smokeloader | b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7

Analysis

max time kernel
153s
max time network
113s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
12/02/2023, 22:41

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General

Target

b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
Size

181KB
MD5

72dfb8e19ccf73f974818c27ea3e677b
SHA1

8643c2cdf008e5f13bf455ac0ffee3979f6a5219
SHA256

b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7
SHA512

6dfbda830528be7c09c5057dae62b900d8ce4076bea8eba5a06261266b34bc97ebb29981220c41aaae0a3e0e2339d9d61d235d6575919fa4491a6166fc6f199b
SSDEEP

3072:Xg0ZtvV+5HNO19+VsG+w5p/xvlNrEBPDdIykFewWtDg:B7V0oFgvfEBPDzkY1g

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 1 IoCs

resource	yara_rule
behavioral1/memory/2176-154-0x0000000000920000-0x0000000000929000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
1748	Process not Found

Executes dropped EXE 1 IoCs

pid	Process
4048	71B5.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2176	b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
2176	b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1748	Process not Found

Suspicious behavior: MapViewOfSection 19 IoCs

pid	Process
2176	b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found
1748	Process not Found

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 4048	1748	Process not Found	66
PID 1748 wrote to memory of 4048	1748	Process not Found	66
PID 1748 wrote to memory of 4328	1748	Process not Found	67
PID 1748 wrote to memory of 4328	1748	Process not Found	67
PID 1748 wrote to memory of 4328	1748	Process not Found	67
PID 1748 wrote to memory of 4328	1748	Process not Found	67
PID 1748 wrote to memory of 3404	1748	Process not Found	68
PID 1748 wrote to memory of 3404	1748	Process not Found	68
PID 1748 wrote to memory of 3404	1748	Process not Found	68
PID 1748 wrote to memory of 1916	1748	Process not Found	69
PID 1748 wrote to memory of 1916	1748	Process not Found	69
PID 1748 wrote to memory of 1916	1748	Process not Found	69
PID 1748 wrote to memory of 1916	1748	Process not Found	69
PID 1748 wrote to memory of 3972	1748	Process not Found	70
PID 1748 wrote to memory of 3972	1748	Process not Found	70
PID 1748 wrote to memory of 3972	1748	Process not Found	70
PID 1748 wrote to memory of 4032	1748	Process not Found	71
PID 1748 wrote to memory of 4032	1748	Process not Found	71
PID 1748 wrote to memory of 4032	1748	Process not Found	71
PID 1748 wrote to memory of 4032	1748	Process not Found	71
PID 1748 wrote to memory of 4144	1748	Process not Found	72
PID 1748 wrote to memory of 4144	1748	Process not Found	72
PID 1748 wrote to memory of 4144	1748	Process not Found	72
PID 1748 wrote to memory of 4144	1748	Process not Found	72
PID 1748 wrote to memory of 5032	1748	Process not Found	73
PID 1748 wrote to memory of 5032	1748	Process not Found	73
PID 1748 wrote to memory of 5032	1748	Process not Found	73
PID 1748 wrote to memory of 5032	1748	Process not Found	73
PID 1748 wrote to memory of 1864	1748	Process not Found	74
PID 1748 wrote to memory of 1864	1748	Process not Found	74
PID 1748 wrote to memory of 1864	1748	Process not Found	74
PID 1748 wrote to memory of 1172	1748	Process not Found	75
PID 1748 wrote to memory of 1172	1748	Process not Found	75
PID 1748 wrote to memory of 1172	1748	Process not Found	75
PID 1748 wrote to memory of 1172	1748	Process not Found	75

C:\Users\Admin\AppData\Local\Temp\b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe
"C:\Users\Admin\AppData\Local\Temp\b05e642fdd869ac31678cbe8ec8e869845c5cb9dbc257854efff248f00facae7.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2176

C:\Users\Admin\AppData\Local\Temp\71B5.exe
C:\Users\Admin\AppData\Local\Temp\71B5.exe
1⤵
- Executes dropped EXE
PID:4048

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4328

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3404

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1916

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3972

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4032

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4144

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:5032

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1864

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1172

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\71B5.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
C:\Users\Admin\AppData\Local\Temp\71B5.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
memory/1172-519-0x0000000000DA0000-0x0000000000DAB000-memory.dmp

Filesize
44KB

Download
memory/1172-518-0x0000000000DB0000-0x0000000000DB8000-memory.dmp

Filesize
32KB

Download
memory/1172-526-0x0000000000DB0000-0x0000000000DB8000-memory.dmp

Filesize
32KB

Download
memory/1864-443-0x0000000000770000-0x000000000077D000-memory.dmp

Filesize
52KB

Download
memory/1864-442-0x0000000000780000-0x0000000000787000-memory.dmp

Filesize
28KB

Download
memory/1864-523-0x0000000000780000-0x0000000000787000-memory.dmp

Filesize
28KB

Download
memory/1916-358-0x0000000000D80000-0x0000000000D89000-memory.dmp

Filesize
36KB

Download
memory/1916-310-0x0000000000D90000-0x0000000000D95000-memory.dmp

Filesize
20KB

Download
memory/2176-133-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-155-0x0000000000400000-0x0000000000789000-memory.dmp

Filesize
3.5MB

Download
memory/2176-135-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-136-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-137-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-138-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-139-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-140-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-141-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-142-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-143-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-145-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-146-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-147-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-148-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-149-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-150-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-151-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-153-0x0000000000790000-0x000000000083E000-memory.dmp

Filesize
696KB

Download
memory/2176-152-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-154-0x0000000000920000-0x0000000000929000-memory.dmp

Filesize
36KB

Download
memory/2176-134-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-156-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-157-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-158-0x0000000000400000-0x0000000000789000-memory.dmp

Filesize
3.5MB

Download
memory/2176-121-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-132-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-131-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-130-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-120-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-129-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-128-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-127-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-126-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-125-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-124-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-123-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/2176-122-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/3404-520-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/3404-185-0x00000000003E0000-0x00000000003EF000-memory.dmp

Filesize
60KB

Download
memory/3404-183-0x00000000003F0000-0x00000000003F9000-memory.dmp

Filesize
36KB

Download
memory/3972-238-0x0000000000BB0000-0x0000000000BB6000-memory.dmp

Filesize
24KB

Download
memory/3972-240-0x0000000000BA0000-0x0000000000BAC000-memory.dmp

Filesize
48KB

Download
memory/3972-521-0x0000000000BB0000-0x0000000000BB6000-memory.dmp

Filesize
24KB

Download
memory/4032-362-0x0000000000C70000-0x0000000000C97000-memory.dmp

Filesize
156KB

Download
memory/4032-522-0x0000000000CA0000-0x0000000000CC2000-memory.dmp

Filesize
136KB

Download
memory/4032-360-0x0000000000CA0000-0x0000000000CC2000-memory.dmp

Filesize
136KB

Download
memory/4048-162-0x0000000000E70000-0x0000000000E78000-memory.dmp

Filesize
32KB

Download
memory/4144-447-0x0000000000A10000-0x0000000000A15000-memory.dmp

Filesize
20KB

Download
memory/4144-450-0x0000000000A00000-0x0000000000A09000-memory.dmp

Filesize
36KB

Download
memory/4144-524-0x0000000000A10000-0x0000000000A15000-memory.dmp

Filesize
20KB

Download
memory/4328-193-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-165-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-196-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-192-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-173-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-190-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-191-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-189-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-194-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-172-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-178-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-188-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-305-0x00000000001F0000-0x00000000001F7000-memory.dmp

Filesize
28KB

Download
memory/4328-171-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-182-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-170-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-356-0x00000000001E0000-0x00000000001EB000-memory.dmp

Filesize
44KB

Download
memory/4328-184-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-187-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-179-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-168-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-169-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-186-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-167-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-166-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-174-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-176-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-180-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-195-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-164-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-175-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/4328-181-0x0000000077840000-0x00000000779CE000-memory.dmp

Filesize
1.6MB

Download
memory/5032-517-0x00000000009C0000-0x00000000009CB000-memory.dmp

Filesize
44KB

Download
memory/5032-515-0x00000000009D0000-0x00000000009D6000-memory.dmp

Filesize
24KB

Download
memory/5032-525-0x00000000009D0000-0x00000000009D6000-memory.dmp

Filesize
24KB

Download