smokeloader | b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91

General

Target

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
Size

317KB
MD5

c7a68e97288aa2d7e50b181054985aca
SHA1

37448296f49f7401c3ad6e245130264396a92a66
SHA256

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91
SHA512

2aa1ac3f41a75adcc163050ab737e091ea10d53096d1241047ecc5a54df82208bf5307fc7869890c9721d67ba89b45ec676a791f2655844707ba340a1dc96c18

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:

cjstsbwcjstsbw

pid process

3984 cjstsbw
3684 cjstsbw
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
3984	cjstsbw
3684	cjstsbw

Suspicious use of SetThreadContext 2 IoCs

Processes:

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.execjstsbw

description	pid	process	target process
PID 3508 set thread context of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3984 set thread context of 3684	3984	cjstsbw	cjstsbw

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:

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.execjstsbw

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cjstsbw
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cjstsbw
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cjstsbw
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe

pid	process
368	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
368	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
2452
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2452

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2452
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.execjstsbw

pid process

368 b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
3684 cjstsbw

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:

b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.execjstsbw

description	pid	process	target process
PID 3508 wrote to memory of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3508 wrote to memory of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3508 wrote to memory of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3508 wrote to memory of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3508 wrote to memory of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3508 wrote to memory of 368	3508	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe	b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
PID 3984 wrote to memory of 3684	3984	cjstsbw	cjstsbw
PID 3984 wrote to memory of 3684	3984	cjstsbw	cjstsbw
PID 3984 wrote to memory of 3684	3984	cjstsbw	cjstsbw
PID 3984 wrote to memory of 3684	3984	cjstsbw	cjstsbw
PID 3984 wrote to memory of 3684	3984	cjstsbw	cjstsbw
PID 3984 wrote to memory of 3684	3984	cjstsbw	cjstsbw

C:\Users\Admin\AppData\Local\Temp\b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
"C:\Users\Admin\AppData\Local\Temp\b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3508

C:\Users\Admin\AppData\Local\Temp\b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe
"C:\Users\Admin\AppData\Local\Temp\b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:368

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:976

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe d7bf73a50d857ce5ea82dc70f1153474 7csonUkDqECE4mvr7GdPcg.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1344

C:\Users\Admin\AppData\Roaming\cjstsbw
C:\Users\Admin\AppData\Roaming\cjstsbw
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3984

C:\Users\Admin\AppData\Roaming\cjstsbw
C:\Users\Admin\AppData\Roaming\cjstsbw
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\cjstsbw

MD5
c7a68e97288aa2d7e50b181054985aca

SHA1
37448296f49f7401c3ad6e245130264396a92a66

SHA256
b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91

SHA512
2aa1ac3f41a75adcc163050ab737e091ea10d53096d1241047ecc5a54df82208bf5307fc7869890c9721d67ba89b45ec676a791f2655844707ba340a1dc96c18

Download Submit
C:\Users\Admin\AppData\Roaming\cjstsbw

MD5
c7a68e97288aa2d7e50b181054985aca

SHA1
37448296f49f7401c3ad6e245130264396a92a66

SHA256
b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91

SHA512
2aa1ac3f41a75adcc163050ab737e091ea10d53096d1241047ecc5a54df82208bf5307fc7869890c9721d67ba89b45ec676a791f2655844707ba340a1dc96c18

Download Submit
C:\Users\Admin\AppData\Roaming\cjstsbw

MD5
c7a68e97288aa2d7e50b181054985aca

SHA1
37448296f49f7401c3ad6e245130264396a92a66

SHA256
b60ca3e422e351ea4e042c3d8b362098e8384ae25d7527f1e247654464b26e91

SHA512
2aa1ac3f41a75adcc163050ab737e091ea10d53096d1241047ecc5a54df82208bf5307fc7869890c9721d67ba89b45ec676a791f2655844707ba340a1dc96c18

Download Submit
memory/368-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/368-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2452-134-0x0000000000430000-0x0000000000446000-memory.dmp

Filesize
88KB

Download
memory/2452-141-0x0000000000730000-0x0000000000746000-memory.dmp

Filesize
88KB

Download
memory/3508-130-0x0000000000590000-0x0000000000599000-memory.dmp

Filesize
36KB

Download
memory/3508-131-0x00000000006B0000-0x00000000006B9000-memory.dmp

Filesize
36KB

Download
memory/3684-140-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3984-139-0x00000000006A0000-0x00000000006A9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads