smokeloader | 1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3

General

Target

1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
Size

297KB
MD5

7b1f8e9efd3695e7d7b9426863c210fd
SHA1

2138360299267ef49d092ef5573661ab3fe91225
SHA256

1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3
SHA512

30e00a4e7348a5f1edd5dac249dfa05b7313a6a0a84b054e0b4d54f3ecb134abed3726069cf917a868c4f5ee0210c8dc52da096999807bfc3afc5e744099ca8b
SSDEEP

3072:JbQ1zKwmBRTyzgJ4E6euMl1T11oq3aJDW6oUR1Q/bv7B8TUUTuBWvQfu:RoqBRTn4EBu2h6oEm/bjB84Pb

Score

10^/10

smokeloader sprg backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

sprg

Extracted

Family

smokeloader

Version

2022

C2

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:

hctucft

pid process

2628 hctucft

pid	process
2628	hctucft

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:

hctucft1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hctucft
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hctucft
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	hctucft
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe

pid	process
4360	1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
4360	1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
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3128
3128

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3128

pid	process
3128

Suspicious behavior: MapViewOfSection 20 IoCs

Processes:

1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exehctucft

pid	process
4360	1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
3128
3128
3128
3128
3128
3128
3128
3128
3128
3128
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3128
3128
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3128
2628	hctucft

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

description	pid	target process
PID 3128 wrote to memory of 2404	3128	explorer.exe
PID 3128 wrote to memory of 2404	3128	explorer.exe
PID 3128 wrote to memory of 2404	3128	explorer.exe
PID 3128 wrote to memory of 2404	3128	explorer.exe
PID 3128 wrote to memory of 1092	3128	explorer.exe
PID 3128 wrote to memory of 1092	3128	explorer.exe
PID 3128 wrote to memory of 1092	3128	explorer.exe
PID 3128 wrote to memory of 448	3128	explorer.exe
PID 3128 wrote to memory of 448	3128	explorer.exe
PID 3128 wrote to memory of 448	3128	explorer.exe
PID 3128 wrote to memory of 448	3128	explorer.exe
PID 3128 wrote to memory of 2444	3128	explorer.exe
PID 3128 wrote to memory of 2444	3128	explorer.exe
PID 3128 wrote to memory of 2444	3128	explorer.exe
PID 3128 wrote to memory of 852	3128	explorer.exe
PID 3128 wrote to memory of 852	3128	explorer.exe
PID 3128 wrote to memory of 852	3128	explorer.exe
PID 3128 wrote to memory of 852	3128	explorer.exe
PID 3128 wrote to memory of 3016	3128	explorer.exe
PID 3128 wrote to memory of 3016	3128	explorer.exe
PID 3128 wrote to memory of 3016	3128	explorer.exe
PID 3128 wrote to memory of 3016	3128	explorer.exe
PID 3128 wrote to memory of 3632	3128	explorer.exe
PID 3128 wrote to memory of 3632	3128	explorer.exe
PID 3128 wrote to memory of 3632	3128	explorer.exe
PID 3128 wrote to memory of 3632	3128	explorer.exe
PID 3128 wrote to memory of 2488	3128	explorer.exe
PID 3128 wrote to memory of 2488	3128	explorer.exe
PID 3128 wrote to memory of 2488	3128	explorer.exe
PID 3128 wrote to memory of 3784	3128	explorer.exe
PID 3128 wrote to memory of 3784	3128	explorer.exe
PID 3128 wrote to memory of 3784	3128	explorer.exe
PID 3128 wrote to memory of 3784	3128	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\1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe
"C:\Users\Admin\AppData\Local\Temp\1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4360

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2404

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1092

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:448

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2444

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:852

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3016

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3632

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2488

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3784

C:\Users\Admin\AppData\Roaming\hctucft
C:\Users\Admin\AppData\Roaming\hctucft
1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2628

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\hctucft
Filesize
297KB

MD5
7b1f8e9efd3695e7d7b9426863c210fd

SHA1
2138360299267ef49d092ef5573661ab3fe91225

SHA256
1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3

SHA512
30e00a4e7348a5f1edd5dac249dfa05b7313a6a0a84b054e0b4d54f3ecb134abed3726069cf917a868c4f5ee0210c8dc52da096999807bfc3afc5e744099ca8b

Download Submit
C:\Users\Admin\AppData\Roaming\hctucft
Filesize
297KB

MD5
7b1f8e9efd3695e7d7b9426863c210fd

SHA1
2138360299267ef49d092ef5573661ab3fe91225

SHA256
1173d7bd9c7ef2e080400b5636e07f7195d08b5d5ea06dd686ed3a99951c82a3

SHA512
30e00a4e7348a5f1edd5dac249dfa05b7313a6a0a84b054e0b4d54f3ecb134abed3726069cf917a868c4f5ee0210c8dc52da096999807bfc3afc5e744099ca8b

Download Submit
memory/448-153-0x00000000007D0000-0x00000000007D5000-memory.dmp

Filesize
20KB

Download
memory/448-174-0x00000000007D0000-0x00000000007D5000-memory.dmp

Filesize
20KB

Download
memory/448-154-0x00000000007C0000-0x00000000007C9000-memory.dmp

Filesize
36KB

Download
memory/448-152-0x00000000007C0000-0x00000000007C9000-memory.dmp

Filesize
36KB

Download
memory/852-176-0x0000000001080000-0x00000000010A2000-memory.dmp

Filesize
136KB

Download
memory/852-160-0x0000000001050000-0x0000000001077000-memory.dmp

Filesize
156KB

Download
memory/852-159-0x0000000001080000-0x00000000010A2000-memory.dmp

Filesize
136KB

Download
memory/852-158-0x0000000001050000-0x0000000001077000-memory.dmp

Filesize
156KB

Download
memory/1092-173-0x0000000000330000-0x0000000000339000-memory.dmp

Filesize
36KB

Download
memory/1092-151-0x0000000000320000-0x000000000032F000-memory.dmp

Filesize
60KB

Download
memory/1092-150-0x0000000000330000-0x0000000000339000-memory.dmp

Filesize
36KB

Download
memory/1092-149-0x0000000000320000-0x000000000032F000-memory.dmp

Filesize
60KB

Download
memory/2404-148-0x0000000001210000-0x000000000121B000-memory.dmp

Filesize
44KB

Download
memory/2404-146-0x0000000001210000-0x000000000121B000-memory.dmp

Filesize
44KB

Download
memory/2404-147-0x0000000001220000-0x0000000001227000-memory.dmp

Filesize
28KB

Download
memory/2404-172-0x0000000001220000-0x0000000001227000-memory.dmp

Filesize
28KB

Download
memory/2444-155-0x0000000000520000-0x000000000052C000-memory.dmp

Filesize
48KB

Download
memory/2444-157-0x0000000000520000-0x000000000052C000-memory.dmp

Filesize
48KB

Download
memory/2444-156-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2444-175-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2488-168-0x0000000000EC0000-0x0000000000ECD000-memory.dmp

Filesize
52KB

Download
memory/2488-167-0x0000000000ED0000-0x0000000000ED7000-memory.dmp

Filesize
28KB

Download
memory/2488-179-0x0000000000ED0000-0x0000000000ED7000-memory.dmp

Filesize
28KB

Download
memory/2488-166-0x0000000000EC0000-0x0000000000ECD000-memory.dmp

Filesize
52KB

Download
memory/2628-185-0x0000000000400000-0x0000000002B77000-memory.dmp

Filesize
39.5MB

Download
memory/3016-162-0x0000000000D80000-0x0000000000D89000-memory.dmp

Filesize
36KB

Download
memory/3016-177-0x0000000000D90000-0x0000000000D95000-memory.dmp

Filesize
20KB

Download
memory/3016-161-0x0000000000D80000-0x0000000000D89000-memory.dmp

Filesize
36KB

Download
memory/3128-184-0x0000000003110000-0x0000000003126000-memory.dmp

Filesize
88KB

Download
memory/3128-135-0x0000000003180000-0x0000000003196000-memory.dmp

Filesize
88KB

Download
memory/3632-178-0x0000000001110000-0x0000000001116000-memory.dmp

Filesize
24KB

Download
memory/3632-163-0x0000000001100000-0x000000000110B000-memory.dmp

Filesize
44KB

Download
memory/3632-164-0x0000000001110000-0x0000000001116000-memory.dmp

Filesize
24KB

Download
memory/3632-165-0x0000000001100000-0x000000000110B000-memory.dmp

Filesize
44KB

Download
memory/3784-171-0x0000000000D80000-0x0000000000D8B000-memory.dmp

Filesize
44KB

Download
memory/3784-180-0x0000000000D90000-0x0000000000D98000-memory.dmp

Filesize
32KB

Download
memory/3784-170-0x0000000000D90000-0x0000000000D98000-memory.dmp

Filesize
32KB

Download
memory/3784-169-0x0000000000D80000-0x0000000000D8B000-memory.dmp

Filesize
44KB

Download
memory/4360-134-0x0000000002D30000-0x0000000002D39000-memory.dmp

Filesize
36KB

Download
memory/4360-136-0x0000000000400000-0x0000000002B77000-memory.dmp

Filesize
39.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads