smokeloader | 104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b

General

Target

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
Size

333KB
MD5

8a22d0c2ca9db6d58495bb87df521949
SHA1

294e946b60efc3ed1283e6aa576906e833abc0c3
SHA256

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b
SHA512

cccc593cbb92f3cd1055825d50012368f406bfeb19d9a4ce566999ef09518d728adfb0aed12047e3b376a47058d9afdea126a09fcc70ab022ed50c7e3f6518c6

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:

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

description	pid	process	target process
PID 3116 set thread context of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.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:

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

pid	process
1412	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
1412	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
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2508

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2508
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

pid process

1412 104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

pid	process
2508

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

description	pid	process	target process
PID 3116 wrote to memory of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
PID 3116 wrote to memory of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
PID 3116 wrote to memory of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
PID 3116 wrote to memory of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
PID 3116 wrote to memory of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
PID 3116 wrote to memory of 1412	3116	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe	104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe

C:\Users\Admin\AppData\Local\Temp\104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
"C:\Users\Admin\AppData\Local\Temp\104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3116

C:\Users\Admin\AppData\Local\Temp\104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe
"C:\Users\Admin\AppData\Local\Temp\104f89105ef08c142b992dcc9915d4e0284529bfb6f07f522bd0d805800e690b.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1412

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 0cc2592c5a73945523c77e289ded2e56 O/t/vqmvr0W6dqZWOuA7UQ.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1540

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k wusvcs -p
1⤵
PID:2700

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/1412-131-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1412-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2508-134-0x0000000000C30000-0x0000000000C46000-memory.dmp

Filesize
88KB

Download
memory/3116-130-0x0000000000630000-0x000000000065A000-memory.dmp

Filesize
168KB

Download
memory/3116-132-0x0000000000610000-0x0000000000619000-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