smokeloader | 877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479

General

Target

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
Size

191KB
MD5

8c1cb76818d910752b0fdae41fc7be4f
SHA1

618edc41b68ddc9849afb0cc0079ab4a7504306a
SHA256

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479
SHA512

a53cf9e20c87fc445cb294e3865e76e1bc12f48e7e67ccc3a426be736b2fbd405507a1c9a49d1202df9b0b6c94335b56845b4bc8803de71ffadeb2b9f55f0359

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:

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

description	pid	process	target process
PID 4004 set thread context of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.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:

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

pid	process
3252	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
3252	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
2520
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2520
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

pid process

3252 877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2520
Token: SeCreatePagefilePrivilege 2520
Suspicious use of UnmapMainImage 1 IoCs

Processes:

pid process

2520

pid	process
2520

description	pid	process
Token: SeShutdownPrivilege	2520
Token: SeCreatePagefilePrivilege	2520

pid	process
2520

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

description	pid	process	target process
PID 4004 wrote to memory of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
PID 4004 wrote to memory of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
PID 4004 wrote to memory of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
PID 4004 wrote to memory of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
PID 4004 wrote to memory of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
PID 4004 wrote to memory of 3252	4004	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe	877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe

C:\Users\Admin\AppData\Local\Temp\877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
"C:\Users\Admin\AppData\Local\Temp\877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4004

C:\Users\Admin\AppData\Local\Temp\877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe
"C:\Users\Admin\AppData\Local\Temp\877dc1247e7be963bf69476f61887ef11afa571a2b0fb4b40d9c32b344576479.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3252

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 46e698c5335b95104d200dbd9df39afb FwnwuYMUn0mIfdMxbZNFew.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1004

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/2520-134-0x00000000007D0000-0x00000000007E6000-memory.dmp

Filesize
88KB

Download
memory/3252-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3252-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4004-130-0x00000000006D0000-0x00000000006F9000-memory.dmp

Filesize
164KB

Download
memory/4004-131-0x0000000002170000-0x0000000002179000-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