smokeloader | b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2023 09:38

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General

Target

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
Size

252KB
MD5

aa61de6ebd02482cd16996c6f42ba8ab
SHA1

dea6f794cf98f0084bf14916d956818169a36b76
SHA256

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034
SHA512

2c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3
SSDEEP

3072:ajHIbQtMJSCTEKvAw2P7bhICAgYGlA5XFAf0jDb+:aEEtMJNEYAw2TCgvcX2MD

Score

10^/10

smokeloader up3 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

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

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

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 2 IoCs

Processes:

gugtvfwgugtvfw

pid process

4724 gugtvfw
4420 gugtvfw

pid	process
4724	gugtvfw
4420	gugtvfw

Suspicious use of SetThreadContext 2 IoCs

Processes:

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exegugtvfw

description	pid	process	target process
PID 460 set thread context of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 4724 set thread context of 4420	4724	gugtvfw	gugtvfw

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:

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exegugtvfw

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gugtvfw
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gugtvfw
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gugtvfw
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe

pid	process
3520	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
3520	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
3288
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3288

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3288
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exegugtvfw

pid process

3520 b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
4420 gugtvfw

pid	process
3288

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	3288
Token: SeCreatePagefilePrivilege	3288
Token: SeShutdownPrivilege	3288
Token: SeCreatePagefilePrivilege	3288
Token: SeShutdownPrivilege	3288
Token: SeCreatePagefilePrivilege	3288
Token: SeShutdownPrivilege	3288
Token: SeCreatePagefilePrivilege	3288
Token: SeShutdownPrivilege	3288
Token: SeCreatePagefilePrivilege	3288

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exegugtvfw

description	pid	process	target process
PID 460 wrote to memory of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 460 wrote to memory of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 460 wrote to memory of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 460 wrote to memory of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 460 wrote to memory of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 460 wrote to memory of 3520	460	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe	b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
PID 4724 wrote to memory of 4420	4724	gugtvfw	gugtvfw
PID 4724 wrote to memory of 4420	4724	gugtvfw	gugtvfw
PID 4724 wrote to memory of 4420	4724	gugtvfw	gugtvfw
PID 4724 wrote to memory of 4420	4724	gugtvfw	gugtvfw
PID 4724 wrote to memory of 4420	4724	gugtvfw	gugtvfw
PID 4724 wrote to memory of 4420	4724	gugtvfw	gugtvfw

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\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:460

C:\Users\Admin\AppData\Local\Temp\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034exe_JC.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3520

C:\Users\Admin\AppData\Roaming\gugtvfw
C:\Users\Admin\AppData\Roaming\gugtvfw
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4724

C:\Users\Admin\AppData\Roaming\gugtvfw
C:\Users\Admin\AppData\Roaming\gugtvfw
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\gugtvfw

Filesize
252KB

MD5
aa61de6ebd02482cd16996c6f42ba8ab

SHA1
dea6f794cf98f0084bf14916d956818169a36b76

SHA256
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034

SHA512
2c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3

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

Filesize
252KB

MD5
aa61de6ebd02482cd16996c6f42ba8ab

SHA1
dea6f794cf98f0084bf14916d956818169a36b76

SHA256
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034

SHA512
2c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3

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

Filesize
252KB

MD5
aa61de6ebd02482cd16996c6f42ba8ab

SHA1
dea6f794cf98f0084bf14916d956818169a36b76

SHA256
b54f42b5b0d19670960eb10c6789968a30df7e8532519b32d5ef33bf155fc034

SHA512
2c638be845bd245db502abee66de6eac9a96348f2e9f81e43bcf648e14caba3d2f075f4f25261ed1ae9ae542f268d36a6214bc08fec958b6eb9e6d8d42c952e3

Download Submit
memory/460-1-0x00000000008A0000-0x00000000009A0000-memory.dmp

Filesize
1024KB

Download
memory/460-2-0x0000000002450000-0x0000000002459000-memory.dmp

Filesize
36KB

Download
memory/3288-48-0x00000000034C0000-0x00000000034D0000-memory.dmp

Filesize
64KB

Download
memory/3288-18-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-16-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-94-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-17-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-93-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-19-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-20-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-24-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-23-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-22-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-25-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-26-0x00000000034C0000-0x00000000034D0000-memory.dmp

Filesize
64KB

Download
memory/3288-27-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-28-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-30-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-32-0x00000000034A0000-0x00000000034B0000-memory.dmp

Filesize
64KB

Download
memory/3288-31-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-29-0x00000000034C0000-0x00000000034D0000-memory.dmp

Filesize
64KB

Download
memory/3288-34-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-35-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-36-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-38-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-37-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-39-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-40-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-42-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-41-0x00000000034C0000-0x00000000034D0000-memory.dmp

Filesize
64KB

Download
memory/3288-43-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-44-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-45-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-46-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-47-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-13-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-15-0x00000000034A0000-0x00000000034B0000-memory.dmp

Filesize
64KB

Download
memory/3288-92-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-14-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-91-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-5-0x0000000003040000-0x0000000003056000-memory.dmp

Filesize
88KB

Download
memory/3288-55-0x00000000034C0000-0x00000000034D6000-memory.dmp

Filesize
88KB

Download
memory/3288-88-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-61-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-62-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-63-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-64-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-65-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-66-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-69-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-68-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-67-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-71-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-72-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-73-0x00000000034F0000-0x0000000003500000-memory.dmp

Filesize
64KB

Download
memory/3288-74-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-75-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-76-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-78-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-77-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-82-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-80-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-84-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-85-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-87-0x00000000034F0000-0x0000000003500000-memory.dmp

Filesize
64KB

Download
memory/3288-86-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-89-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3288-90-0x0000000003480000-0x0000000003490000-memory.dmp

Filesize
64KB

Download
memory/3520-6-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3520-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3520-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4420-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4724-52-0x0000000000A50000-0x0000000000B50000-memory.dmp

Filesize
1024KB

Download