smokeloader | fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413

General

Target

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
Size

241KB
MD5

bc95ec1ba3f071be23627c206d4f27b0
SHA1

c4ca4784189cd2e98be66b6822111151d3de5de2
SHA256

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413
SHA512

19873828c684f8217e9b0b77ae41cfcab9924b4102bc8f50999c8c8b8a8e4130525d0a535b40b209423da48719bf91ed42d7909cd1732044bfc62ab5c726d7e9

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
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Suspicious use of SetThreadContext 1 IoCs

Processes:

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

description	pid	process	target process
PID 2852 set thread context of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.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:

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

pid	process
2108	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
2108	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
2540
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2540

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2540
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

pid process

2108 fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

pid	process
2540

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

description	pid	process	target process
PID 2852 wrote to memory of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
PID 2852 wrote to memory of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
PID 2852 wrote to memory of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
PID 2852 wrote to memory of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
PID 2852 wrote to memory of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
PID 2852 wrote to memory of 2108	2852	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe	fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe

C:\Users\Admin\AppData\Local\Temp\fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
"C:\Users\Admin\AppData\Local\Temp\fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2852

C:\Users\Admin\AppData\Local\Temp\fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe
"C:\Users\Admin\AppData\Local\Temp\fd7c66a318652505d0d786f1ab95239ad0f98c87872971b8e842080f6dda9413.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2108

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 7b62f6420935fb5dd31a74723560b45c YorinnXjoUWhdGTRBe0mRA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3988

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:2948

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

memory/2108-131-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2108-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2540-134-0x0000000001340000-0x0000000001356000-memory.dmp

Filesize
88KB

Download
memory/2852-130-0x00000000005B0000-0x00000000005D8000-memory.dmp

Filesize
160KB

Download
memory/2852-132-0x00000000005A0000-0x00000000005A9000-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