smokeloader | 04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e

General

Target

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
Size

190KB
MD5

b2eb7cc68d576eb297f298c8ae1767a9
SHA1

7e2d24c6b9a93f261965fc33e610da5220d837f4
SHA256

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e
SHA512

0efb89285d6fa1767e4a4e31d5957ea42fb8df0d1255ef7fb3e9da17385476c4abf65a24b243c3ddb8c252a70abcf18f0aaaaab4c21427dd61d2b85575f33fb5

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:

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

description	pid	process	target process
PID 1476 set thread context of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.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:

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

pid	process
916	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
916	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
2476
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2476

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2476
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

pid process

916 04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2476
Token: SeCreatePagefilePrivilege 2476

pid	process
2476

description	pid	process
Token: SeShutdownPrivilege	2476
Token: SeCreatePagefilePrivilege	2476

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

description	pid	process	target process
PID 1476 wrote to memory of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
PID 1476 wrote to memory of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
PID 1476 wrote to memory of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
PID 1476 wrote to memory of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
PID 1476 wrote to memory of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
PID 1476 wrote to memory of 916	1476	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe	04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe

C:\Users\Admin\AppData\Local\Temp\04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
"C:\Users\Admin\AppData\Local\Temp\04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1476

C:\Users\Admin\AppData\Local\Temp\04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe
"C:\Users\Admin\AppData\Local\Temp\04b111587678c11c580961c1b996ec0c881af47f3b919b69f5f6e5852775e44e.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:916

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe c2d35477affe10646d6516c910480f70 /QYSuskn10Oy+CAu0xFtzg.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1108

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:972

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/916-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/916-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1476-130-0x00000000005C0000-0x00000000005E8000-memory.dmp

Filesize
160KB

Download
memory/1476-131-0x0000000000500000-0x0000000000509000-memory.dmp

Filesize
36KB

Download
memory/2476-134-0x0000000000F30000-0x0000000000F46000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads