smokeloader | 3376c1fa588b46cf076834a5b6e82d7a1345a4efbeea044dad2f6ae3a1c9b523

Analysis

max time kernel
150s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2022, 17:35

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General

Target

048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
Size

230KB
MD5

86a1badfd643c574eb49a7e16e541292
SHA1

d28c39dde6d6b4ce9bfc4c7f505bc8d02b781852
SHA256

048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2
SHA512

b317a066342c9aaac02f26848ccc2812248491e7ce2ab3fdfc87e3be547ca2eb33f884f63960f10fd4f4780b52cc17766323784203210c30a0872a71cf00cff5
SSDEEP

3072:Uh0RMLL2p5PxGbqqwBuYAwVZPYsecXjLptl1A+V+Y700:uLKd57B7LRtTH4+Vl7l

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 2 IoCs

resource	yara_rule
behavioral2/memory/4928-133-0x00000000004E0000-0x00000000004E9000-memory.dmp	family_smokeloader
behavioral2/memory/1468-143-0x0000000000FE0000-0x0000000000FE7000-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
3380	ED04.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

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	048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4928	048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
4928	048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
704	Process not Found

Suspicious behavior: MapViewOfSection 19 IoCs

pid	Process
4928	048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found
704	Process not Found

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 704 wrote to memory of 3380	704	Process not Found	87
PID 704 wrote to memory of 3380	704	Process not Found	87
PID 704 wrote to memory of 3380	704	Process not Found	87
PID 704 wrote to memory of 1468	704	Process not Found	88
PID 704 wrote to memory of 1468	704	Process not Found	88
PID 704 wrote to memory of 1468	704	Process not Found	88
PID 704 wrote to memory of 1468	704	Process not Found	88
PID 704 wrote to memory of 3520	704	Process not Found	89
PID 704 wrote to memory of 3520	704	Process not Found	89
PID 704 wrote to memory of 3520	704	Process not Found	89
PID 3380 wrote to memory of 1516	3380	ED04.exe	90
PID 3380 wrote to memory of 1516	3380	ED04.exe	90
PID 3380 wrote to memory of 1516	3380	ED04.exe	90
PID 3380 wrote to memory of 3780	3380	ED04.exe	91
PID 3380 wrote to memory of 3780	3380	ED04.exe	91
PID 3380 wrote to memory of 3780	3380	ED04.exe	91
PID 3380 wrote to memory of 2172	3380	ED04.exe	92
PID 3380 wrote to memory of 2172	3380	ED04.exe	92
PID 3380 wrote to memory of 2172	3380	ED04.exe	92
PID 3380 wrote to memory of 4656	3380	ED04.exe	93
PID 3380 wrote to memory of 4656	3380	ED04.exe	93
PID 3380 wrote to memory of 4656	3380	ED04.exe	93
PID 704 wrote to memory of 3756	704	Process not Found	94
PID 704 wrote to memory of 3756	704	Process not Found	94
PID 704 wrote to memory of 3756	704	Process not Found	94
PID 704 wrote to memory of 3756	704	Process not Found	94
PID 704 wrote to memory of 1172	704	Process not Found	95
PID 704 wrote to memory of 1172	704	Process not Found	95
PID 704 wrote to memory of 1172	704	Process not Found	95
PID 704 wrote to memory of 792	704	Process not Found	96
PID 704 wrote to memory of 792	704	Process not Found	96
PID 704 wrote to memory of 792	704	Process not Found	96
PID 704 wrote to memory of 792	704	Process not Found	96
PID 704 wrote to memory of 4296	704	Process not Found	97
PID 704 wrote to memory of 4296	704	Process not Found	97
PID 704 wrote to memory of 4296	704	Process not Found	97
PID 704 wrote to memory of 4296	704	Process not Found	97
PID 704 wrote to memory of 4256	704	Process not Found	98
PID 704 wrote to memory of 4256	704	Process not Found	98
PID 704 wrote to memory of 4256	704	Process not Found	98
PID 704 wrote to memory of 4256	704	Process not Found	98
PID 704 wrote to memory of 1564	704	Process not Found	99
PID 704 wrote to memory of 1564	704	Process not Found	99
PID 704 wrote to memory of 1564	704	Process not Found	99
PID 704 wrote to memory of 2012	704	Process not Found	100
PID 704 wrote to memory of 2012	704	Process not Found	100
PID 704 wrote to memory of 2012	704	Process not Found	100
PID 704 wrote to memory of 2012	704	Process not Found	100

C:\Users\Admin\AppData\Local\Temp\048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe
"C:\Users\Admin\AppData\Local\Temp\048005548f4ff156c8a9cee922435c214e24b7a772106c8e840e36edf7776bf2.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4928

C:\Users\Admin\AppData\Local\Temp\ED04.exe
C:\Users\Admin\AppData\Local\Temp\ED04.exe
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:1516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:3780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2172
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:4656

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1468

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:3520

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:3756

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

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:792

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4296

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:4256

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1564

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

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\ED04.exe

Filesize
67KB

MD5
666d8f33d37064fd5d14e2166c9bfa69

SHA1
3b27df9335a9b2efe9da1057e9f8312a72d1ca9d

SHA256
7fddf1b75f50d43214867f367223f2d241d62ae63deea334d051c0ee19d18157

SHA512
ac3c993f019bb402db474fda65d587ae7717725eea9b3a869acd3530543b7b94d354f19474f6b1c7fc760b5b22622328def2bef26e3900c186b16e8a3d3b90df

Download Submit
C:\Users\Admin\AppData\Local\Temp\ED04.exe

Filesize
67KB

MD5
666d8f33d37064fd5d14e2166c9bfa69

SHA1
3b27df9335a9b2efe9da1057e9f8312a72d1ca9d

SHA256
7fddf1b75f50d43214867f367223f2d241d62ae63deea334d051c0ee19d18157

SHA512
ac3c993f019bb402db474fda65d587ae7717725eea9b3a869acd3530543b7b94d354f19474f6b1c7fc760b5b22622328def2bef26e3900c186b16e8a3d3b90df

Download Submit
memory/792-176-0x00000000004B0000-0x00000000004D2000-memory.dmp

Filesize
136KB

Download
memory/792-159-0x0000000000480000-0x00000000004A7000-memory.dmp

Filesize
156KB

Download
memory/792-158-0x00000000004B0000-0x00000000004D2000-memory.dmp

Filesize
136KB

Download
memory/1172-175-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

Filesize
24KB

Download
memory/1172-156-0x0000000000FE0000-0x0000000000FEC000-memory.dmp

Filesize
48KB

Download
memory/1172-155-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

Filesize
24KB

Download
memory/1468-144-0x0000000000FD0000-0x0000000000FDB000-memory.dmp

Filesize
44KB

Download
memory/1468-172-0x0000000000FE0000-0x0000000000FE7000-memory.dmp

Filesize
28KB

Download
memory/1468-143-0x0000000000FE0000-0x0000000000FE7000-memory.dmp

Filesize
28KB

Download
memory/1564-167-0x0000000000490000-0x0000000000497000-memory.dmp

Filesize
28KB

Download
memory/1564-168-0x0000000000480000-0x000000000048D000-memory.dmp

Filesize
52KB

Download
memory/1564-179-0x0000000000490000-0x0000000000497000-memory.dmp

Filesize
28KB

Download
memory/2012-171-0x0000000000FD0000-0x0000000000FDB000-memory.dmp

Filesize
44KB

Download
memory/2012-170-0x0000000000FE0000-0x0000000000FE8000-memory.dmp

Filesize
32KB

Download
memory/2012-180-0x0000000000FE0000-0x0000000000FE8000-memory.dmp

Filesize
32KB

Download
memory/3380-141-0x0000000005240000-0x00000000052A6000-memory.dmp

Filesize
408KB

Download
memory/3380-139-0x00000000008F0000-0x0000000000906000-memory.dmp

Filesize
88KB

Download
memory/3520-173-0x0000000000560000-0x0000000000569000-memory.dmp

Filesize
36KB

Download
memory/3520-146-0x0000000000550000-0x000000000055F000-memory.dmp

Filesize
60KB

Download
memory/3520-145-0x0000000000560000-0x0000000000569000-memory.dmp

Filesize
36KB

Download
memory/3756-152-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/3756-174-0x0000000000170000-0x0000000000175000-memory.dmp

Filesize
20KB

Download
memory/3756-153-0x0000000000160000-0x0000000000169000-memory.dmp

Filesize
36KB

Download
memory/4256-165-0x0000000000160000-0x000000000016B000-memory.dmp

Filesize
44KB

Download
memory/4256-164-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/4256-178-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/4296-161-0x00000000008F0000-0x00000000008F5000-memory.dmp

Filesize
20KB

Download
memory/4296-177-0x00000000008F0000-0x00000000008F5000-memory.dmp

Filesize
20KB

Download
memory/4296-162-0x00000000008E0000-0x00000000008E9000-memory.dmp

Filesize
36KB

Download
memory/4928-135-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4928-134-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4928-133-0x00000000004E0000-0x00000000004E9000-memory.dmp

Filesize
36KB

Download
memory/4928-132-0x000000000059D000-0x00000000005AD000-memory.dmp

Filesize
64KB

Download