smokeloader | bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676

General

Target

bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
Size

318KB
MD5

9e5b2e4f56f3380389362b790aa17b44
SHA1

7a2f8ee8e21dbf10f5bd84f538a6621dc32f8f84
SHA256

bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676
SHA512

7207936d2e544e94016098a0aa07822c85d555eaea02d774631268c4f6c7a423bc686653e1a1b7d70b6d52bf3b7d1548ccc517dc1d5340b2f7f3b3514def2aa7

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
Executes dropped EXE 2 IoCs

Processes:

iugfbvuiugfbvu

pid process

3684 iugfbvu
2704 iugfbvu
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
3684	iugfbvu
2704	iugfbvu

Suspicious use of SetThreadContext 2 IoCs

Processes:

bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exeiugfbvu

description	pid	process	target process
PID 3500 set thread context of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3684 set thread context of 2704	3684	iugfbvu	iugfbvu

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

iugfbvubd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iugfbvu
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iugfbvu
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	iugfbvu
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe

pid	process
1324	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
1324	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
2452
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2452
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exeiugfbvu

pid process

1324 bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
2704 iugfbvu

pid	process
2452

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	2452
Token: SeCreatePagefilePrivilege	2452
Token: SeShutdownPrivilege	2452
Token: SeCreatePagefilePrivilege	2452

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exeiugfbvu

description	pid	process	target process
PID 3500 wrote to memory of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3500 wrote to memory of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3500 wrote to memory of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3500 wrote to memory of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3500 wrote to memory of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3500 wrote to memory of 1324	3500	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe	bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
PID 3684 wrote to memory of 2704	3684	iugfbvu	iugfbvu
PID 3684 wrote to memory of 2704	3684	iugfbvu	iugfbvu
PID 3684 wrote to memory of 2704	3684	iugfbvu	iugfbvu
PID 3684 wrote to memory of 2704	3684	iugfbvu	iugfbvu
PID 3684 wrote to memory of 2704	3684	iugfbvu	iugfbvu
PID 3684 wrote to memory of 2704	3684	iugfbvu	iugfbvu

C:\Users\Admin\AppData\Local\Temp\bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
"C:\Users\Admin\AppData\Local\Temp\bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3500

C:\Users\Admin\AppData\Local\Temp\bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe
"C:\Users\Admin\AppData\Local\Temp\bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:1708

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe f86e59f2b81a522798e1e68443627023 7csonUkDqECE4mvr7GdPcg.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1932

C:\Users\Admin\AppData\Roaming\iugfbvu
C:\Users\Admin\AppData\Roaming\iugfbvu
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3684

C:\Users\Admin\AppData\Roaming\iugfbvu
C:\Users\Admin\AppData\Roaming\iugfbvu
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2704

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

C:\Users\Admin\AppData\Roaming\iugfbvu
MD5
9e5b2e4f56f3380389362b790aa17b44

SHA1
7a2f8ee8e21dbf10f5bd84f538a6621dc32f8f84

SHA256
bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676

SHA512
7207936d2e544e94016098a0aa07822c85d555eaea02d774631268c4f6c7a423bc686653e1a1b7d70b6d52bf3b7d1548ccc517dc1d5340b2f7f3b3514def2aa7

Download Submit
C:\Users\Admin\AppData\Roaming\iugfbvu
MD5
9e5b2e4f56f3380389362b790aa17b44

SHA1
7a2f8ee8e21dbf10f5bd84f538a6621dc32f8f84

SHA256
bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676

SHA512
7207936d2e544e94016098a0aa07822c85d555eaea02d774631268c4f6c7a423bc686653e1a1b7d70b6d52bf3b7d1548ccc517dc1d5340b2f7f3b3514def2aa7

Download Submit
C:\Users\Admin\AppData\Roaming\iugfbvu
MD5
9e5b2e4f56f3380389362b790aa17b44

SHA1
7a2f8ee8e21dbf10f5bd84f538a6621dc32f8f84

SHA256
bd47a6c86b0088b8524db00c5c8e6ca98f9f798cf15ae447aeb789e881663676

SHA512
7207936d2e544e94016098a0aa07822c85d555eaea02d774631268c4f6c7a423bc686653e1a1b7d70b6d52bf3b7d1548ccc517dc1d5340b2f7f3b3514def2aa7

Download Submit
memory/1324-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1324-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2452-134-0x0000000000410000-0x0000000000426000-memory.dmp

Filesize
88KB

Download
memory/2452-140-0x0000000000440000-0x0000000000456000-memory.dmp

Filesize
88KB

Download
memory/2704-139-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3500-131-0x00000000005B0000-0x00000000005B9000-memory.dmp

Filesize
36KB

Download
memory/3500-130-0x00000000005A0000-0x00000000005A9000-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