smokeloader | c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437

Analysis

max time kernel
150s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
05/05/2023, 14:49

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General

Target

c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
Size

291KB
MD5

67e7ed22a07e6220b155e157d7429df0
SHA1

c7cd04aa0c5164a0c4611bdb7818e032e567cc0b
SHA256

c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437
SHA512

8b6c0f6eaca57cf1ef6252d964fe86086aa3cb385e9fb57bef5708ba0d4f00588adebdea932bde04159e4ac3f26ae7a24f3afe35cfef2ed3c0677c034b958bb3
SSDEEP

3072:4ETdCVIpw0puSkAXFtB/goZF+QnOewoIUhpGnhw+1E1XtsGcJBQjC2K:bkh0JXFAknOeZpcwhXWGxjC2K

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

pid	Process
5048	juchjji

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

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	juchjji
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	juchjji
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	juchjji

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2000	c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
2000	c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3156	Process not Found

Suspicious behavior: MapViewOfSection 20 IoCs

pid	Process
2000	c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
3156	Process not Found
5048	juchjji

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 2216	3156	Process not Found	86
PID 3156 wrote to memory of 2216	3156	Process not Found	86
PID 3156 wrote to memory of 2216	3156	Process not Found	86
PID 3156 wrote to memory of 2216	3156	Process not Found	86
PID 3156 wrote to memory of 2716	3156	Process not Found	87
PID 3156 wrote to memory of 2716	3156	Process not Found	87
PID 3156 wrote to memory of 2716	3156	Process not Found	87
PID 3156 wrote to memory of 4576	3156	Process not Found	88
PID 3156 wrote to memory of 4576	3156	Process not Found	88
PID 3156 wrote to memory of 4576	3156	Process not Found	88
PID 3156 wrote to memory of 4576	3156	Process not Found	88
PID 3156 wrote to memory of 4136	3156	Process not Found	90
PID 3156 wrote to memory of 4136	3156	Process not Found	90
PID 3156 wrote to memory of 4136	3156	Process not Found	90
PID 3156 wrote to memory of 2156	3156	Process not Found	91
PID 3156 wrote to memory of 2156	3156	Process not Found	91
PID 3156 wrote to memory of 2156	3156	Process not Found	91
PID 3156 wrote to memory of 2156	3156	Process not Found	91
PID 3156 wrote to memory of 4316	3156	Process not Found	92
PID 3156 wrote to memory of 4316	3156	Process not Found	92
PID 3156 wrote to memory of 4316	3156	Process not Found	92
PID 3156 wrote to memory of 4316	3156	Process not Found	92
PID 3156 wrote to memory of 3724	3156	Process not Found	93
PID 3156 wrote to memory of 3724	3156	Process not Found	93
PID 3156 wrote to memory of 3724	3156	Process not Found	93
PID 3156 wrote to memory of 3724	3156	Process not Found	93
PID 3156 wrote to memory of 5092	3156	Process not Found	94
PID 3156 wrote to memory of 5092	3156	Process not Found	94
PID 3156 wrote to memory of 5092	3156	Process not Found	94
PID 3156 wrote to memory of 2420	3156	Process not Found	95
PID 3156 wrote to memory of 2420	3156	Process not Found	95
PID 3156 wrote to memory of 2420	3156	Process not Found	95
PID 3156 wrote to memory of 2420	3156	Process not Found	95

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\c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe
"C:\Users\Admin\AppData\Local\Temp\c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2000

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2216

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2716

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4576

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:4136

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2156

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4316

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3724

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:5092

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2420

C:\Users\Admin\AppData\Roaming\juchjji
C:\Users\Admin\AppData\Roaming\juchjji
1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:5048

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\juchjji

Filesize
291KB

MD5
67e7ed22a07e6220b155e157d7429df0

SHA1
c7cd04aa0c5164a0c4611bdb7818e032e567cc0b

SHA256
c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437

SHA512
8b6c0f6eaca57cf1ef6252d964fe86086aa3cb385e9fb57bef5708ba0d4f00588adebdea932bde04159e4ac3f26ae7a24f3afe35cfef2ed3c0677c034b958bb3

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

Filesize
291KB

MD5
67e7ed22a07e6220b155e157d7429df0

SHA1
c7cd04aa0c5164a0c4611bdb7818e032e567cc0b

SHA256
c6c8546328d6d91d3a1495875bf954e731533216df59e46bc393ce289d37e437

SHA512
8b6c0f6eaca57cf1ef6252d964fe86086aa3cb385e9fb57bef5708ba0d4f00588adebdea932bde04159e4ac3f26ae7a24f3afe35cfef2ed3c0677c034b958bb3

Download Submit
memory/2000-134-0x0000000000750000-0x0000000000759000-memory.dmp

Filesize
36KB

Download
memory/2000-137-0x0000000000400000-0x00000000006C7000-memory.dmp

Filesize
2.8MB

Download
memory/2156-158-0x0000000001110000-0x0000000001132000-memory.dmp

Filesize
136KB

Download
memory/2156-159-0x0000000000CA0000-0x0000000000CC7000-memory.dmp

Filesize
156KB

Download
memory/2156-179-0x0000000001110000-0x0000000001132000-memory.dmp

Filesize
136KB

Download
memory/2156-157-0x0000000000CA0000-0x0000000000CC7000-memory.dmp

Filesize
156KB

Download
memory/2216-147-0x0000000000B60000-0x0000000000B67000-memory.dmp

Filesize
28KB

Download
memory/2216-146-0x0000000000B50000-0x0000000000B5B000-memory.dmp

Filesize
44KB

Download
memory/2216-175-0x0000000000B60000-0x0000000000B67000-memory.dmp

Filesize
28KB

Download
memory/2216-149-0x0000000000B50000-0x0000000000B5B000-memory.dmp

Filesize
44KB

Download
memory/2420-170-0x0000000000A00000-0x0000000000A08000-memory.dmp

Filesize
32KB

Download
memory/2420-187-0x0000000000A00000-0x0000000000A08000-memory.dmp

Filesize
32KB

Download
memory/2420-171-0x00000000007F0000-0x00000000007FB000-memory.dmp

Filesize
44KB

Download
memory/2420-169-0x00000000007F0000-0x00000000007FB000-memory.dmp

Filesize
44KB

Download
memory/2716-148-0x0000000000BE0000-0x0000000000BEF000-memory.dmp

Filesize
60KB

Download
memory/2716-176-0x0000000000BF0000-0x0000000000BF9000-memory.dmp

Filesize
36KB

Download
memory/2716-150-0x0000000000BE0000-0x0000000000BEF000-memory.dmp

Filesize
60KB

Download
memory/3156-180-0x0000000002680000-0x0000000002696000-memory.dmp

Filesize
88KB

Download
memory/3156-135-0x00000000007B0000-0x00000000007C6000-memory.dmp

Filesize
88KB

Download
memory/3724-163-0x0000000000B00000-0x0000000000B0B000-memory.dmp

Filesize
44KB

Download
memory/3724-185-0x0000000000B10000-0x0000000000B16000-memory.dmp

Filesize
24KB

Download
memory/3724-164-0x0000000000B10000-0x0000000000B16000-memory.dmp

Filesize
24KB

Download
memory/3724-165-0x0000000000B00000-0x0000000000B0B000-memory.dmp

Filesize
44KB

Download
memory/4136-156-0x0000000000E90000-0x0000000000E9C000-memory.dmp

Filesize
48KB

Download
memory/4136-178-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/4136-154-0x0000000000E90000-0x0000000000E9C000-memory.dmp

Filesize
48KB

Download
memory/4136-155-0x0000000000EA0000-0x0000000000EA6000-memory.dmp

Filesize
24KB

Download
memory/4316-162-0x0000000001410000-0x0000000001419000-memory.dmp

Filesize
36KB

Download
memory/4316-160-0x0000000001410000-0x0000000001419000-memory.dmp

Filesize
36KB

Download
memory/4316-161-0x0000000001420000-0x0000000001425000-memory.dmp

Filesize
20KB

Download
memory/4316-184-0x0000000001420000-0x0000000001425000-memory.dmp

Filesize
20KB

Download
memory/4576-177-0x0000000000C10000-0x0000000000C15000-memory.dmp

Filesize
20KB

Download
memory/4576-153-0x0000000000C00000-0x0000000000C09000-memory.dmp

Filesize
36KB

Download
memory/4576-152-0x0000000000C10000-0x0000000000C15000-memory.dmp

Filesize
20KB

Download
memory/4576-151-0x0000000000C00000-0x0000000000C09000-memory.dmp

Filesize
36KB

Download
memory/5048-181-0x0000000000400000-0x00000000006C7000-memory.dmp

Filesize
2.8MB

Download
memory/5092-168-0x00000000006B0000-0x00000000006BD000-memory.dmp

Filesize
52KB

Download
memory/5092-167-0x00000000006C0000-0x00000000006C7000-memory.dmp

Filesize
28KB

Download
memory/5092-166-0x00000000006B0000-0x00000000006BD000-memory.dmp

Filesize
52KB

Download
memory/5092-186-0x00000000006C0000-0x00000000006C7000-memory.dmp

Filesize
28KB

Download