smokeloader | 2925436a2f764bcc11374f66b86a3b93495c7a8949136b45d7fb99dc6c57db1f

General

Target

setup.exe
Size

260KB
MD5

6d4983ad5a6158e5ebd5366286d4f3a6
SHA1

a75ebee6eef09ab526856a8d40ff731d99a27059
SHA256

2925436a2f764bcc11374f66b86a3b93495c7a8949136b45d7fb99dc6c57db1f
SHA512

e5301ef9b4951e1d7013125240eb7acf783b5489cafb4f7504afce6873394b2fb05bfc8f808db0272771348b7dbe17cc712672a52b1c83cf7e83297df5719203
SSDEEP

3072:IXgcJ9x5NGhbv6QWiyuaG3f3yHg0O3xlNwxAyLXNP+Y/Joz1VGlB9KUqaJSNn:wT9G8SRaGvCHg3byLXd/iDkgFaW

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32

Signatures

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 632 set thread context of 1004 632 setup.exe setup.exe

description	pid	process	target process
PID 632 set thread context of 1004	632	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:

setup.exe

pid	process
1004	setup.exe
1004	setup.exe
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
3144
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3144
3144
3144
3144
3144
3144

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3144
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

setup.exe

pid process

1004 setup.exe

pid	process
3144

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	3144
Token: SeCreatePagefilePrivilege	3144
Token: SeShutdownPrivilege	3144
Token: SeCreatePagefilePrivilege	3144
Token: SeShutdownPrivilege	3144
Token: SeCreatePagefilePrivilege	3144
Token: SeShutdownPrivilege	3144
Token: SeCreatePagefilePrivilege	3144

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

setup.exe

description	pid	process	target process
PID 632 wrote to memory of 1004	632	setup.exe	setup.exe
PID 632 wrote to memory of 1004	632	setup.exe	setup.exe
PID 632 wrote to memory of 1004	632	setup.exe	setup.exe
PID 632 wrote to memory of 1004	632	setup.exe	setup.exe
PID 632 wrote to memory of 1004	632	setup.exe	setup.exe
PID 632 wrote to memory of 1004	632	setup.exe	setup.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:632

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:1004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/632-135-0x00000000001F0000-0x00000000001F9000-memory.dmp

Filesize
36KB

Download
memory/1004-134-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1004-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1004-138-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3144-162-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-178-0x0000000000EB0000-0x0000000000EB2000-memory.dmp

Filesize
8KB

Download
memory/3144-146-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-147-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-148-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-149-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-137-0x0000000000B20000-0x0000000000B36000-memory.dmp

Filesize
88KB

Download
memory/3144-151-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-152-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-155-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-156-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-154-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-153-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-157-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-158-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-159-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-160-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-164-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-150-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-145-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-161-0x0000000000AF0000-0x0000000000AFA000-memory.dmp

Filesize
40KB

Download
memory/3144-165-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-166-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-167-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-168-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-169-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-170-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-171-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-172-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-173-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-174-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-175-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-176-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-177-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-163-0x00000000073C0000-0x00000000073D0000-memory.dmp

Filesize
64KB

Download
memory/3144-179-0x00000000073B0000-0x00000000073C0000-memory.dmp

Filesize
64KB

Download
memory/3144-180-0x00000000073B0000-0x00000000073C0000-memory.dmp

Filesize
64KB

Download
memory/3144-181-0x00000000073B0000-0x00000000073C0000-memory.dmp

Filesize
64KB

Download
memory/3144-182-0x00000000073B0000-0x00000000073C0000-memory.dmp

Filesize
64KB

Download
memory/3144-183-0x00000000073B0000-0x00000000073C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads