smokeloader | 77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be

Analysis

max time kernel
151s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 06:07

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General

Target

77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
Size

269KB
MD5

2c28e4d5c442288c06720e825064200f
SHA1

0b3378466febe7acffee98a17db3a6c1a3e65393
SHA256

77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be
SHA512

b957c2a04a7be72c03df272a0381d9e098d6bd047f8cbbedb6fb38f9a8b906c38c14bcd5f9940ab5bc1f86d59e85c0feaeff064d39775927a4a2d333b3a8d4a9
SSDEEP

3072:hdPQF2YPMOjAj7LWM81cvCLmfBpq3WLFHnk1A6jHRKv//aT/lmhU:3rYvjAPLWPma3QHnp0NTf

Score

10^/10

smokeloader sprg backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

sprg

Extracted

Family

smokeloader

Version

2022

http://hoh0aeghwugh2gie.com/

http://hie7doodohpae4na.com/

http://aek0aicifaloh1yo.com/

http://yic0oosaeiy7ahng.com/

http://wa5zu7sekai8xeih.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 1 IoCs

Processes:

whfwjwu

pid process

2452 whfwjwu

pid	process
2452	whfwjwu

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:

77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exewhfwjwu

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	whfwjwu
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	whfwjwu
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	whfwjwu

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe

pid	process
4592	77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
4592	77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3172

pid	process
3172

Suspicious behavior: MapViewOfSection 20 IoCs

Processes:

77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exewhfwjwu

pid	process
4592	77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
3172
2452	whfwjwu

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	3172
Token: SeCreatePagefilePrivilege	3172
Token: SeShutdownPrivilege	3172
Token: SeCreatePagefilePrivilege	3172
Token: SeShutdownPrivilege	3172
Token: SeCreatePagefilePrivilege	3172
Token: SeShutdownPrivilege	3172
Token: SeCreatePagefilePrivilege	3172

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

description	pid	target process
PID 3172 wrote to memory of 8	3172	explorer.exe
PID 3172 wrote to memory of 8	3172	explorer.exe
PID 3172 wrote to memory of 8	3172	explorer.exe
PID 3172 wrote to memory of 8	3172	explorer.exe
PID 3172 wrote to memory of 2276	3172	explorer.exe
PID 3172 wrote to memory of 2276	3172	explorer.exe
PID 3172 wrote to memory of 2276	3172	explorer.exe
PID 3172 wrote to memory of 1436	3172	explorer.exe
PID 3172 wrote to memory of 1436	3172	explorer.exe
PID 3172 wrote to memory of 1436	3172	explorer.exe
PID 3172 wrote to memory of 1436	3172	explorer.exe
PID 3172 wrote to memory of 3128	3172	explorer.exe
PID 3172 wrote to memory of 3128	3172	explorer.exe
PID 3172 wrote to memory of 3128	3172	explorer.exe
PID 3172 wrote to memory of 3000	3172	explorer.exe
PID 3172 wrote to memory of 3000	3172	explorer.exe
PID 3172 wrote to memory of 3000	3172	explorer.exe
PID 3172 wrote to memory of 3000	3172	explorer.exe
PID 3172 wrote to memory of 4560	3172	explorer.exe
PID 3172 wrote to memory of 4560	3172	explorer.exe
PID 3172 wrote to memory of 4560	3172	explorer.exe
PID 3172 wrote to memory of 4560	3172	explorer.exe
PID 3172 wrote to memory of 2804	3172	explorer.exe
PID 3172 wrote to memory of 2804	3172	explorer.exe
PID 3172 wrote to memory of 2804	3172	explorer.exe
PID 3172 wrote to memory of 2804	3172	explorer.exe
PID 3172 wrote to memory of 3368	3172	explorer.exe
PID 3172 wrote to memory of 3368	3172	explorer.exe
PID 3172 wrote to memory of 3368	3172	explorer.exe
PID 3172 wrote to memory of 3144	3172	explorer.exe
PID 3172 wrote to memory of 3144	3172	explorer.exe
PID 3172 wrote to memory of 3144	3172	explorer.exe
PID 3172 wrote to memory of 3144	3172	explorer.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\77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe
"C:\Users\Admin\AppData\Local\Temp\77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4592

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:8

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2276

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1436

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3128

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3000

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4560

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2804

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3368

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3144

C:\Users\Admin\AppData\Roaming\whfwjwu
C:\Users\Admin\AppData\Roaming\whfwjwu
1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2452

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\whfwjwu
Filesize
269KB

MD5
2c28e4d5c442288c06720e825064200f

SHA1
0b3378466febe7acffee98a17db3a6c1a3e65393

SHA256
77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be

SHA512
b957c2a04a7be72c03df272a0381d9e098d6bd047f8cbbedb6fb38f9a8b906c38c14bcd5f9940ab5bc1f86d59e85c0feaeff064d39775927a4a2d333b3a8d4a9

Download Submit
C:\Users\Admin\AppData\Roaming\whfwjwu
Filesize
269KB

MD5
2c28e4d5c442288c06720e825064200f

SHA1
0b3378466febe7acffee98a17db3a6c1a3e65393

SHA256
77739c5d6a6613fb8d477ca5a79ffd35667a8a6139c8c2bcbf0dfd8865d137be

SHA512
b957c2a04a7be72c03df272a0381d9e098d6bd047f8cbbedb6fb38f9a8b906c38c14bcd5f9940ab5bc1f86d59e85c0feaeff064d39775927a4a2d333b3a8d4a9

Download Submit
memory/8-189-0x0000000002E10000-0x0000000002E19000-memory.dmp

Filesize
36KB

Download
memory/8-146-0x00000000005C0000-0x00000000005CB000-memory.dmp

Filesize
44KB

Download
memory/8-147-0x0000000002E10000-0x0000000002E19000-memory.dmp

Filesize
36KB

Download
memory/8-148-0x00000000005C0000-0x00000000005CB000-memory.dmp

Filesize
44KB

Download
memory/1436-153-0x0000000000EE0000-0x0000000000EEF000-memory.dmp

Filesize
60KB

Download
memory/1436-191-0x0000000000EE0000-0x0000000000EEF000-memory.dmp

Filesize
60KB

Download
memory/1436-154-0x0000000001030000-0x0000000001039000-memory.dmp

Filesize
36KB

Download
memory/1436-152-0x0000000001030000-0x0000000001039000-memory.dmp

Filesize
36KB

Download
memory/2276-150-0x00000000005C0000-0x00000000005CB000-memory.dmp

Filesize
44KB

Download
memory/2276-151-0x0000000000EE0000-0x0000000000EEF000-memory.dmp

Filesize
60KB

Download
memory/2276-190-0x00000000005C0000-0x00000000005CB000-memory.dmp

Filesize
44KB

Download
memory/2276-149-0x0000000000EE0000-0x0000000000EEF000-memory.dmp

Filesize
60KB

Download
memory/2452-219-0x0000000000400000-0x0000000002B71000-memory.dmp

Filesize
39.4MB

Download
memory/2804-195-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/2804-181-0x0000000000B20000-0x0000000000B2B000-memory.dmp

Filesize
44KB

Download
memory/2804-182-0x0000000000B20000-0x0000000000B2B000-memory.dmp

Filesize
44KB

Download
memory/3000-159-0x00000000001D0000-0x00000000001DC000-memory.dmp

Filesize
48KB

Download
memory/3000-160-0x0000000000B20000-0x0000000000B47000-memory.dmp

Filesize
156KB

Download
memory/3000-158-0x0000000000B20000-0x0000000000B47000-memory.dmp

Filesize
156KB

Download
memory/3000-192-0x00000000001D0000-0x00000000001DC000-memory.dmp

Filesize
48KB

Download
memory/3128-157-0x00000000001D0000-0x00000000001DC000-memory.dmp

Filesize
48KB

Download
memory/3128-156-0x0000000001030000-0x0000000001039000-memory.dmp

Filesize
36KB

Download
memory/3128-155-0x00000000001D0000-0x00000000001DC000-memory.dmp

Filesize
48KB

Download
memory/3144-188-0x00000000012C0000-0x00000000012CB000-memory.dmp

Filesize
44KB

Download
memory/3144-187-0x0000000000310000-0x000000000031D000-memory.dmp

Filesize
52KB

Download
memory/3144-186-0x00000000012C0000-0x00000000012CB000-memory.dmp

Filesize
44KB

Download
memory/3172-180-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/3172-205-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-173-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-174-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-175-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-176-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-177-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-178-0x0000000008280000-0x0000000008290000-memory.dmp

Filesize
64KB

Download
memory/3172-135-0x0000000003280000-0x0000000003296000-memory.dmp

Filesize
88KB

Download
memory/3172-216-0x0000000001510000-0x0000000001526000-memory.dmp

Filesize
88KB

Download
memory/3172-171-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-170-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-161-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-212-0x00000000012C0000-0x00000000012CB000-memory.dmp

Filesize
44KB

Download
memory/3172-211-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-169-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-210-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-167-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-166-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-165-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-164-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-163-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-193-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/3172-194-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/3172-162-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-196-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-197-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-198-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-199-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-200-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-201-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-202-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-203-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-204-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-172-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-206-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-207-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-208-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3172-209-0x0000000008270000-0x0000000008280000-memory.dmp

Filesize
64KB

Download
memory/3368-185-0x0000000000310000-0x000000000031D000-memory.dmp

Filesize
52KB

Download
memory/3368-184-0x0000000000B20000-0x0000000000B2B000-memory.dmp

Filesize
44KB

Download
memory/3368-183-0x0000000000310000-0x000000000031D000-memory.dmp

Filesize
52KB

Download
memory/4560-168-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/4560-179-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/4592-136-0x0000000000400000-0x0000000002B71000-memory.dmp

Filesize
39.4MB

Download
memory/4592-134-0x0000000002E10000-0x0000000002E19000-memory.dmp

Filesize
36KB

Download