smokeloader | a51b880c04fcc66cc1c561b3b490b04db675f2775bbf1dfc299572d2401e706d

Analysis

max time kernel
151s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
06-06-2023 13:21

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General

Target

file.exe
Size

241KB
MD5

dc076ed6da7792af479120129fad2716
SHA1

5950886a02ed459d9ffa92b98a1c4b0462e0de88
SHA256

a51b880c04fcc66cc1c561b3b490b04db675f2775bbf1dfc299572d2401e706d
SHA512

e58ff229a7649f58f75ed3fba90c72be7d1b378a9f8d2e184039dd9bbd7b04e925a556f410176b4711497caa7edbc7bff87d1e09870077cabf338def098e8a85
SSDEEP

3072:zfFQgZdMFWaC7RMgxSMGyfTuyyHM3IZcY+5wxv+mG+O3VKdFp7CnYTRqKV/c:zFQkMFxhgxSMGyyLUzSR+1+GXYM

Score

10^/10

smokeloader pub1 backdoor discovery spyware stealer trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

http://toobussy.com/tmp/

http://wuc11.com/tmp/

http://ladogatur.ru/tmp/

http://kingpirate.ru/tmp/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

CE51.exe

pid process

1720 CE51.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1324 1720 WerFault.exe CE51.exe

pid	process
1720	CE51.exe

pid	pid_target	process	target process
1324	1720	WerFault.exe	CE51.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:

file.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

file.exe

pid	process
1416	file.exe
1416	file.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

756
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

1416 file.exe

pid	process
756

Suspicious use of AdjustPrivilegeToken 15 IoCs

Processes:

CE51.exe

description	pid	process
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756
Token: SeDebugPrivilege	1720	CE51.exe
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756
Token: SeShutdownPrivilege	756
Token: SeCreatePagefilePrivilege	756

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

description	pid	target process
PID 756 wrote to memory of 1720	756	CE51.exe
PID 756 wrote to memory of 1720	756	CE51.exe
PID 756 wrote to memory of 1720	756	CE51.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\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1416

C:\Users\Admin\AppData\Local\Temp\CE51.exe
C:\Users\Admin\AppData\Local\Temp\CE51.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 1224
2⤵
- Program crash
PID:1324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1720 -ip 1720
1⤵
PID:1840

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CE51.exe
Filesize
338KB

MD5
f01d05137762dd36a5c548279246b113

SHA1
7105ba81779f4e2353565819e8b0f8934132348d

SHA256
36613338c586fb7ddf36d7cda3c336180127030cc16f558e20e725f8542f01e6

SHA512
38aa9e9dad0e4dfb4de06d34d952172be854d7174e7a9e87bd98a12d9fcf5eb2cbe179ed34f83a570c7da46f14eb545427e7cca382c08014de9cdf57525c0bf3

Download Submit
C:\Users\Admin\AppData\Local\Temp\CE51.exe
Filesize
338KB

MD5
f01d05137762dd36a5c548279246b113

SHA1
7105ba81779f4e2353565819e8b0f8934132348d

SHA256
36613338c586fb7ddf36d7cda3c336180127030cc16f558e20e725f8542f01e6

SHA512
38aa9e9dad0e4dfb4de06d34d952172be854d7174e7a9e87bd98a12d9fcf5eb2cbe179ed34f83a570c7da46f14eb545427e7cca382c08014de9cdf57525c0bf3

Download Submit
memory/756-182-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-199-0x0000000000CF0000-0x0000000000CFB000-memory.dmp

Filesize
44KB

Download
memory/756-141-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-140-0x0000000002E70000-0x0000000002E80000-memory.dmp

Filesize
64KB

Download
memory/756-142-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-144-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-145-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-143-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-146-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-147-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-148-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-149-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-150-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-151-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-152-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-153-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-154-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-155-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-156-0x0000000002E90000-0x0000000002E99000-memory.dmp

Filesize
36KB

Download
memory/756-218-0x0000000002EA0000-0x0000000002EB0000-memory.dmp

Filesize
64KB

Download
memory/756-135-0x0000000000980000-0x0000000000996000-memory.dmp

Filesize
88KB

Download
memory/756-217-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-216-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-214-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-213-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-212-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-211-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-210-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-209-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-208-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-207-0x0000000002E80000-0x0000000002E82000-memory.dmp

Filesize
8KB

Download
memory/756-206-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-205-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-204-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-203-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-179-0x0000000002E70000-0x0000000002E80000-memory.dmp

Filesize
64KB

Download
memory/756-202-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-215-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-139-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-184-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-185-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-186-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-187-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-188-0x0000000000CE0000-0x0000000000CE2000-memory.dmp

Filesize
8KB

Download
memory/756-189-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-190-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-191-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-192-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-193-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-194-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-195-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-196-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-197-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-198-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-183-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/756-200-0x0000000000CE0000-0x0000000000CE2000-memory.dmp

Filesize
8KB

Download
memory/756-201-0x0000000002870000-0x0000000002880000-memory.dmp

Filesize
64KB

Download
memory/1416-136-0x0000000000400000-0x0000000002CE3000-memory.dmp

Filesize
40.9MB

Download
memory/1416-134-0x0000000002E40000-0x0000000002E49000-memory.dmp

Filesize
36KB

Download
memory/1720-178-0x00000000090A0000-0x00000000095CC000-memory.dmp

Filesize
5.2MB

Download
memory/1720-177-0x0000000008EB0000-0x0000000009072000-memory.dmp

Filesize
1.8MB

Download
memory/1720-175-0x0000000008D40000-0x0000000008DB6000-memory.dmp

Filesize
472KB

Download
memory/1720-174-0x0000000008B70000-0x0000000008C02000-memory.dmp

Filesize
584KB

Download
memory/1720-173-0x0000000008370000-0x00000000083D6000-memory.dmp

Filesize
408KB

Download
memory/1720-170-0x0000000007FF0000-0x00000000080FA000-memory.dmp

Filesize
1.0MB

Download
memory/1720-171-0x0000000005030000-0x000000000506C000-memory.dmp

Filesize
240KB

Download
memory/1720-176-0x0000000008E00000-0x0000000008E1E000-memory.dmp

Filesize
120KB

Download
memory/1720-169-0x0000000005010000-0x0000000005022000-memory.dmp

Filesize
72KB

Download
memory/1720-168-0x00000000079D0000-0x0000000007FE8000-memory.dmp

Filesize
6.1MB

Download
memory/1720-167-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download
memory/1720-181-0x0000000000400000-0x0000000002CFB000-memory.dmp

Filesize
41.0MB

Download
memory/1720-166-0x0000000004810000-0x000000000484D000-memory.dmp

Filesize
244KB

Download
memory/1720-165-0x0000000007420000-0x00000000079C4000-memory.dmp

Filesize
5.6MB

Download
memory/1720-172-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download