smokeloader | 917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf

General

Target

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
Size

189KB
MD5

874452dbe27bfca41ffd22ca8ddc1c4e
SHA1

3840a51c89928deaec77100be44bd15e788a0a68
SHA256

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf
SHA512

a8c50cd254ac0fade53c54ce2853ab4504567d3d14e08fb9c68ebeec1defa0ae65e7aa82436334277aa49e2c1c133407543d9b873a84359fb6bca6aa2226c8b3

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:

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

description	pid	process	target process
PID 4056 set thread context of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.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:

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

pid	process
1764	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
1764	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
2488
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2488
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

pid process

1764 917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2488
Token: SeCreatePagefilePrivilege 2488

pid	process
2488

description	pid	process
Token: SeShutdownPrivilege	2488
Token: SeCreatePagefilePrivilege	2488

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

description	pid	process	target process
PID 4056 wrote to memory of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
PID 4056 wrote to memory of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
PID 4056 wrote to memory of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
PID 4056 wrote to memory of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
PID 4056 wrote to memory of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
PID 4056 wrote to memory of 1764	4056	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe	917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe

C:\Users\Admin\AppData\Local\Temp\917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
"C:\Users\Admin\AppData\Local\Temp\917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4056

C:\Users\Admin\AppData\Local\Temp\917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe
"C:\Users\Admin\AppData\Local\Temp\917d9b49f0f74337ef54a15a640ba5bdd996d4ce6cc1ab9520b96eeb940eaebf.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1764

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 930bec5fd53a0eb628e9835539fda750 GR0me9U24E+ri1QlgabnZA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:2980

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/1764-131-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1764-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2488-134-0x0000000002720000-0x0000000002736000-memory.dmp

Filesize
88KB

Download
memory/4056-130-0x0000000000570000-0x0000000000598000-memory.dmp

Filesize
160KB

Download
memory/4056-132-0x0000000002170000-0x0000000002179000-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