smokeloader | f32b45f52b74d6f4366cbe3316a6c0236cb25f851a704ee33edfa9e0d929d61b

Analysis

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

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2022 04:38

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General

Target

file.exe
Size

228KB
MD5

e0143094b2e79b6982f24adc25390231
SHA1

ede56a09454c728ef81b6829f8d56859a018e97d
SHA256

f32b45f52b74d6f4366cbe3316a6c0236cb25f851a704ee33edfa9e0d929d61b
SHA512

12c80d325c7f57bf8e503c1ccd6853a95c1ad8ca4f99caf302d4e2166759e186c440a44d652f8b4f39a25d275cd9531581e33aed66879c9706397069a9fa00f5
SSDEEP

3072:Qt6FvLOyiL5i+GbuM8PRiPW7fdT2nPre+rMNCjg2/N4xMc9p+3LJVn:m+vLh8GbuMIoWf12DfMNCs2/NGELJV

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

resource	yara_rule
behavioral2/memory/3504-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/1724-135-0x00000000004C0000-0x00000000004C9000-memory.dmp	family_smokeloader
behavioral2/memory/3504-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3504-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3520-144-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3520-145-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Executes dropped EXE 2 IoCs

pid	Process
3672	ddtvjrf
3520	ddtvjrf

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1724 set thread context of 3504	1724	file.exe	82
PID 3672 set thread context of 3520	3672	ddtvjrf	91

Checks SCSI registry key(s) 3 TTPs 6 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	file.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ddtvjrf
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ddtvjrf
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ddtvjrf

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3504	file.exe
3504	file.exe
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
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2600	Process not Found
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2600	Process not Found
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2600	Process not Found
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2600	Process not Found
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2600	Process not Found
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2600	Process not Found
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2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
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2600	Process not Found
2600	Process not Found
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2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
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2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found
2600	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2600	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3504	file.exe
3520	ddtvjrf

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2600	Process not Found
Token: SeCreatePagefilePrivilege	2600	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 3504	1724	file.exe	82
PID 1724 wrote to memory of 3504	1724	file.exe	82
PID 1724 wrote to memory of 3504	1724	file.exe	82
PID 1724 wrote to memory of 3504	1724	file.exe	82
PID 1724 wrote to memory of 3504	1724	file.exe	82
PID 1724 wrote to memory of 3504	1724	file.exe	82
PID 3672 wrote to memory of 3520	3672	ddtvjrf	91
PID 3672 wrote to memory of 3520	3672	ddtvjrf	91
PID 3672 wrote to memory of 3520	3672	ddtvjrf	91
PID 3672 wrote to memory of 3520	3672	ddtvjrf	91
PID 3672 wrote to memory of 3520	3672	ddtvjrf	91
PID 3672 wrote to memory of 3520	3672	ddtvjrf	91

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3504

C:\Users\Admin\AppData\Roaming\ddtvjrf
C:\Users\Admin\AppData\Roaming\ddtvjrf
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Users\Admin\AppData\Roaming\ddtvjrf
  C:\Users\Admin\AppData\Roaming\ddtvjrf
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:3520

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\Roaming\ddtvjrf

Filesize
228KB

MD5
e0143094b2e79b6982f24adc25390231

SHA1
ede56a09454c728ef81b6829f8d56859a018e97d

SHA256
f32b45f52b74d6f4366cbe3316a6c0236cb25f851a704ee33edfa9e0d929d61b

SHA512
12c80d325c7f57bf8e503c1ccd6853a95c1ad8ca4f99caf302d4e2166759e186c440a44d652f8b4f39a25d275cd9531581e33aed66879c9706397069a9fa00f5

Download Submit
C:\Users\Admin\AppData\Roaming\ddtvjrf

Filesize
228KB

MD5
e0143094b2e79b6982f24adc25390231

SHA1
ede56a09454c728ef81b6829f8d56859a018e97d

SHA256
f32b45f52b74d6f4366cbe3316a6c0236cb25f851a704ee33edfa9e0d929d61b

SHA512
12c80d325c7f57bf8e503c1ccd6853a95c1ad8ca4f99caf302d4e2166759e186c440a44d652f8b4f39a25d275cd9531581e33aed66879c9706397069a9fa00f5

Download Submit
C:\Users\Admin\AppData\Roaming\ddtvjrf

Filesize
228KB

MD5
e0143094b2e79b6982f24adc25390231

SHA1
ede56a09454c728ef81b6829f8d56859a018e97d

SHA256
f32b45f52b74d6f4366cbe3316a6c0236cb25f851a704ee33edfa9e0d929d61b

SHA512
12c80d325c7f57bf8e503c1ccd6853a95c1ad8ca4f99caf302d4e2166759e186c440a44d652f8b4f39a25d275cd9531581e33aed66879c9706397069a9fa00f5

Download Submit
memory/1724-134-0x0000000000503000-0x0000000000514000-memory.dmp

Filesize
68KB

Download
memory/1724-135-0x00000000004C0000-0x00000000004C9000-memory.dmp

Filesize
36KB

Download
memory/3504-132-0x0000000000000000-mapping.dmp

Download
memory/3504-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3504-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3504-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3520-141-0x0000000000000000-mapping.dmp

Download
memory/3520-144-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3520-145-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download