smokeloader | a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210

General

Target

a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
Size

226KB
MD5

dcfd9f02149a657f70ed4e58f5c71d74
SHA1

93140ba9a84c78ee3a4aece21c0d832e334efb2a
SHA256

a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210
SHA512

5d9ba4c29bb1cdcd68acb82bf053804a5f07a6dbaa000fd82577b283823467324316c53d5be61c8e2ca4b0d67b98d249e7c36d67da94fa36e4e2265e4386003d
SSDEEP

3072:yvqVLdfvUMPQmPX5j8m+5BsanVkM3An8O0kmlxGzzdiLfhGFpX7BkDyGQ:f9QmPpomnJMwC3A0s/XO

Score

10^/10

smokeloader pub1 backdoor 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

1352
Executes dropped EXE 2 IoCs

Processes:

hwfaieb7ED.exe

pid process

960 hwfaieb
1092 7ED.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

36 drive.google.com
37 drive.google.com

pid	process
960	hwfaieb
1092	7ED.exe

flow	ioc
36	drive.google.com
37	drive.google.com

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:

hwfaieba215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hwfaieb
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hwfaieb
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hwfaieb

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:

a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe

pid	process
2372	a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
2372	a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
1352
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1352
1352

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid process

1656 explorer.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exehwfaieb

pid process

2372 a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
960 hwfaieb

pid	process
1656	explorer.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

explorer.exe

description	pid	process
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe
Token: SeShutdownPrivilege	1656	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

Processes:

explorer.exe

pid	process
1352
1352
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe

Suspicious use of SendNotifyMessage 22 IoCs

Processes:

explorer.exe

pid	process
1352
1352
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe
1656	explorer.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

cmd.execmd.exetaskeng.exeexplorer.exe

description	pid	process	target process
PID 1352 wrote to memory of 2656	1352		cmd.exe
PID 1352 wrote to memory of 2656	1352		cmd.exe
PID 1352 wrote to memory of 2656	1352		cmd.exe
PID 2656 wrote to memory of 2600	2656	cmd.exe	reg.exe
PID 2656 wrote to memory of 2600	2656	cmd.exe	reg.exe
PID 2656 wrote to memory of 2600	2656	cmd.exe	reg.exe
PID 1352 wrote to memory of 804	1352		cmd.exe
PID 1352 wrote to memory of 804	1352		cmd.exe
PID 1352 wrote to memory of 804	1352		cmd.exe
PID 804 wrote to memory of 1920	804	cmd.exe	reg.exe
PID 804 wrote to memory of 1920	804	cmd.exe	reg.exe
PID 804 wrote to memory of 1920	804	cmd.exe	reg.exe
PID 1104 wrote to memory of 960	1104	taskeng.exe	hwfaieb
PID 1104 wrote to memory of 960	1104	taskeng.exe	hwfaieb
PID 1104 wrote to memory of 960	1104	taskeng.exe	hwfaieb
PID 1104 wrote to memory of 960	1104	taskeng.exe	hwfaieb
PID 1656 wrote to memory of 1092	1656	explorer.exe	7ED.exe
PID 1656 wrote to memory of 1092	1656	explorer.exe	7ED.exe
PID 1656 wrote to memory of 1092	1656	explorer.exe	7ED.exe
PID 1656 wrote to memory of 1092	1656	explorer.exe	7ED.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\a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe
"C:\Users\Admin\AppData\Local\Temp\a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2372

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\5CEF.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:2600

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\6C5B.bat" "
1⤵
- Suspicious use of WriteProcessMemory
PID:804

C:\Windows\system32\reg.exe
reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
2⤵
PID:1920

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
- Suspicious use of WriteProcessMemory
PID:1656

C:\Users\Admin\AppData\Local\Temp\7ED.exe
C:\Users\Admin\AppData\Local\Temp\7ED.exe
2⤵
- Executes dropped EXE
PID:1092

C:\Windows\system32\taskeng.exe
taskeng.exe {2EA67CCB-CDD3-44D7-83CD-CB0F6CA52B7E} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1104

C:\Users\Admin\AppData\Roaming\hwfaieb
C:\Users\Admin\AppData\Roaming\hwfaieb
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:960

C:\Windows\explorer.exe
explorer.exe
1⤵
PID:2380

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1

T1102

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\5CEF.bat
Filesize
77B

MD5
55cc761bf3429324e5a0095cab002113

SHA1
2cc1ef4542a4e92d4158ab3978425d517fafd16d

SHA256
d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

SHA512
33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ED.exe
Filesize
315KB

MD5
af968e0f2d75d8d4a464945ad5d86c9a

SHA1
6d2443b5b0121eb6c31367f6fafe340522be3a09

SHA256
744d4ef48ab5a84c8daf5a65b63be366bc18bd3662ba54c5e4184a8ad1bb4f46

SHA512
a9d9ad8462e18adfd7aa109dc66a01d99d82d925839936c6203cdbd820a4ab9422bed2b82acbedf49f9a4ffe752f2f2362c8a8e058ab9e4cc10bb01cdeb4bcdd

Download Submit
C:\Users\Admin\AppData\Roaming\hwfaieb
Filesize
226KB

MD5
dcfd9f02149a657f70ed4e58f5c71d74

SHA1
93140ba9a84c78ee3a4aece21c0d832e334efb2a

SHA256
a215b76c38d79ec3764923d2f17a5ccd06ac6741de5d2c0183fead43836db210

SHA512
5d9ba4c29bb1cdcd68acb82bf053804a5f07a6dbaa000fd82577b283823467324316c53d5be61c8e2ca4b0d67b98d249e7c36d67da94fa36e4e2265e4386003d

Download Submit
memory/960-55-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/1092-65-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/1352-4-0x0000000002EC0000-0x0000000002ED6000-memory.dmp

Filesize
88KB

Download
memory/1352-47-0x0000000002EA0000-0x0000000002EA1000-memory.dmp

Filesize
4KB

Download
memory/1656-54-0x0000000002620000-0x0000000002636000-memory.dmp

Filesize
88KB

Download
memory/1656-66-0x0000000004170000-0x0000000004180000-memory.dmp

Filesize
64KB

Download
memory/2372-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2372-5-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/2372-2-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/2372-1-0x0000000000830000-0x0000000000930000-memory.dmp

Filesize
1024KB

Download
memory/2372-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads