smokeloader | 3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37

General

Target

3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe
Size

263KB
MD5

f572d2cf74a7897bebb459dc08a45411
SHA1

9a6bc0b9670cf1e5ea21876c1a71bafdec32017f
SHA256

3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37
SHA512

d75df9d31d36776841854c3708727219380cd8731d0669fd18be634047b7526299bd5e5fa561385e7dce458edee417f08ed779b3a590dc9a71450f6ef3557a33
SSDEEP

3072:Y2e/zGhApVVIbW+UHPiXQGDL5mc4IRKU1uhIrueTi21TE7idvqjfyJ+dELqPtPe:OzCbWeQmLomRTVxT4O87dEL4t

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

Modifies Installed Components in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Deletes itself 1 IoCs

Processes:

pid process

1360
Executes dropped EXE 1 IoCs

Processes:

E7A5.exe

pid process

2956 E7A5.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

15 drive.google.com
16 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:

E7A5.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 E7A5.exe

pid	process
2956	E7A5.exe

flow	ioc
15	drive.google.com
16	drive.google.com

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	E7A5.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:

3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe

Modifies registry class 5 IoCs

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe

pid	process
624	3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe
624	3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe
1360
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1360

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid process

2408 explorer.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe

pid process

624 3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe

pid	process
2408	explorer.exe

Suspicious use of AdjustPrivilegeToken 16 IoCs

Processes:

explorer.exeAUDIODG.EXE

description	pid	process
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe
Token: 33	1460	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1460	AUDIODG.EXE
Token: 33	1460	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1460	AUDIODG.EXE
Token: SeShutdownPrivilege	2408	explorer.exe
Token: SeShutdownPrivilege	2408	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

Processes:

explorer.exe

pid	process
1360
1360
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe

Suspicious use of SendNotifyMessage 18 IoCs

Processes:

explorer.exe

pid	process
1360
1360
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe
2408	explorer.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

cmd.execmd.exe

description	pid	process	target process
PID 1360 wrote to memory of 2656	1360		cmd.exe
PID 1360 wrote to memory of 2656	1360		cmd.exe
PID 1360 wrote to memory of 2656	1360		cmd.exe
PID 2656 wrote to memory of 2688	2656	cmd.exe	reg.exe
PID 2656 wrote to memory of 2688	2656	cmd.exe	reg.exe
PID 2656 wrote to memory of 2688	2656	cmd.exe	reg.exe
PID 1360 wrote to memory of 2692	1360		cmd.exe
PID 1360 wrote to memory of 2692	1360		cmd.exe
PID 1360 wrote to memory of 2692	1360		cmd.exe
PID 2692 wrote to memory of 2400	2692	cmd.exe	reg.exe
PID 2692 wrote to memory of 2400	2692	cmd.exe	reg.exe
PID 2692 wrote to memory of 2400	2692	cmd.exe	reg.exe
PID 1360 wrote to memory of 2956	1360		E7A5.exe
PID 1360 wrote to memory of 2956	1360		E7A5.exe
PID 1360 wrote to memory of 2956	1360		E7A5.exe
PID 1360 wrote to memory of 2956	1360		E7A5.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\3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe
"C:\Users\Admin\AppData\Local\Temp\3460da28a0587dedb4be574e4b26f25c807d42816562e2abdf61a34c1ac68b37.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:624

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\6364.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2688

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\8113.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\system32\reg.exe
  reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
  2⤵
  PID:2400

C:\Users\Admin\AppData\Local\Temp\E7A5.exe
C:\Users\Admin\AppData\Local\Temp\E7A5.exe
1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
PID:2956

C:\Windows\explorer.exe
explorer.exe
1⤵
- Modifies Installed Components in the registry
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2408

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x480
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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\6364.bat

Filesize
77B

MD5
55cc761bf3429324e5a0095cab002113

SHA1
2cc1ef4542a4e92d4158ab3978425d517fafd16d

SHA256
d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

SHA512
33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

Download Submit
C:\Users\Admin\AppData\Local\Temp\E7A5.exe

Filesize
421KB

MD5
9185b776b7a981d060b0bb0d7ffed201

SHA1
427982fb520c099e8d2e831ace18294ade871aff

SHA256
91a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b

SHA512
cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8

Download Submit
memory/624-1-0x0000000004480000-0x0000000004580000-memory.dmp

Filesize
1024KB

Download
memory/624-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/624-2-0x00000000003B0000-0x00000000003BB000-memory.dmp

Filesize
44KB

Download
memory/624-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/624-5-0x0000000000400000-0x0000000004033000-memory.dmp

Filesize
60.2MB

Download
memory/1360-4-0x00000000025A0000-0x00000000025B6000-memory.dmp

Filesize
88KB

Download
memory/1360-50-0x0000000002570000-0x0000000002571000-memory.dmp

Filesize
4KB

Download
memory/2408-56-0x00000000025E0000-0x00000000025F0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads