smokeloader | 114ea9b07c8ace69fd226de16f2555c3fcb038696919f4941c4f07d4d800ebf5

General

Target

Setup.exe
Size

8.6MB
MD5

03437bed2c1be98cc70efda4e1028565
SHA1

f7980b42bf62b9bdac3e2d033d43cba7f78801a1
SHA256

114ea9b07c8ace69fd226de16f2555c3fcb038696919f4941c4f07d4d800ebf5
SHA512

7fd362dceb4a3ac58e4a13191ec6835bbbf178c5b0bd02c130386f5bd51f7141c23f6154b9b44db6242e04c107085ad45e907a5d0a017a3049de04f4fea01a93
SSDEEP

98304:n1EqlRyB+/T6Mzg2NA6S6m2ytriL3Yj+ijoIq:niwRyB+xUwQtrijuW

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1212-65-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1212-66-0x0000000000402FAC-mapping.dmp	family_smokeloader
behavioral1/memory/1212-68-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1212-69-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Suspicious use of SetThreadContext 1 IoCs

Processes:

Setup.exe

description pid process target process

PID 768 set thread context of 1212 768 Setup.exe Setup.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 768 set thread context of 1212	768	Setup.exe	Setup.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:

Setup.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exeSetup.exe

pid	process
2040	powershell.exe
1212	Setup.exe
1212	Setup.exe
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

Setup.exe

pid process

1212 Setup.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Setup.exepowershell.exe

description pid process

Token: SeDebugPrivilege 768 Setup.exe
Token: SeDebugPrivilege 2040 powershell.exe

pid	process
1212	Setup.exe

description	pid	process
Token: SeDebugPrivilege	768	Setup.exe
Token: SeDebugPrivilege	2040	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Setup.exe

description	pid	process	target process
PID 768 wrote to memory of 2040	768	Setup.exe	powershell.exe
PID 768 wrote to memory of 2040	768	Setup.exe	powershell.exe
PID 768 wrote to memory of 2040	768	Setup.exe	powershell.exe
PID 768 wrote to memory of 2040	768	Setup.exe	powershell.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe
PID 768 wrote to memory of 1212	768	Setup.exe	Setup.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2040

C:\Users\Admin\AppData\Local\Temp\Setup.exe
C:\Users\Admin\AppData\Local\Temp\Setup.exe
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1212

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/768-54-0x0000000076871000-0x0000000076873000-memory.dmp

Filesize
8KB

Download
memory/768-55-0x0000000000AD0000-0x0000000000F78000-memory.dmp

Filesize
4.7MB

Download
memory/768-56-0x00000000010F0000-0x00000000011BC000-memory.dmp

Filesize
816KB

Download
memory/768-57-0x0000000004E00000-0x0000000004E92000-memory.dmp

Filesize
584KB

Download
memory/1212-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1212-62-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1212-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1212-66-0x0000000000402FAC-mapping.dmp

Download
memory/1212-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1212-69-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2040-60-0x0000000070040000-0x00000000705EB000-memory.dmp

Filesize
5.7MB

Download
memory/2040-61-0x0000000070040000-0x00000000705EB000-memory.dmp

Filesize
5.7MB

Download
memory/2040-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads