smokeloader | 4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 01:17

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General

Target

4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe
Size

975KB
MD5

c10cc05f3b3d59c92b1ae9cd99246cb8
SHA1

cea0bad5af7ab2ea03da693f3857b65a46dab466
SHA256

4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59
SHA512

6c376226cfab1ecabb37da2905ef902fa330a82a9e242114b3a431272dab4bd2166ec86a1ec3082656639307c4d1c9f5e697f30806c5ff9d6b6784e47004ad26
SSDEEP

12288:v+MGl+GaMWxv1rA69EqPo3La38yUhsGdxZ66ciFOFKXz9BUal9pU9b9JfyV0RSbq:JGaMsv1r7D6Lasya6pFyBUmU9nu1b9s

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2776 set thread context of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.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	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe
Token: SeDebugPrivilege	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87
PID 2776 wrote to memory of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87
PID 2776 wrote to memory of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87
PID 2776 wrote to memory of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87
PID 2776 wrote to memory of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87
PID 2776 wrote to memory of 3868	2776	4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe	87

C:\Users\Admin\AppData\Local\Temp\4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe
"C:\Users\Admin\AppData\Local\Temp\4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Users\Admin\AppData\Local\Temp\4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe
  "C:\Users\Admin\AppData\Local\Temp\4b27fd5c70588d922a25f658f35d5c5d3e0085ba88d9bb9b25746c52b2b58e59.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:3868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2776-20-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-52-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-2-0x0000000005730000-0x0000000005812000-memory.dmp

Filesize
904KB

Download
memory/2776-12-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-66-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-64-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-62-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-58-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-57-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/2776-22-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-50-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-48-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-44-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-42-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-40-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-38-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-36-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-32-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-30-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-28-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-26-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-1-0x0000000000BE0000-0x0000000000CDA000-memory.dmp

Filesize
1000KB

Download
memory/2776-24-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-54-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-18-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-16-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-14-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-10-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-60-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-8-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-46-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-34-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-6-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-4-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-3-0x0000000005730000-0x000000000580B000-memory.dmp

Filesize
876KB

Download
memory/2776-1075-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2776-1076-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2776-1077-0x00000000056C0000-0x000000000571C000-memory.dmp

Filesize
368KB

Download
memory/2776-1078-0x0000000005830000-0x000000000587C000-memory.dmp

Filesize
304KB

Download
memory/2776-1079-0x00000000061F0000-0x0000000006794000-memory.dmp

Filesize
5.6MB

Download
memory/2776-1080-0x0000000005940000-0x0000000005994000-memory.dmp

Filesize
336KB

Download
memory/2776-1084-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2776-1085-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2776-1086-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2776-1090-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/3868-1089-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/3868-1088-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download