smokeloader | 8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa

Reason

Machine shutdown: "{\"level\":\"info\",\"time\":\"2024-04-25T00:45:27Z\",\"message\":\"Dirty snapshot: /var/lib/sandbox/hatchvm/win7-20240215-en/instance_9-dirty.qcow2\"}"

General

Target

8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
Size

240KB
MD5

817d3b2845b7869b9fc71086755bef75
SHA1

62afe642e08e778593a54c053af79cb2efecbe6b
SHA256

8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa
SHA512

23fa2f5a78a1fcba86ec53b509d05fd8134a8d6466cf7aaffd7e39ef7ab812607eab0c40faea7512c4defdaa1c74ca7872504c5fae5597e3e0ae81bb990f453d
SSDEEP

3072:GHAEvKLe+EtqHInlgz3OWtd6IwYbF2u5u1SkLRaQedb:nL7EXlgzzOI3beUJ5

Score

10^/10

smokeloader pub1 backdoor bootkit persistence trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Downloads MZ/PE file
Deletes itself 1 IoCs

Processes:

pid process

1208
Executes dropped EXE 2 IoCs

Processes:

E256.exeswavdjt

pid process

3036 E256.exe
2536 swavdjt
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

41 drive.google.com
42 drive.google.com
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

E256.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 E256.exe

pid	process
1208

pid	process
3036	E256.exe
2536	swavdjt

flow	ioc
41	drive.google.com
42	drive.google.com

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	E256.exe

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:

8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exeswavdjt

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	swavdjt
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	swavdjt
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	swavdjt

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe

pid	process
1304	8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
1304	8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
1208
1208
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1208
1208

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

1208
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exeswavdjt

pid process

1304 8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
2536 swavdjt

pid	process
1208

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

E256.exe

description	pid	process
Token: SeShutdownPrivilege	1208
Token: SeShutdownPrivilege	1208
Token: SeShutdownPrivilege	1208
Token: SeShutdownPrivilege	1208
Token: SeShutdownPrivilege	3036	E256.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

pid process

1208
1208
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

pid process

1208
1208

pid	process
1208
1208

pid	process
1208
1208

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

cmd.execmd.exetaskeng.exe

description	pid	process	target process
PID 1208 wrote to memory of 2268	1208		cmd.exe
PID 1208 wrote to memory of 2268	1208		cmd.exe
PID 1208 wrote to memory of 2268	1208		cmd.exe
PID 2268 wrote to memory of 2664	2268	cmd.exe	reg.exe
PID 2268 wrote to memory of 2664	2268	cmd.exe	reg.exe
PID 2268 wrote to memory of 2664	2268	cmd.exe	reg.exe
PID 1208 wrote to memory of 2756	1208		cmd.exe
PID 1208 wrote to memory of 2756	1208		cmd.exe
PID 1208 wrote to memory of 2756	1208		cmd.exe
PID 2756 wrote to memory of 2868	2756	cmd.exe	reg.exe
PID 2756 wrote to memory of 2868	2756	cmd.exe	reg.exe
PID 2756 wrote to memory of 2868	2756	cmd.exe	reg.exe
PID 1208 wrote to memory of 3036	1208		E256.exe
PID 1208 wrote to memory of 3036	1208		E256.exe
PID 1208 wrote to memory of 3036	1208		E256.exe
PID 1208 wrote to memory of 3036	1208		E256.exe
PID 1664 wrote to memory of 2536	1664	taskeng.exe	swavdjt
PID 1664 wrote to memory of 2536	1664	taskeng.exe	swavdjt
PID 1664 wrote to memory of 2536	1664	taskeng.exe	swavdjt
PID 1664 wrote to memory of 2536	1664	taskeng.exe	swavdjt

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\8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe
"C:\Users\Admin\AppData\Local\Temp\8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1304

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\6AF3.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2664

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\9D69.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2868

C:\Users\Admin\AppData\Local\Temp\E256.exe
C:\Users\Admin\AppData\Local\Temp\E256.exe
1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
PID:3036

C:\Windows\system32\taskeng.exe
taskeng.exe {10DAB837-3F04-4A3F-9113-612A73CB97B6} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1664
- C:\Users\Admin\AppData\Roaming\swavdjt
  C:\Users\Admin\AppData\Roaming\swavdjt
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\6AF3.bat

Filesize
77B

MD5
55cc761bf3429324e5a0095cab002113

SHA1
2cc1ef4542a4e92d4158ab3978425d517fafd16d

SHA256
d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

SHA512
33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

Download Submit
C:\Users\Admin\AppData\Local\Temp\E256.exe

Filesize
421KB

MD5
9185b776b7a981d060b0bb0d7ffed201

SHA1
427982fb520c099e8d2e831ace18294ade871aff

SHA256
91a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b

SHA512
cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8

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

Filesize
240KB

MD5
817d3b2845b7869b9fc71086755bef75

SHA1
62afe642e08e778593a54c053af79cb2efecbe6b

SHA256
8a2abd6e386df2a7e44e4bfa90a327b92eccdf343341ef7a984b3b2bd796c1fa

SHA512
23fa2f5a78a1fcba86ec53b509d05fd8134a8d6466cf7aaffd7e39ef7ab812607eab0c40faea7512c4defdaa1c74ca7872504c5fae5597e3e0ae81bb990f453d

Download Submit
memory/1208-4-0x0000000002F10000-0x0000000002F26000-memory.dmp

Filesize
88KB

Download
memory/1208-38-0x0000000002F90000-0x0000000002FA6000-memory.dmp

Filesize
88KB

Download
memory/1304-1-0x0000000002D50000-0x0000000002E50000-memory.dmp

Filesize
1024KB

Download
memory/1304-2-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/1304-3-0x0000000000400000-0x0000000002C1F000-memory.dmp

Filesize
40.1MB

Download
memory/1304-5-0x0000000000400000-0x0000000002C1F000-memory.dmp

Filesize
40.1MB

Download
memory/2536-36-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

Filesize
1024KB

Download
memory/2536-37-0x0000000000400000-0x0000000002C1F000-memory.dmp

Filesize
40.1MB

Download
memory/2536-39-0x0000000000400000-0x0000000002C1F000-memory.dmp

Filesize
40.1MB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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