/10

smokeloader backdoor persistence trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 1 IoCs

Processes:

rjrutci

pid process

4000 rjrutci
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
4000	rjrutci

Suspicious use of SetThreadContext 1 IoCs

Processes:

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

description	pid	process	target process
PID 3576 set thread context of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

pid	process
1320	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
1320	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2308
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

pid process

1320 04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2308
Token: SeCreatePagefilePrivilege 2308

pid	process
2308

description	pid	process
Token: SeShutdownPrivilege	2308
Token: SeCreatePagefilePrivilege	2308

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

description	pid	process	target process
PID 3576 wrote to memory of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
PID 3576 wrote to memory of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
PID 3576 wrote to memory of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
PID 3576 wrote to memory of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
PID 3576 wrote to memory of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
PID 3576 wrote to memory of 1320	3576	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe	04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe

C:\Users\Admin\AppData\Local\Temp\04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
"C:\Users\Admin\AppData\Local\Temp\04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3576

C:\Users\Admin\AppData\Local\Temp\04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe
"C:\Users\Admin\AppData\Local\Temp\04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1320

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 3b64e160319ae2a088d845aa4819d1e6 HFtARDn67Eq0BQlFwRe/tg.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1576

C:\Users\Admin\AppData\Roaming\rjrutci
C:\Users\Admin\AppData\Roaming\rjrutci
1⤵
- Executes dropped EXE
PID:4000

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\rjrutci
MD5
e7d223d7731460991bf73b725e8c9a25

SHA1
75ef13930b7560ed6f852f5fc498692506d71756

SHA256
04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187

SHA512
e2f7ed696c408eebdb9204408df3657c809dbad15ebf1ebef6782fd67115196f070b9a64144e671e0b57a4b3596065f680ebda96b61f24d82a8d4b033fa7d297

Download Submit
C:\Users\Admin\AppData\Roaming\rjrutci
MD5
e7d223d7731460991bf73b725e8c9a25

SHA1
75ef13930b7560ed6f852f5fc498692506d71756

SHA256
04ad6dff980adf0c8eb6570408f677448fb43b65ae7bcbed830e155301201187

SHA512
e2f7ed696c408eebdb9204408df3657c809dbad15ebf1ebef6782fd67115196f070b9a64144e671e0b57a4b3596065f680ebda96b61f24d82a8d4b033fa7d297

Download Submit
memory/1320-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1320-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2308-134-0x0000000000CC0000-0x0000000000CD6000-memory.dmp

Filesize
88KB

Download
memory/3576-131-0x0000000000600000-0x0000000000609000-memory.dmp

Filesize
36KB

Download
memory/3576-130-0x00000000005E0000-0x00000000005E9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads