smokeloader | 91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b

General

Target

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
Size

318KB
MD5

eeeb3c0b0a2873294a977512aa571396
SHA1

2b0e81a78cf5afdd870fe935b0e7a30dd2b3e2ca
SHA256

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b
SHA512

93d96f782c9196d06490891013024e9110af48393915d466fe31e8b5722d86b64abd0c4edae4cb90b0a55286a024bdf92ab85a8ff1c132f19577bc984a2194f3

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:

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

description	pid	process	target process
PID 3740 set thread context of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.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:

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

pid	process
3204	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
3204	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2492
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

pid process

3204 91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2492
Token: SeCreatePagefilePrivilege 2492

pid	process
2492

description	pid	process
Token: SeShutdownPrivilege	2492
Token: SeCreatePagefilePrivilege	2492

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

description	pid	process	target process
PID 3740 wrote to memory of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
PID 3740 wrote to memory of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
PID 3740 wrote to memory of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
PID 3740 wrote to memory of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
PID 3740 wrote to memory of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
PID 3740 wrote to memory of 3204	3740	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe	91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe

C:\Users\Admin\AppData\Local\Temp\91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
"C:\Users\Admin\AppData\Local\Temp\91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3740

C:\Users\Admin\AppData\Local\Temp\91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe
"C:\Users\Admin\AppData\Local\Temp\91ae5ce01ecb645df0b539fc5db5724c32a3ebf6339a8bc1df02deb41e42587b.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3204

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 5dfbd1e0f857fe77020dd2147e779b34 /MdMpPJ1D06TDUBVvcW6ng.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:2208

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/2492-134-0x00000000024F0000-0x0000000002506000-memory.dmp

Filesize
88KB

Download
memory/3204-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3204-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3740-130-0x00000000006F0000-0x00000000006F8000-memory.dmp

Filesize
32KB

Download
memory/3740-131-0x0000000000700000-0x0000000000709000-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