smokeloader | 63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086

General

Target

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
Size

351KB
MD5

79cd578c6198391d8ce8b1ccc1b301d1
SHA1

adc7a417da2c9c01c4664c1b740c317f16dcef5c
SHA256

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086
SHA512

7d497694a48182689c78abdbf8bbc13e1937900a4728ce7c02e06033d3b1923337bec3def940dfc3896746fab59b5b00a6e2e8de0126eff19d490290d3ee31e4

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:

dgffwcjdgffwcj

pid process

3976 dgffwcj
3996 dgffwcj
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
3976	dgffwcj
3996	dgffwcj

Suspicious use of SetThreadContext 2 IoCs

Processes:

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exedgffwcj

description	pid	process	target process
PID 2236 set thread context of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 3976 set thread context of 3996	3976	dgffwcj	dgffwcj

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:

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exedgffwcj

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	dgffwcj
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	dgffwcj
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	dgffwcj

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe

pid	process
3336	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
3336	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
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2520
2520

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2520
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exedgffwcj

pid process

3336 63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
3996 dgffwcj

pid	process
2520

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	2520
Token: SeCreatePagefilePrivilege	2520
Token: SeShutdownPrivilege	2520
Token: SeCreatePagefilePrivilege	2520

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exedgffwcj

description	pid	process	target process
PID 2236 wrote to memory of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 2236 wrote to memory of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 2236 wrote to memory of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 2236 wrote to memory of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 2236 wrote to memory of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 2236 wrote to memory of 3336	2236	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe	63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
PID 3976 wrote to memory of 3996	3976	dgffwcj	dgffwcj
PID 3976 wrote to memory of 3996	3976	dgffwcj	dgffwcj
PID 3976 wrote to memory of 3996	3976	dgffwcj	dgffwcj
PID 3976 wrote to memory of 3996	3976	dgffwcj	dgffwcj
PID 3976 wrote to memory of 3996	3976	dgffwcj	dgffwcj
PID 3976 wrote to memory of 3996	3976	dgffwcj	dgffwcj

C:\Users\Admin\AppData\Local\Temp\63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
"C:\Users\Admin\AppData\Local\Temp\63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2236

C:\Users\Admin\AppData\Local\Temp\63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe
"C:\Users\Admin\AppData\Local\Temp\63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3336

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 1a452fae02be163ddd945037454bcca4 omc2//L2GE+ip2xL58nQkA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:2968

C:\Users\Admin\AppData\Roaming\dgffwcj
C:\Users\Admin\AppData\Roaming\dgffwcj
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3976

C:\Users\Admin\AppData\Roaming\dgffwcj
C:\Users\Admin\AppData\Roaming\dgffwcj
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3996

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\dgffwcj
MD5
79cd578c6198391d8ce8b1ccc1b301d1

SHA1
adc7a417da2c9c01c4664c1b740c317f16dcef5c

SHA256
63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086

SHA512
7d497694a48182689c78abdbf8bbc13e1937900a4728ce7c02e06033d3b1923337bec3def940dfc3896746fab59b5b00a6e2e8de0126eff19d490290d3ee31e4

Download Submit
C:\Users\Admin\AppData\Roaming\dgffwcj
MD5
79cd578c6198391d8ce8b1ccc1b301d1

SHA1
adc7a417da2c9c01c4664c1b740c317f16dcef5c

SHA256
63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086

SHA512
7d497694a48182689c78abdbf8bbc13e1937900a4728ce7c02e06033d3b1923337bec3def940dfc3896746fab59b5b00a6e2e8de0126eff19d490290d3ee31e4

Download Submit
C:\Users\Admin\AppData\Roaming\dgffwcj
MD5
79cd578c6198391d8ce8b1ccc1b301d1

SHA1
adc7a417da2c9c01c4664c1b740c317f16dcef5c

SHA256
63fd7eed07b783897ff9b1926eb9924a37a57d4af6803958299d5c303a1d1086

SHA512
7d497694a48182689c78abdbf8bbc13e1937900a4728ce7c02e06033d3b1923337bec3def940dfc3896746fab59b5b00a6e2e8de0126eff19d490290d3ee31e4

Download Submit
memory/2236-130-0x00000000005B0000-0x00000000005DB000-memory.dmp

Filesize
172KB

Download
memory/2236-131-0x0000000000550000-0x0000000000559000-memory.dmp

Filesize
36KB

Download
memory/2520-134-0x0000000001380000-0x0000000001396000-memory.dmp

Filesize
88KB

Download
memory/2520-148-0x00000000013B0000-0x00000000013C6000-memory.dmp

Filesize
88KB

Download
memory/3336-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3336-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3976-144-0x00000000004F0000-0x000000000051B000-memory.dmp

Filesize
172KB

Download
memory/3996-147-0x0000000000400000-0x0000000000409000-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