smokeloader | 929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a

General

Target

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
Size

241KB
MD5

344c34de03ae7b7d62a843cb37dacfd8
SHA1

8cc482646cb15c80dd523e951cbab7db2011a29a
SHA256

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a
SHA512

ac9373a3145799fb83f161512bb7133fb0b6ad4c0ca4c4e6bd7af5f02a777cbb5fd6dd81c2a2480ca2fd32f7a7c6adda647bcf8b063cf955d21b26801b28beb4

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:

cacerahcacerah

pid process

3268 cacerah
3916 cacerah
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
3268	cacerah
3916	cacerah

Suspicious use of SetThreadContext 2 IoCs

Processes:

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.execacerah

description	pid	process	target process
PID 224 set thread context of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 3268 set thread context of 3916	3268	cacerah	cacerah

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:

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.execacerah

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cacerah
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cacerah
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cacerah
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.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\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	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\Disallowed\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\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	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\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	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\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\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\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\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\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\Policies\Microsoft\SystemCertificates\trust\CTLs	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\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe

pid	process
4000	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
4000	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
2412
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2412
2412
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2412
2412
2412
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2412
2412
2412
2412
2412
2412

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2412
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.execacerah

pid process

4000 929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
3916 cacerah

pid	process
2412

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	2412
Token: SeCreatePagefilePrivilege	2412
Token: SeShutdownPrivilege	2412
Token: SeCreatePagefilePrivilege	2412

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.execacerah

description	pid	process	target process
PID 224 wrote to memory of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 224 wrote to memory of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 224 wrote to memory of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 224 wrote to memory of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 224 wrote to memory of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 224 wrote to memory of 4000	224	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe	929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
PID 3268 wrote to memory of 3916	3268	cacerah	cacerah
PID 3268 wrote to memory of 3916	3268	cacerah	cacerah
PID 3268 wrote to memory of 3916	3268	cacerah	cacerah
PID 3268 wrote to memory of 3916	3268	cacerah	cacerah
PID 3268 wrote to memory of 3916	3268	cacerah	cacerah
PID 3268 wrote to memory of 3916	3268	cacerah	cacerah

C:\Users\Admin\AppData\Local\Temp\929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
"C:\Users\Admin\AppData\Local\Temp\929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:224

C:\Users\Admin\AppData\Local\Temp\929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe
"C:\Users\Admin\AppData\Local\Temp\929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4000

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe a47bb1418f4b8bc9c2e7743d8b2ff45a /fHnhOTCGk2FIQ1skF4/hw.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3936

C:\Users\Admin\AppData\Roaming\cacerah
C:\Users\Admin\AppData\Roaming\cacerah
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3268

C:\Users\Admin\AppData\Roaming\cacerah
C:\Users\Admin\AppData\Roaming\cacerah
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3916

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\cacerah
MD5
344c34de03ae7b7d62a843cb37dacfd8

SHA1
8cc482646cb15c80dd523e951cbab7db2011a29a

SHA256
929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a

SHA512
ac9373a3145799fb83f161512bb7133fb0b6ad4c0ca4c4e6bd7af5f02a777cbb5fd6dd81c2a2480ca2fd32f7a7c6adda647bcf8b063cf955d21b26801b28beb4

Download Submit
C:\Users\Admin\AppData\Roaming\cacerah
MD5
344c34de03ae7b7d62a843cb37dacfd8

SHA1
8cc482646cb15c80dd523e951cbab7db2011a29a

SHA256
929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a

SHA512
ac9373a3145799fb83f161512bb7133fb0b6ad4c0ca4c4e6bd7af5f02a777cbb5fd6dd81c2a2480ca2fd32f7a7c6adda647bcf8b063cf955d21b26801b28beb4

Download Submit
C:\Users\Admin\AppData\Roaming\cacerah
MD5
344c34de03ae7b7d62a843cb37dacfd8

SHA1
8cc482646cb15c80dd523e951cbab7db2011a29a

SHA256
929b92219b383421ceb8ed1dca526906e377483572655a854b0b8bc56798688a

SHA512
ac9373a3145799fb83f161512bb7133fb0b6ad4c0ca4c4e6bd7af5f02a777cbb5fd6dd81c2a2480ca2fd32f7a7c6adda647bcf8b063cf955d21b26801b28beb4

Download Submit
memory/224-133-0x0000000000710000-0x0000000000739000-memory.dmp

Filesize
164KB

Download
memory/224-134-0x00000000006E0000-0x00000000006E9000-memory.dmp

Filesize
36KB

Download
memory/2412-137-0x0000000000C30000-0x0000000000C46000-memory.dmp

Filesize
88KB

Download
memory/2412-144-0x0000000000C50000-0x0000000000C66000-memory.dmp

Filesize
88KB

Download
memory/3268-140-0x0000000000540000-0x0000000000568000-memory.dmp

Filesize
160KB

Download
memory/3916-143-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4000-135-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4000-136-0x0000000000400000-0x0000000000409000-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