smokeloader | d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c

General

Target

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
Size

356KB
MD5

284929a616faaa9f9e4ffc327c3e53c6
SHA1

82e2063ad8132d5740581d30776098116c2d6393
SHA256

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c
SHA512

e7da1b0a20fb201ff1d53b35f597e095c32b38d42fcf9059ae734c7333e7c2edbf8e6af30e4ffc15efc6aeef2d4232a910c9617eecc88534232db3f0ee45b0b7

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:

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe

description	pid	process	target process
PID 3752 set thread context of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.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:

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.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\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	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\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	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	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	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\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\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\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\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\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe

Modifies registry class 2 IoCs

Processes:

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\
Key created	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe

pid	process
3352	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
3352	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2412
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe

pid process

3352 d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2412
Token: SeCreatePagefilePrivilege 2412

pid	process
2412

description	pid	process
Token: SeShutdownPrivilege	2412
Token: SeCreatePagefilePrivilege	2412

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe

description	pid	process	target process
PID 3752 wrote to memory of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
PID 3752 wrote to memory of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
PID 3752 wrote to memory of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
PID 3752 wrote to memory of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
PID 3752 wrote to memory of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
PID 3752 wrote to memory of 3352	3752	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe	d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe

C:\Users\Admin\AppData\Local\Temp\d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
"C:\Users\Admin\AppData\Local\Temp\d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3752

C:\Users\Admin\AppData\Local\Temp\d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe
"C:\Users\Admin\AppData\Local\Temp\d8052f56f2e9f3acae5f32a65f1b4c39dfbb87d39219ca52f6dd492ff1affa5c.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3352

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 9f2d949d107434543486b981de1ba9d5 Lvb1gL9tqkCSSd897/dWMA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3048

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

Replay Monitor

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Downloads

memory/2412-137-0x0000000000C30000-0x0000000000C46000-memory.dmp

Filesize
88KB

Download
memory/3352-135-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3352-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3752-133-0x0000000000550000-0x000000000057B000-memory.dmp

Filesize
172KB

Download
memory/3752-134-0x0000000000500000-0x0000000000509000-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