smokeloader | a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658

General

Target

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
Size

241KB
MD5

8ae45803f89e8d534484789e4f7d9e12
SHA1

1cb1dd51daf841695a4840072c8c8d62c2f21ee3
SHA256

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658
SHA512

61a3db5a8f20675768fdd37a4f3ebb7ef9287fd5bda2c9789f99ef3f8c032feafc86bac4f009ab1cafacbdc686b673e3f9c814b6d30486e56adb7f1233d777bb

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:

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

description	pid	process	target process
PID 3188 set thread context of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.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:

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

pid	process
552	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
552	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
2424
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2424
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

pid process

552 a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2424
Token: SeCreatePagefilePrivilege 2424

pid	process
2424

description	pid	process
Token: SeShutdownPrivilege	2424
Token: SeCreatePagefilePrivilege	2424

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

description	pid	process	target process
PID 3188 wrote to memory of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
PID 3188 wrote to memory of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
PID 3188 wrote to memory of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
PID 3188 wrote to memory of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
PID 3188 wrote to memory of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
PID 3188 wrote to memory of 552	3188	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe	a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe

C:\Users\Admin\AppData\Local\Temp\a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
"C:\Users\Admin\AppData\Local\Temp\a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3188

C:\Users\Admin\AppData\Local\Temp\a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe
"C:\Users\Admin\AppData\Local\Temp\a74cc0ccf2620478a1e414c16ea4228b065d644464ebe1efb2634e2244f3f658.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:552

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 93f435baa524f729c207a2b342d87ccd YgVdqpoXwUiqHaJ9UTdVaQ.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:4052

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/552-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/552-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2424-134-0x0000000000B60000-0x0000000000B76000-memory.dmp

Filesize
88KB

Download
memory/3188-130-0x0000000000630000-0x0000000000659000-memory.dmp

Filesize
164KB

Download
memory/3188-131-0x00000000005E0000-0x00000000005E9000-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