smokeloader | e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09

General

Target

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
Size

189KB
MD5

9ecba0f31f2adf6df2d580f853b725bc
SHA1

021cd7c797db390130fc4e233175954f126a979d
SHA256

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09
SHA512

9bd9c843e92897a101e559b87a0d7c7bb772e03b70351835177bccbe10f2dba3b276bd147f09da3a64426a349b59f51e9341ced70ccf4c1fbe7b040fb1bf48a4

Score

10^/10

smokeloader backdoor 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:

cruhuhfcruhuhf

pid process

1404 cruhuhf
1460 cruhuhf
Deletes itself 1 IoCs

Processes:

pid process

3040

pid	process
1404	cruhuhf
1460	cruhuhf

pid	process
3040

Suspicious use of SetThreadContext 2 IoCs

Processes:

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.execruhuhf

description	pid	process	target process
PID 2580 set thread context of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 1404 set thread context of 1460	1404	cruhuhf	cruhuhf

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:

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.execruhuhf

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cruhuhf
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cruhuhf
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cruhuhf

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe

pid	process
3824	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
3824	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
3040
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3040

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3040
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.execruhuhf

pid process

3824 e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
1460 cruhuhf
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 3040
Token: SeCreatePagefilePrivilege 3040

pid	process
3040

description	pid	process
Token: SeShutdownPrivilege	3040
Token: SeCreatePagefilePrivilege	3040

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.execruhuhf

description	pid	process	target process
PID 2580 wrote to memory of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 2580 wrote to memory of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 2580 wrote to memory of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 2580 wrote to memory of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 2580 wrote to memory of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 2580 wrote to memory of 3824	2580	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe	e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
PID 1404 wrote to memory of 1460	1404	cruhuhf	cruhuhf
PID 1404 wrote to memory of 1460	1404	cruhuhf	cruhuhf
PID 1404 wrote to memory of 1460	1404	cruhuhf	cruhuhf
PID 1404 wrote to memory of 1460	1404	cruhuhf	cruhuhf
PID 1404 wrote to memory of 1460	1404	cruhuhf	cruhuhf
PID 1404 wrote to memory of 1460	1404	cruhuhf	cruhuhf

C:\Users\Admin\AppData\Local\Temp\e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
"C:\Users\Admin\AppData\Local\Temp\e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2580

C:\Users\Admin\AppData\Local\Temp\e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe
"C:\Users\Admin\AppData\Local\Temp\e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3824

C:\Users\Admin\AppData\Roaming\cruhuhf
C:\Users\Admin\AppData\Roaming\cruhuhf
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1404

C:\Users\Admin\AppData\Roaming\cruhuhf
C:\Users\Admin\AppData\Roaming\cruhuhf
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1460

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\cruhuhf
MD5
9ecba0f31f2adf6df2d580f853b725bc

SHA1
021cd7c797db390130fc4e233175954f126a979d

SHA256
e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09

SHA512
9bd9c843e92897a101e559b87a0d7c7bb772e03b70351835177bccbe10f2dba3b276bd147f09da3a64426a349b59f51e9341ced70ccf4c1fbe7b040fb1bf48a4

Download Submit
C:\Users\Admin\AppData\Roaming\cruhuhf
MD5
9ecba0f31f2adf6df2d580f853b725bc

SHA1
021cd7c797db390130fc4e233175954f126a979d

SHA256
e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09

SHA512
9bd9c843e92897a101e559b87a0d7c7bb772e03b70351835177bccbe10f2dba3b276bd147f09da3a64426a349b59f51e9341ced70ccf4c1fbe7b040fb1bf48a4

Download Submit
C:\Users\Admin\AppData\Roaming\cruhuhf
MD5
9ecba0f31f2adf6df2d580f853b725bc

SHA1
021cd7c797db390130fc4e233175954f126a979d

SHA256
e39cd79aa737bae33312424db118f021e2f02ff2de0f9721c54356f1af340e09

SHA512
9bd9c843e92897a101e559b87a0d7c7bb772e03b70351835177bccbe10f2dba3b276bd147f09da3a64426a349b59f51e9341ced70ccf4c1fbe7b040fb1bf48a4

Download Submit
memory/1460-125-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2580-116-0x0000000000610000-0x0000000000634000-memory.dmp

Filesize
144KB

Download
memory/3040-119-0x00000000005C0000-0x00000000005D6000-memory.dmp

Filesize
88KB

Download
memory/3040-126-0x0000000000710000-0x0000000000726000-memory.dmp

Filesize
88KB

Download
memory/3824-117-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3824-118-0x0000000000400000-0x0000000000409000-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