smokeloader | de3b1d992fb5ca90b7402298d5011c88df5773ad655ff5686f619d4c1da82445

General

Target

setup.exe
Size

294KB
MD5

eb4f74a0a8bd4030a4d16f021f739abb
SHA1

6df8f1d2bdd7b3dd3cc17a86ed59a3513b08ca7a
SHA256

de3b1d992fb5ca90b7402298d5011c88df5773ad655ff5686f619d4c1da82445
SHA512

40369c3946de9265d8cad01d58cd7e43ed031be9ce639d379e01020e42326c669802eec0d6ff8f6470e3baf30350aa2b5d9e3fe1f1cb9b73e451e087e1925244
SSDEEP

3072:fu8/Com8MPO2PRJ0L434TgdsFTzf2J1dm2dQg1e6CbmItJTgWvQfo:R/cPxJJ0zTz01dlzU6CCIq

Score

10^/10

smokeloader lab backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

lab

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 4648 set thread context of 4576 4648 setup.exe setup.exe

description	pid	process	target process
PID 4648 set thread context of 4576	4648	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
4576	setup.exe
4576	setup.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

1292
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

setup.exe

pid process

4576 setup.exe

pid	process
1292

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	1292
Token: SeCreatePagefilePrivilege	1292
Token: SeShutdownPrivilege	1292
Token: SeCreatePagefilePrivilege	1292
Token: SeShutdownPrivilege	1292
Token: SeCreatePagefilePrivilege	1292
Token: SeShutdownPrivilege	1292
Token: SeCreatePagefilePrivilege	1292
Token: SeShutdownPrivilege	1292
Token: SeCreatePagefilePrivilege	1292
Token: SeShutdownPrivilege	1292
Token: SeCreatePagefilePrivilege	1292

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

setup.exe

description	pid	process	target process
PID 4648 wrote to memory of 4576	4648	setup.exe	setup.exe
PID 4648 wrote to memory of 4576	4648	setup.exe	setup.exe
PID 4648 wrote to memory of 4576	4648	setup.exe	setup.exe
PID 4648 wrote to memory of 4576	4648	setup.exe	setup.exe
PID 4648 wrote to memory of 4576	4648	setup.exe	setup.exe
PID 4648 wrote to memory of 4576	4648	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:4648

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:4576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1292-137-0x0000000002910000-0x0000000002926000-memory.dmp

Filesize
88KB

Download
memory/1292-142-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-143-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-144-0x0000000002960000-0x0000000002970000-memory.dmp

Filesize
64KB

Download
memory/1292-145-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-146-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-147-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-148-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-149-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-151-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-150-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-152-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-153-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-154-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-155-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-156-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-157-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-158-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-162-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-163-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-164-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-165-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-166-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-167-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-168-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-169-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-170-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-171-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-172-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-173-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-174-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-175-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-176-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-177-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-178-0x0000000000890000-0x0000000000892000-memory.dmp

Filesize
8KB

Download
memory/1292-179-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-180-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-181-0x0000000002790000-0x0000000002792000-memory.dmp

Filesize
8KB

Download
memory/1292-182-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-183-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-184-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-185-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-186-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-187-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-188-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-189-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-190-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-191-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-192-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-193-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-194-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-195-0x0000000002950000-0x0000000002960000-memory.dmp

Filesize
64KB

Download
memory/1292-196-0x00000000027A0000-0x00000000027A9000-memory.dmp

Filesize
36KB

Download
memory/4576-134-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4576-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4576-138-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4648-135-0x0000000002C50000-0x0000000002C59000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads