smokeloader | afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb

Analysis

max time kernel
150s
max time network
152s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
21/09/2022, 15:50

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General

Target

afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
Size

174KB
MD5

c5eba2cf0f3c49b21c9bac7235dfc6ed
SHA1

5c241e9c8fbd9947b844213e0d9104ac80f18f51
SHA256

afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb
SHA512

2022b7a3f830c4acac2eca45d8200534a7570529dc59edfaff55314582b3742ad53d6f6fea4f5f276ce936aabfbc880c37c1998cbdfe115941feda43c03896d7
SSDEEP

3072:jsOENJ5YAj+EBvEcSjZNpJPIfBW8wgi8jHiM/Pk8In:L0EYuNPHh8zi

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 1 IoCs

resource	yara_rule
behavioral1/memory/1004-140-0x0000000000800000-0x0000000000809000-memory.dmp	family_smokeloader

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

Executes dropped EXE 1 IoCs

pid	Process
1608	EB3F.exe

Deletes itself 1 IoCs

pid	Process
2556	Process not Found

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\klService.exe	EB3F.exe

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	afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1004	afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
1004	afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2556	Process not Found

Suspicious behavior: MapViewOfSection 19 IoCs

pid	Process
1004	afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found
2556	Process not Found

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2556	Process not Found
Token: SeCreatePagefilePrivilege	2556	Process not Found
Token: SeShutdownPrivilege	2556	Process not Found
Token: SeCreatePagefilePrivilege	2556	Process not Found
Token: SeShutdownPrivilege	2556	Process not Found
Token: SeCreatePagefilePrivilege	2556	Process not Found
Token: SeShutdownPrivilege	2556	Process not Found
Token: SeCreatePagefilePrivilege	2556	Process not Found
Token: SeShutdownPrivilege	2556	Process not Found
Token: SeCreatePagefilePrivilege	2556	Process not Found
Token: SeShutdownPrivilege	2556	Process not Found
Token: SeCreatePagefilePrivilege	2556	Process not Found

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2556 wrote to memory of 1608	2556	Process not Found	66
PID 2556 wrote to memory of 1608	2556	Process not Found	66
PID 2556 wrote to memory of 1608	2556	Process not Found	66
PID 2556 wrote to memory of 4048	2556	Process not Found	68
PID 2556 wrote to memory of 4048	2556	Process not Found	68
PID 2556 wrote to memory of 4048	2556	Process not Found	68
PID 2556 wrote to memory of 4048	2556	Process not Found	68
PID 2556 wrote to memory of 4320	2556	Process not Found	69
PID 2556 wrote to memory of 4320	2556	Process not Found	69
PID 2556 wrote to memory of 4320	2556	Process not Found	69
PID 2556 wrote to memory of 4068	2556	Process not Found	70
PID 2556 wrote to memory of 4068	2556	Process not Found	70
PID 2556 wrote to memory of 4068	2556	Process not Found	70
PID 2556 wrote to memory of 4068	2556	Process not Found	70
PID 2556 wrote to memory of 3276	2556	Process not Found	71
PID 2556 wrote to memory of 3276	2556	Process not Found	71
PID 2556 wrote to memory of 3276	2556	Process not Found	71
PID 2556 wrote to memory of 4944	2556	Process not Found	72
PID 2556 wrote to memory of 4944	2556	Process not Found	72
PID 2556 wrote to memory of 4944	2556	Process not Found	72
PID 2556 wrote to memory of 4944	2556	Process not Found	72
PID 2556 wrote to memory of 512	2556	Process not Found	73
PID 2556 wrote to memory of 512	2556	Process not Found	73
PID 2556 wrote to memory of 512	2556	Process not Found	73
PID 2556 wrote to memory of 512	2556	Process not Found	73
PID 2556 wrote to memory of 2092	2556	Process not Found	74
PID 2556 wrote to memory of 2092	2556	Process not Found	74
PID 2556 wrote to memory of 2092	2556	Process not Found	74
PID 2556 wrote to memory of 2092	2556	Process not Found	74
PID 2556 wrote to memory of 2180	2556	Process not Found	75
PID 2556 wrote to memory of 2180	2556	Process not Found	75
PID 2556 wrote to memory of 2180	2556	Process not Found	75
PID 2556 wrote to memory of 1076	2556	Process not Found	76
PID 2556 wrote to memory of 1076	2556	Process not Found	76
PID 2556 wrote to memory of 1076	2556	Process not Found	76
PID 2556 wrote to memory of 1076	2556	Process not Found	76

C:\Users\Admin\AppData\Local\Temp\afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe
"C:\Users\Admin\AppData\Local\Temp\afa2bb3cff9920dcb6b0d92834637fba5f83d18b5dd3d1e671e27c0906ef30fb.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1004

C:\Users\Admin\AppData\Local\Temp\EB3F.exe
C:\Users\Admin\AppData\Local\Temp\EB3F.exe
1⤵
- Executes dropped EXE
- Drops startup file
PID:1608

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4048

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:4320

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4068

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3276

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4944

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:512

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2092

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2180

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1076

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\Local\Temp\EB3F.exe

Filesize
673KB

MD5
f5d8292d6fd8242ba4fca6e75a0bba6a

SHA1
e65340a69f4efe1968b1923d5a16b651b9521d54

SHA256
5169a264f46526a8332f6d13bfac8b7d7b5787be73401a66693213313c9af85f

SHA512
0962fd43e7eed93cf73a288340c6faa5ab4b4274cac7e86f125ed6f09d29c73043e223a311b21f09c29ea8f4bbfdf28eeeb75b08d948500aff980c2ffe5eb4a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\EB3F.exe

Filesize
673KB

MD5
f5d8292d6fd8242ba4fca6e75a0bba6a

SHA1
e65340a69f4efe1968b1923d5a16b651b9521d54

SHA256
5169a264f46526a8332f6d13bfac8b7d7b5787be73401a66693213313c9af85f

SHA512
0962fd43e7eed93cf73a288340c6faa5ab4b4274cac7e86f125ed6f09d29c73043e223a311b21f09c29ea8f4bbfdf28eeeb75b08d948500aff980c2ffe5eb4a3

Download Submit
memory/512-413-0x0000000002D40000-0x0000000002D45000-memory.dmp

Filesize
20KB

Download
memory/512-414-0x0000000002D30000-0x0000000002D39000-memory.dmp

Filesize
36KB

Download
memory/512-539-0x0000000002D40000-0x0000000002D45000-memory.dmp

Filesize
20KB

Download
memory/1004-149-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-121-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-123-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-124-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-125-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-126-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-127-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-128-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-129-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-130-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-131-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-132-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-133-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-134-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-135-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-136-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-137-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-138-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-139-0x00000000008A6000-0x00000000008B7000-memory.dmp

Filesize
68KB

Download
memory/1004-140-0x0000000000800000-0x0000000000809000-memory.dmp

Filesize
36KB

Download
memory/1004-141-0x0000000000400000-0x0000000000586000-memory.dmp

Filesize
1.5MB

Download
memory/1004-142-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-143-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-144-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-145-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-146-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-147-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-148-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-116-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-150-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-122-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-151-0x00000000008A6000-0x00000000008B7000-memory.dmp

Filesize
68KB

Download
memory/1004-115-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-152-0x0000000000400000-0x0000000000586000-memory.dmp

Filesize
1.5MB

Download
memory/1004-117-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-118-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-119-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1004-120-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1076-533-0x0000000002EA0000-0x0000000002EAB000-memory.dmp

Filesize
44KB

Download
memory/1076-542-0x0000000002EB0000-0x0000000002EB8000-memory.dmp

Filesize
32KB

Download
memory/1076-532-0x0000000002EB0000-0x0000000002EB8000-memory.dmp

Filesize
32KB

Download
memory/1608-174-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-181-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-169-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-166-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-172-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-170-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-176-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-179-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-158-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-164-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-156-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-157-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/1608-155-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/2092-540-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/2092-472-0x0000000002EE0000-0x0000000002EEB000-memory.dmp

Filesize
44KB

Download
memory/2092-471-0x0000000002EF0000-0x0000000002EF6000-memory.dmp

Filesize
24KB

Download
memory/2180-474-0x0000000000E00000-0x0000000000E07000-memory.dmp

Filesize
28KB

Download
memory/2180-541-0x0000000000E00000-0x0000000000E07000-memory.dmp

Filesize
28KB

Download
memory/2180-475-0x0000000000BF0000-0x0000000000BFD000-memory.dmp

Filesize
52KB

Download
memory/3276-297-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3276-537-0x0000000000C00000-0x0000000000C06000-memory.dmp

Filesize
24KB

Download
memory/3276-298-0x00000000009F0000-0x00000000009FC000-memory.dmp

Filesize
48KB

Download
memory/4048-163-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-187-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-236-0x0000000003260000-0x0000000003267000-memory.dmp

Filesize
28KB

Download
memory/4048-237-0x0000000003250000-0x000000000325B000-memory.dmp

Filesize
44KB

Download
memory/4048-167-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-165-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-171-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-160-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-185-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-182-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-178-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-161-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-535-0x0000000003260000-0x0000000003267000-memory.dmp

Filesize
28KB

Download
memory/4048-186-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-183-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-162-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-180-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-184-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-177-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-175-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4048-173-0x0000000077BF0000-0x0000000077D7E000-memory.dmp

Filesize
1.6MB

Download
memory/4068-295-0x00000000027C0000-0x00000000027C9000-memory.dmp

Filesize
36KB

Download
memory/4068-294-0x00000000027D0000-0x00000000027D5000-memory.dmp

Filesize
20KB

Download
memory/4068-536-0x00000000027D0000-0x00000000027D5000-memory.dmp

Filesize
20KB

Download
memory/4320-534-0x00000000003B0000-0x00000000003B9000-memory.dmp

Filesize
36KB

Download
memory/4320-235-0x00000000003A0000-0x00000000003AF000-memory.dmp

Filesize
60KB

Download
memory/4320-234-0x00000000003B0000-0x00000000003B9000-memory.dmp

Filesize
36KB

Download
memory/4944-538-0x0000000002F60000-0x0000000002F82000-memory.dmp

Filesize
136KB

Download
memory/4944-356-0x0000000002F30000-0x0000000002F57000-memory.dmp

Filesize
156KB

Download
memory/4944-355-0x0000000002F60000-0x0000000002F82000-memory.dmp

Filesize
136KB

Download