smokeloader | 90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b

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
08-09-2024 03:27

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General

Target

90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Size

2.3MB
MD5

2d1fc8d83178bbbe12c246412224dc12
SHA1

c573fab55dab8527b94e2679cdd4d97192c12601
SHA256

90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b
SHA512

2ea5faf7fb6feab88694ee67b75e1b7b5544e995820d87c2453a9010c890a64165e51581c3dd6fc1029551ac6aa35cf5004c658ccf037f3cb94476b6dd4656e7
SSDEEP

49152:oDrqDD6k5mlz7mjIbO7SXxRJd+2mY09ZlAONpv1A5H:tt5k3mF7SXxRz+2lavWH

Score

10^/10

smokeloader backdoor discovery execution persistence spyware stealer trojan

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	km111.exe

Executes dropped EXE 2 IoCs

pid	Process
4976	km111.exe
4688	km111.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\km111 = "C:\\Users\\Admin\\AppData\\Roaming\\km111.exe"	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2312	powershell.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2228 set thread context of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 4976 set thread context of 4688	4976	km111.exe	88

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	km111.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	km111.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1044	PING.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	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1044	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2312	powershell.exe
2312	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Token: SeDebugPrivilege	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
Token: SeDebugPrivilege	4976	km111.exe
Token: SeDebugPrivilege	4976	km111.exe
Token: SeDebugPrivilege	4688	km111.exe
Token: SeDebugPrivilege	2312	powershell.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 4976	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	86
PID 2228 wrote to memory of 4976	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	86
PID 2228 wrote to memory of 4976	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	86
PID 2228 wrote to memory of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 2228 wrote to memory of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 2228 wrote to memory of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 2228 wrote to memory of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 2228 wrote to memory of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 2228 wrote to memory of 5596	2228	90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe	87
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4976 wrote to memory of 4688	4976	km111.exe	88
PID 4688 wrote to memory of 2312	4688	km111.exe	90
PID 4688 wrote to memory of 2312	4688	km111.exe	90
PID 4688 wrote to memory of 2312	4688	km111.exe	90
PID 4688 wrote to memory of 4308	4688	km111.exe	102
PID 4688 wrote to memory of 4308	4688	km111.exe	102
PID 4688 wrote to memory of 4308	4688	km111.exe	102
PID 4308 wrote to memory of 4564	4308	cmd.exe	104
PID 4308 wrote to memory of 4564	4308	cmd.exe	104
PID 4308 wrote to memory of 4564	4308	cmd.exe	104
PID 4308 wrote to memory of 1044	4308	cmd.exe	105
PID 4308 wrote to memory of 1044	4308	cmd.exe	105
PID 4308 wrote to memory of 1044	4308	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
"C:\Users\Admin\AppData\Local\Temp\90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\km111.exe
  "C:\Users\Admin\AppData\Local\Temp\km111.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4976
- - C:\Users\Admin\AppData\Local\Temp\km111.exe
    "C:\Users\Admin\AppData\Local\Temp\km111.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4688
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'km111';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'km111' -Value '"C:\Users\Admin\AppData\Roaming\km111.exe"' -PropertyType 'String'
      4⤵
      Adds Run key to start application
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2312
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\737Om2dQpADE.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4308
    - - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4564
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping -n 5 localhost
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:1044
- C:\Users\Admin\AppData\Local\Temp\90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe
  "C:\Users\Admin\AppData\Local\Temp\90d841da88320cac9daa43c1af2de6e5e1156cb44727c2fc1121e33ce6c7543b.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:5596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\737Om2dQpADE.bat

Filesize
171B

MD5
6a388996c60b3fc30af0a730643feed1

SHA1
3e894b13e82bb735b0f5f17e20b2995d33055db7

SHA256
a9e91010f04be6361fb1a17683ded56b8c356cb1a3536d849e6cad485745bb3f

SHA512
2fdaad55c8b8585fd82af902db8c5b4878d308c088737dce308d0b427e42fe8c6e890ba751bda66ac3ad8bd36195aeea8ab043273e0ba975c55cad6c1c4ec8c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fbnszl1u.ozn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\km111.exe

Filesize
1.4MB

MD5
5d047c85071d16b5884a694cd1b9e339

SHA1
004ceeff566381efde2cab50ccb003a2d127b18c

SHA256
76e4e1e740d7e7317b9b66258b00723d0ef766301ccb164d09826178418c80ac

SHA512
1ad94386559b29d858f8712532ce270262ef353fc577f429bce1fd69411a6867da5323b55a77322478367a3b4907cab0299556842ca3f35cf9c547eb564630e2

Download Submit
memory/2228-1080-0x0000000005310000-0x00000000054AC000-memory.dmp

Filesize
1.6MB

Download
memory/2228-2-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2228-6-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-8-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-44-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-40-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-38-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-36-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-42-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-34-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-32-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-3-0x0000000005050000-0x0000000005270000-memory.dmp

Filesize
2.1MB

Download
memory/2228-28-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-26-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-22-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-20-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-18-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-16-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-14-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-12-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-24-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-5-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-10-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-62-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-68-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-66-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-64-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-60-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-59-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-56-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-54-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-52-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-50-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-1-0x0000000000130000-0x0000000000388000-memory.dmp

Filesize
2.3MB

Download
memory/2228-46-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-1079-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2228-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/2228-1081-0x0000000004D90000-0x0000000004DDC000-memory.dmp

Filesize
304KB

Download
memory/2228-30-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-4-0x00000000063A0000-0x00000000065C0000-memory.dmp

Filesize
2.1MB

Download
memory/2228-48-0x00000000063A0000-0x00000000065BA000-memory.dmp

Filesize
2.1MB

Download
memory/2228-1093-0x0000000007D90000-0x0000000008334000-memory.dmp

Filesize
5.6MB

Download
memory/2228-1416-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2228-1096-0x00000000054E0000-0x0000000005534000-memory.dmp

Filesize
336KB

Download
memory/2228-1231-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2228-1104-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2228-1102-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/2228-1101-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/2312-2201-0x0000000005780000-0x0000000005DA8000-memory.dmp

Filesize
6.2MB

Download
memory/2312-2217-0x0000000006AC0000-0x0000000006ADA000-memory.dmp

Filesize
104KB

Download
memory/2312-2218-0x0000000006B10000-0x0000000006B32000-memory.dmp

Filesize
136KB

Download
memory/2312-2216-0x0000000007790000-0x0000000007826000-memory.dmp

Filesize
600KB

Download
memory/2312-2215-0x0000000006600000-0x000000000664C000-memory.dmp

Filesize
304KB

Download
memory/2312-2200-0x0000000002CB0000-0x0000000002CE6000-memory.dmp

Filesize
216KB

Download
memory/2312-2214-0x00000000065E0000-0x00000000065FE000-memory.dmp

Filesize
120KB

Download
memory/2312-2213-0x0000000006280000-0x00000000065D4000-memory.dmp

Filesize
3.3MB

Download
memory/2312-2207-0x0000000005E60000-0x0000000005E82000-memory.dmp

Filesize
136KB

Download
memory/2312-2212-0x0000000006010000-0x0000000006076000-memory.dmp

Filesize
408KB

Download
memory/4688-2226-0x0000000006B10000-0x0000000006BA2000-memory.dmp

Filesize
584KB

Download
memory/4688-2221-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4688-2195-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4688-2227-0x00000000070E0000-0x00000000071CC000-memory.dmp

Filesize
944KB

Download
memory/4688-2225-0x0000000006880000-0x0000000006968000-memory.dmp

Filesize
928KB

Download
memory/4688-2196-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4688-2198-0x0000000005100000-0x00000000051BC000-memory.dmp

Filesize
752KB

Download
memory/4688-2199-0x00000000052B0000-0x0000000005316000-memory.dmp

Filesize
408KB

Download
memory/4976-1099-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-1097-0x00000000052C0000-0x00000000053EA000-memory.dmp

Filesize
1.2MB

Download
memory/4976-2191-0x0000000002E58000-0x0000000002E59000-memory.dmp

Filesize
4KB

Download
memory/4976-2192-0x0000000002D71000-0x0000000002D72000-memory.dmp

Filesize
4KB

Download
memory/4976-2184-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/4976-2197-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-1103-0x00000000054F0000-0x000000000561A000-memory.dmp

Filesize
1.2MB

Download
memory/4976-2185-0x0000000005700000-0x00000000057A6000-memory.dmp

Filesize
664KB

Download
memory/4976-1094-0x0000000000780000-0x00000000008E2000-memory.dmp

Filesize
1.4MB

Download
memory/4976-2189-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-1095-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4976-2190-0x0000000003074000-0x0000000003075000-memory.dmp

Filesize
4KB

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memory/5596-1415-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

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