smokeloader | a1409f24e40fb5a5f190d68d237cfa5bb343e3796902dd09a5cce202a681f2c8

Analysis

max time kernel
150s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2023, 01:09

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General

Target

setup.exe
Size

273KB
MD5

5d94d7efb94c90808f3d17e4665c7734
SHA1

b33c42a804ed9208ee457ea466119b8fa8b0e24d
SHA256

a1409f24e40fb5a5f190d68d237cfa5bb343e3796902dd09a5cce202a681f2c8
SHA512

c44cc01c9e9fb627e717075e852c41892ea8b248c729ee5d7fbdc9a5435d8999ef1b97f7c77ed5a421134328a7eeca7fc0e49b4aa2acdd0ab00acc5fa9d64c39
SSDEEP

3072:Cm8s08r4RtqubALv2po58+SMprhseGzPFQt8zd6U5OrpNCJQN0fm2Rh:SttqKe58+uxQyB6cOuTfz

Score

10^/10

smokeloader sprg backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

sprg

Extracted

Family

smokeloader

Version

2022

http://hoh0aeghwugh2gie.com/

http://hie7doodohpae4na.com/

http://aek0aicifaloh1yo.com/

http://yic0oosaeiy7ahng.com/

http://wa5zu7sekai8xeih.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 1 IoCs

pid	Process
3536	huuictt

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

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	huuictt
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	huuictt
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	huuictt

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4344	setup.exe
4344	setup.exe
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3112	Process not Found

Suspicious behavior: MapViewOfSection 20 IoCs

pid	Process
4344	setup.exe
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3536	huuictt
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found
3112	Process not Found

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 5060	3112	Process not Found	93
PID 3112 wrote to memory of 5060	3112	Process not Found	93
PID 3112 wrote to memory of 5060	3112	Process not Found	93
PID 3112 wrote to memory of 5060	3112	Process not Found	93
PID 3112 wrote to memory of 3844	3112	Process not Found	95
PID 3112 wrote to memory of 3844	3112	Process not Found	95
PID 3112 wrote to memory of 3844	3112	Process not Found	95
PID 3112 wrote to memory of 1520	3112	Process not Found	96
PID 3112 wrote to memory of 1520	3112	Process not Found	96
PID 3112 wrote to memory of 1520	3112	Process not Found	96
PID 3112 wrote to memory of 1520	3112	Process not Found	96
PID 3112 wrote to memory of 960	3112	Process not Found	97
PID 3112 wrote to memory of 960	3112	Process not Found	97
PID 3112 wrote to memory of 960	3112	Process not Found	97
PID 3112 wrote to memory of 4240	3112	Process not Found	98
PID 3112 wrote to memory of 4240	3112	Process not Found	98
PID 3112 wrote to memory of 4240	3112	Process not Found	98
PID 3112 wrote to memory of 4240	3112	Process not Found	98
PID 3112 wrote to memory of 4952	3112	Process not Found	99
PID 3112 wrote to memory of 4952	3112	Process not Found	99
PID 3112 wrote to memory of 4952	3112	Process not Found	99
PID 3112 wrote to memory of 4952	3112	Process not Found	99
PID 3112 wrote to memory of 776	3112	Process not Found	100
PID 3112 wrote to memory of 776	3112	Process not Found	100
PID 3112 wrote to memory of 776	3112	Process not Found	100
PID 3112 wrote to memory of 776	3112	Process not Found	100
PID 3112 wrote to memory of 1472	3112	Process not Found	101
PID 3112 wrote to memory of 1472	3112	Process not Found	101
PID 3112 wrote to memory of 1472	3112	Process not Found	101
PID 3112 wrote to memory of 1036	3112	Process not Found	102
PID 3112 wrote to memory of 1036	3112	Process not Found	102
PID 3112 wrote to memory of 1036	3112	Process not Found	102
PID 3112 wrote to memory of 1036	3112	Process not Found	102

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⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4344

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:5060

C:\Users\Admin\AppData\Roaming\huuictt
C:\Users\Admin\AppData\Roaming\huuictt
1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3536

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3844

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1520

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:960

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4240

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4952

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:776

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1472

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\huuictt

Filesize
273KB

MD5
5d94d7efb94c90808f3d17e4665c7734

SHA1
b33c42a804ed9208ee457ea466119b8fa8b0e24d

SHA256
a1409f24e40fb5a5f190d68d237cfa5bb343e3796902dd09a5cce202a681f2c8

SHA512
c44cc01c9e9fb627e717075e852c41892ea8b248c729ee5d7fbdc9a5435d8999ef1b97f7c77ed5a421134328a7eeca7fc0e49b4aa2acdd0ab00acc5fa9d64c39

Download Submit
C:\Users\Admin\AppData\Roaming\huuictt

Filesize
273KB

MD5
5d94d7efb94c90808f3d17e4665c7734

SHA1
b33c42a804ed9208ee457ea466119b8fa8b0e24d

SHA256
a1409f24e40fb5a5f190d68d237cfa5bb343e3796902dd09a5cce202a681f2c8

SHA512
c44cc01c9e9fb627e717075e852c41892ea8b248c729ee5d7fbdc9a5435d8999ef1b97f7c77ed5a421134328a7eeca7fc0e49b4aa2acdd0ab00acc5fa9d64c39

Download Submit
memory/776-170-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/776-171-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/776-182-0x0000000000120000-0x0000000000129000-memory.dmp

Filesize
36KB

Download
memory/960-158-0x0000000000F10000-0x0000000000F1C000-memory.dmp

Filesize
48KB

Download
memory/960-159-0x0000000000F10000-0x0000000000F1C000-memory.dmp

Filesize
48KB

Download
memory/960-180-0x00000000005A0000-0x00000000005A9000-memory.dmp

Filesize
36KB

Download
memory/1036-175-0x0000000000E10000-0x0000000000E1B000-memory.dmp

Filesize
44KB

Download
memory/1036-176-0x0000000000E10000-0x0000000000E1B000-memory.dmp

Filesize
44KB

Download
memory/1036-184-0x00000000004A0000-0x00000000004AD000-memory.dmp

Filesize
52KB

Download
memory/1472-172-0x00000000004A0000-0x00000000004AD000-memory.dmp

Filesize
52KB

Download
memory/1472-183-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/1472-174-0x00000000004A0000-0x00000000004AD000-memory.dmp

Filesize
52KB

Download
memory/1472-173-0x0000000000F20000-0x0000000000F2B000-memory.dmp

Filesize
44KB

Download
memory/1520-156-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/1520-157-0x00000000005A0000-0x00000000005A9000-memory.dmp

Filesize
36KB

Download
memory/1520-179-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/1520-155-0x00000000005A0000-0x00000000005A9000-memory.dmp

Filesize
36KB

Download
memory/3112-164-0x00000000026D0000-0x00000000026E6000-memory.dmp

Filesize
88KB

Download
memory/3112-135-0x0000000000CF0000-0x0000000000D06000-memory.dmp

Filesize
88KB

Download
memory/3536-165-0x0000000000400000-0x0000000002B71000-memory.dmp

Filesize
39.4MB

Download
memory/3844-153-0x0000000002C80000-0x0000000002C89000-memory.dmp

Filesize
36KB

Download
memory/3844-178-0x0000000002C80000-0x0000000002C89000-memory.dmp

Filesize
36KB

Download
memory/3844-152-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/3844-154-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/4240-162-0x0000000001200000-0x0000000001227000-memory.dmp

Filesize
156KB

Download
memory/4240-161-0x0000000000F10000-0x0000000000F1C000-memory.dmp

Filesize
48KB

Download
memory/4240-160-0x0000000001200000-0x0000000001227000-memory.dmp

Filesize
156KB

Download
memory/4344-136-0x0000000000400000-0x0000000002B71000-memory.dmp

Filesize
39.4MB

Download
memory/4344-134-0x00000000001F0000-0x00000000001F9000-memory.dmp

Filesize
36KB

Download
memory/4952-181-0x0000000001200000-0x0000000001227000-memory.dmp

Filesize
156KB

Download
memory/4952-163-0x0000000000120000-0x0000000000129000-memory.dmp

Filesize
36KB

Download
memory/4952-169-0x0000000000120000-0x0000000000129000-memory.dmp

Filesize
36KB

Download
memory/4952-168-0x0000000001200000-0x0000000001227000-memory.dmp

Filesize
156KB

Download
memory/5060-177-0x00000000001F0000-0x00000000001F9000-memory.dmp

Filesize
36KB

Download
memory/5060-151-0x0000000000590000-0x000000000059B000-memory.dmp

Filesize
44KB

Download
memory/5060-149-0x00000000001F0000-0x00000000001F9000-memory.dmp

Filesize
36KB

Download
memory/5060-148-0x0000000000590000-0x000000000059B000-memory.dmp

Filesize
44KB

Download