smokeloader | cf1b38106e42989ddffb99e0163787135e7b294c5d5e88e3b47ca1b7cd0d6681

Analysis

max time kernel
134s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2024 08:10

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General

Target

0x000300000001ac9e-134.exe
Size

311KB
MD5

fdde60834af109d71f4c7d28b865c8a1
SHA1

4f721105161b74e07b5ccd762d32932989bfb03a
SHA256

b0296c0000c40d59a268b223015872d7e57c427358b5e95d1bd6e4ac40dd0f87
SHA512

fecd130a4431fa81a1cf9be8019464b55bfb173dde91ced3a5828516bd51db509fd547c12dd483c00cdf5ade878ab542ffb6371238ccf960622bb464187b5778
SSDEEP

3072:eYtiwgUsQLaKw5lD5G53Nwu9YMqpyqvymEVKsEwjGCMjjjjjjjjo:vELQLaKEtG594MqpyqvyFXGCM

Score

10^/10

smokeloader 2010 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

2010

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2576	0x000300000001ac9e-134.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3908 set thread context of 2576	3908	0x000300000001ac9e-134.exe	92

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	0x000300000001ac9e-134.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	0x000300000001ac9e-134.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	0x000300000001ac9e-134.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	0x000300000001ac9e-134.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 2576	3908	0x000300000001ac9e-134.exe	92
PID 3908 wrote to memory of 2576	3908	0x000300000001ac9e-134.exe	92
PID 3908 wrote to memory of 2576	3908	0x000300000001ac9e-134.exe	92
PID 3908 wrote to memory of 2576	3908	0x000300000001ac9e-134.exe	92
PID 3908 wrote to memory of 2576	3908	0x000300000001ac9e-134.exe	92
PID 3908 wrote to memory of 2576	3908	0x000300000001ac9e-134.exe	92

C:\Users\Admin\AppData\Local\Temp\0x000300000001ac9e-134.exe
"C:\Users\Admin\AppData\Local\Temp\0x000300000001ac9e-134.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3908
- C:\Users\Admin\AppData\Local\Temp\0x000300000001ac9e-134.exe
  "C:\Users\Admin\AppData\Local\Temp\0x000300000001ac9e-134.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:2576

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

C:\Users\Admin\AppData\Local\Temp\4DD3.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/2576-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2576-3-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2576-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3908-0-0x0000000004830000-0x000000000483C000-memory.dmp

Filesize
48KB

Download
memory/3908-1-0x0000000004840000-0x000000000484D000-memory.dmp

Filesize
52KB

Download
memory/3908-4-0x0000000004830000-0x000000000483C000-memory.dmp

Filesize
48KB

Download