smokeloader | 18ba1702f630dcc4338ebca9353a0568517e34cb910a9fdaced98efd3933e2e5

Analysis

max time kernel
140s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16-08-2024 15:38

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General

Target

9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe
Size

116KB
MD5

9ef4e2013dd741e33d122fa52e5e000e
SHA1

136e52ae787a975f0bd5960848fb4850fc91b77d
SHA256

18ba1702f630dcc4338ebca9353a0568517e34cb910a9fdaced98efd3933e2e5
SHA512

f0af679b12d8c432bdf642a34e558ca26df7b51958b31908fcc76a62221b534370d1bb4392079dd335739067991c1abb0e409f20e6bd6cfbe057bbc20e30c46d
SSDEEP

3072:oj4322JYYmDO53jEubLiLBwLPlUBEqW3wF/vA0n:o0GGYdDO91iwzl5HwFvA0

Score

10^/10

smokeloader sa2 backdoor persistence trojan

Malware Config

Extracted

Family

smokeloader

Botnet

SA2

Signatures

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

Core1 .NET packer 1 IoCs

Detects packer/loader used by .NET malware.

resource	yara_rule
behavioral2/memory/2452-3-0x0000000000FB0000-0x0000000000FC4000-memory.dmp	Core1

Loads dropped DLL 1 IoCs

pid	Process
3928	svchost.exe

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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost.exe = "C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe"	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2452 set thread context of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86
PID 2452 wrote to memory of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86
PID 2452 wrote to memory of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86
PID 2452 wrote to memory of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86
PID 2452 wrote to memory of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86
PID 2452 wrote to memory of 3928	2452	9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9ef4e2013dd741e33d122fa52e5e000e_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2452
- C:\Windows\SysWow64\svchost.exe
  "C:\\Windows\\SysWow64\\svchost.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:3928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\D8E6.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/2452-0-0x00007FFACED13000-0x00007FFACED15000-memory.dmp

Filesize
8KB

Download
memory/2452-1-0x00000000005D0000-0x00000000005F2000-memory.dmp

Filesize
136KB

Download
memory/2452-2-0x0000000000F90000-0x0000000000FA4000-memory.dmp

Filesize
80KB

Download
memory/2452-3-0x0000000000FB0000-0x0000000000FC4000-memory.dmp

Filesize
80KB

Download
memory/2452-4-0x0000000001060000-0x0000000001068000-memory.dmp

Filesize
32KB

Download
memory/2452-5-0x0000000001070000-0x000000000107A000-memory.dmp

Filesize
40KB

Download
memory/2452-10-0x00007FFACED10000-0x00007FFACF7D1000-memory.dmp

Filesize
10.8MB

Download
memory/2452-16-0x00007FFACED10000-0x00007FFACF7D1000-memory.dmp

Filesize
10.8MB

Download
memory/3928-6-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3928-11-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3928-15-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads