smokeloader | f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033

General

Target

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
Size

317KB
MD5

0a77510939d386c78d044d8f23648535
SHA1

fddfa3685771667ba3d00240aa319a9cd93154b6
SHA256

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033
SHA512

a4296ea561359e5cd7faa00cfc0cbb8f7ca448ad9c0753c6245052367401605a1c5de0a76208059a6368b4cebee11118482bd913339731dfdbb455af4b9e3f94

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:

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

description	pid	process	target process
PID 3960 set thread context of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.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:

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

pid	process
1360	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
1360	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2384
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

pid process

1360 f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

pid	process
2384

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

description	pid	process	target process
PID 3960 wrote to memory of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
PID 3960 wrote to memory of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
PID 3960 wrote to memory of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
PID 3960 wrote to memory of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
PID 3960 wrote to memory of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
PID 3960 wrote to memory of 1360	3960	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe	f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe

C:\Users\Admin\AppData\Local\Temp\f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
"C:\Users\Admin\AppData\Local\Temp\f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3960

C:\Users\Admin\AppData\Local\Temp\f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe
"C:\Users\Admin\AppData\Local\Temp\f91112004eb1e10814d6d9b90c65d6189e299b389da3277df7f1fdf4bcdfe033.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1360

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 405ad5e2e5359cd2e0625540686cf2a9 lQrIatP0sESqbu2kA5qkfA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:2140

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k wusvcs -p
1⤵
PID:1048

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/1360-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1360-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2384-134-0x00000000007E0000-0x00000000007F6000-memory.dmp

Filesize
88KB

Download
memory/3960-130-0x00000000008A0000-0x00000000008A8000-memory.dmp

Filesize
32KB

Download
memory/3960-131-0x00000000008B0000-0x00000000008B9000-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