smokeloader | 9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28

General

Target

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
Size

190KB
MD5

0dc9184adf3cab7aa0b275f37f4d3152
SHA1

4899831adf6b28eda04e16d5c084445228436b8c
SHA256

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28
SHA512

21f7d9678efeed9af7d3adc558a6842c9c7867cc08205c290327ab4eded792b39ea200e7f39b8735f972ff88f1ba0201cbd1f990bb4d8ae0f4935daca456d1c7

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:

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

description	pid	process	target process
PID 2216 set thread context of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.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:

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

pid	process
1736	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
1736	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2520
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

pid process

1736 9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2520
Token: SeCreatePagefilePrivilege 2520

pid	process
2520

description	pid	process
Token: SeShutdownPrivilege	2520
Token: SeCreatePagefilePrivilege	2520

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

description	pid	process	target process
PID 2216 wrote to memory of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
PID 2216 wrote to memory of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
PID 2216 wrote to memory of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
PID 2216 wrote to memory of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
PID 2216 wrote to memory of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
PID 2216 wrote to memory of 1736	2216	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe	9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe

C:\Users\Admin\AppData\Local\Temp\9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
"C:\Users\Admin\AppData\Local\Temp\9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2216

C:\Users\Admin\AppData\Local\Temp\9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe
"C:\Users\Admin\AppData\Local\Temp\9f19531f8fd468d2e6624a17644bb5508e3522b7454f04cb804c304eff5efd28.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1736

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe e6a339d9ca77dc40c65e765137e39ae0 1OLgPN8KXEeFI7dsC0Hckw.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3208

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/1736-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1736-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2216-130-0x0000000000460000-0x0000000000488000-memory.dmp

Filesize
160KB

Download
memory/2216-131-0x0000000000440000-0x0000000000449000-memory.dmp

Filesize
36KB

Download
memory/2520-134-0x0000000001390000-0x00000000013A6000-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