smokeloader | 47a20ebc7f81cc8b99991644291d40b89c376f8fb820099317f6dca973f74063

Analysis

max time kernel
153s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2023, 17:46

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General

Target

c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
Size

188KB
MD5

c090995b6f5d9aa37dbdfe0aa1cf7d83
SHA1

94c430817d92e665844bd4d44a8a7f16bdebbb13
SHA256

47a20ebc7f81cc8b99991644291d40b89c376f8fb820099317f6dca973f74063
SHA512

98e2de32e2daafc86b603d7fba266469e21ed09428a61c2eb15c6ed7890239a4adcecb905b401f168a3f749b0ff520b5277224a2bde2f6655cd0db977b9d93b6
SSDEEP

3072:R7wvP+rGmn56ZVgbwcnVygHXTlRmPAbC7rplto:FGLN4scTX5shl

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 1 IoCs

resource	yara_rule
behavioral2/memory/704-133-0x00000000024C0000-0x00000000024C9000-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
4768	BB03.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	c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c090995b6f5d9aa37dbdfe0aa1cf7d83.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
704	c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
704	c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3060	Process not Found

Suspicious behavior: MapViewOfSection 19 IoCs

pid	Process
704	c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found
3060	Process not Found

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 4768	3060	Process not Found	86
PID 3060 wrote to memory of 4768	3060	Process not Found	86
PID 3060 wrote to memory of 4164	3060	Process not Found	87
PID 3060 wrote to memory of 4164	3060	Process not Found	87
PID 3060 wrote to memory of 4164	3060	Process not Found	87
PID 3060 wrote to memory of 4164	3060	Process not Found	87
PID 3060 wrote to memory of 2544	3060	Process not Found	88
PID 3060 wrote to memory of 2544	3060	Process not Found	88
PID 3060 wrote to memory of 2544	3060	Process not Found	88
PID 3060 wrote to memory of 4472	3060	Process not Found	89
PID 3060 wrote to memory of 4472	3060	Process not Found	89
PID 3060 wrote to memory of 4472	3060	Process not Found	89
PID 3060 wrote to memory of 4472	3060	Process not Found	89
PID 3060 wrote to memory of 1976	3060	Process not Found	90
PID 3060 wrote to memory of 1976	3060	Process not Found	90
PID 3060 wrote to memory of 1976	3060	Process not Found	90
PID 3060 wrote to memory of 1968	3060	Process not Found	91
PID 3060 wrote to memory of 1968	3060	Process not Found	91
PID 3060 wrote to memory of 1968	3060	Process not Found	91
PID 3060 wrote to memory of 1968	3060	Process not Found	91
PID 3060 wrote to memory of 2772	3060	Process not Found	92
PID 3060 wrote to memory of 2772	3060	Process not Found	92
PID 3060 wrote to memory of 2772	3060	Process not Found	92
PID 3060 wrote to memory of 2772	3060	Process not Found	92
PID 3060 wrote to memory of 4712	3060	Process not Found	93
PID 3060 wrote to memory of 4712	3060	Process not Found	93
PID 3060 wrote to memory of 4712	3060	Process not Found	93
PID 3060 wrote to memory of 4712	3060	Process not Found	93
PID 3060 wrote to memory of 1580	3060	Process not Found	94
PID 3060 wrote to memory of 1580	3060	Process not Found	94
PID 3060 wrote to memory of 1580	3060	Process not Found	94
PID 3060 wrote to memory of 4848	3060	Process not Found	95
PID 3060 wrote to memory of 4848	3060	Process not Found	95
PID 3060 wrote to memory of 4848	3060	Process not Found	95
PID 3060 wrote to memory of 4848	3060	Process not Found	95

C:\Users\Admin\AppData\Local\Temp\c090995b6f5d9aa37dbdfe0aa1cf7d83.exe
"C:\Users\Admin\AppData\Local\Temp\c090995b6f5d9aa37dbdfe0aa1cf7d83.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:704

C:\Users\Admin\AppData\Local\Temp\BB03.exe
C:\Users\Admin\AppData\Local\Temp\BB03.exe
1⤵
- Executes dropped EXE
PID:4768

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4164

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:2544

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4472

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1976

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1968

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2772

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4712

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1580

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4848

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\BB03.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
C:\Users\Admin\AppData\Local\Temp\BB03.exe

Filesize
4KB

MD5
9748489855d9dd82ab09da5e3e55b19e

SHA1
6ed2bf6a1a53a59cd2137812cb43b5032817f6a1

SHA256
05bdd09d934144589f7b90ac4ef6e8d7743c35f551219d98bc7fc933f98a157b

SHA512
7eebbc3e42aad1af304ba38ca0c74e5f2293a630d98d4cfd48957f5f288bcb52cf323421c2b166e3b459450d5ef024167f8729b7b4b66651a34c3c3d4581a2be

Download Submit
memory/704-133-0x00000000024C0000-0x00000000024C9000-memory.dmp

Filesize
36KB

Download
memory/704-134-0x0000000000400000-0x000000000078B000-memory.dmp

Filesize
3.5MB

Download
memory/704-135-0x0000000000400000-0x000000000078B000-memory.dmp

Filesize
3.5MB

Download
memory/704-132-0x000000000086E000-0x0000000000884000-memory.dmp

Filesize
88KB

Download
memory/1580-164-0x0000000000AC0000-0x0000000000ACD000-memory.dmp

Filesize
52KB

Download
memory/1580-163-0x0000000000AD0000-0x0000000000AD7000-memory.dmp

Filesize
28KB

Download
memory/1580-175-0x0000000000AD0000-0x0000000000AD7000-memory.dmp

Filesize
28KB

Download
memory/1968-172-0x0000000000500000-0x0000000000522000-memory.dmp

Filesize
136KB

Download
memory/1968-155-0x00000000004D0000-0x00000000004F7000-memory.dmp

Filesize
156KB

Download
memory/1968-154-0x0000000000500000-0x0000000000522000-memory.dmp

Filesize
136KB

Download
memory/1976-152-0x00000000004B0000-0x00000000004BC000-memory.dmp

Filesize
48KB

Download
memory/1976-151-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2544-143-0x0000000000F90000-0x0000000000F99000-memory.dmp

Filesize
36KB

Download
memory/2544-144-0x0000000000F80000-0x0000000000F8F000-memory.dmp

Filesize
60KB

Download
memory/2544-169-0x0000000000F90000-0x0000000000F99000-memory.dmp

Filesize
36KB

Download
memory/2772-157-0x0000000000330000-0x0000000000335000-memory.dmp

Filesize
20KB

Download
memory/2772-158-0x0000000000320000-0x0000000000329000-memory.dmp

Filesize
36KB

Download
memory/2772-173-0x0000000000330000-0x0000000000335000-memory.dmp

Filesize
20KB

Download
memory/4164-146-0x0000000000CC0000-0x0000000000CC7000-memory.dmp

Filesize
28KB

Download
memory/4164-147-0x0000000000CB0000-0x0000000000CBB000-memory.dmp

Filesize
44KB

Download
memory/4164-170-0x0000000000CC0000-0x0000000000CC7000-memory.dmp

Filesize
28KB

Download
memory/4472-148-0x0000000000DC0000-0x0000000000DC5000-memory.dmp

Filesize
20KB

Download
memory/4472-149-0x0000000000DB0000-0x0000000000DB9000-memory.dmp

Filesize
36KB

Download
memory/4472-171-0x0000000000DC0000-0x0000000000DC5000-memory.dmp

Filesize
20KB

Download
memory/4712-161-0x0000000000CB0000-0x0000000000CBB000-memory.dmp

Filesize
44KB

Download
memory/4712-160-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

Filesize
24KB

Download
memory/4712-174-0x0000000000CC0000-0x0000000000CC6000-memory.dmp

Filesize
24KB

Download
memory/4768-168-0x00007FF9F3360000-0x00007FF9F3E21000-memory.dmp

Filesize
10.8MB

Download
memory/4768-140-0x00007FF9F3360000-0x00007FF9F3E21000-memory.dmp

Filesize
10.8MB

Download
memory/4768-139-0x0000000000D50000-0x0000000000D58000-memory.dmp

Filesize
32KB

Download
memory/4848-166-0x0000000000CC0000-0x0000000000CC8000-memory.dmp

Filesize
32KB

Download
memory/4848-167-0x0000000000CB0000-0x0000000000CBB000-memory.dmp

Filesize
44KB

Download
memory/4848-176-0x0000000000CC0000-0x0000000000CC8000-memory.dmp

Filesize
32KB

Download