smokeloader | b8396317dd17bfb2f6fa9f3da511d6cff71e9813930b23b0473150d607047e81

Analysis

max time kernel
91s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/09/2024, 18:40

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General

Target

e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe
Size

311KB
MD5

51156660cde6cc1c4bb5454144a3e8b9
SHA1

ebbea15a7cd50d1d326c3ee16866c633270e10bc
SHA256

e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49
SHA512

808c94e0a664db8448ef88abd01ba9f22a6c0934f73354457ffdaf6f7b0fe4306dbd348f03d62dd0c2305bc2e8a0226ebfd9159ede90e341450d83e1e555095d
SSDEEP

6144:cBeFqeFoC7y/ug/d/7EvMmG9U/ADDuCM6yWgQc1/gd:eWFoC7Lg/R7EkmL/A3M63ZcSd

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 2560 set thread context of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88

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	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.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	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88
PID 2560 wrote to memory of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88
PID 2560 wrote to memory of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88
PID 2560 wrote to memory of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88
PID 2560 wrote to memory of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88
PID 2560 wrote to memory of 4900	2560	e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe	88

C:\Users\Admin\AppData\Local\Temp\e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe
"C:\Users\Admin\AppData\Local\Temp\e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Users\Admin\AppData\Local\Temp\e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe
  "C:\Users\Admin\AppData\Local\Temp\e6f81767f186f80d665a2ea6f81aab869a529249610e42b003909c07ac81ac49.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4900

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

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Downloads

memory/2560-2-0x0000000001850000-0x0000000001859000-memory.dmp

Filesize
36KB

Download
memory/2560-1-0x0000000001860000-0x0000000001960000-memory.dmp

Filesize
1024KB

Download
memory/4900-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4900-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4900-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4900-5-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download