smokeloader | 4d1c2e09c824359228e2fd39a16fac711956190f86790b74ff856a46b12520c1

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 18:36

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General

Target

Transaction_Ref_26082024_jpg.scr
Size

469KB
MD5

793a58e683a54d24d3c6bae96df29d65
SHA1

09e7bdc6a52fa3290fa7e9ee0471c0d1e445a2ce
SHA256

80f14f5249c49d21ea607b34fa793d523e03acda8298b1ab1ae8a3d55428c6ce
SHA512

f9d6a7d6bdcdfcc3507c55de2e2273e8681f5e8002cffd543bd664064c7e96c35137323f21a742bb00a6cadfc66e06084ddab3ba68207e97cbfa55fc7ec83e42
SSDEEP

12288:QvIGc227fgEH/ZnTzlyi3EV/189JhnuYfW9akuz:Ax27Jf9Txye6CJRGDu

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 1328 set thread context of 5112	1328	Transaction_Ref_26082024_jpg.scr	94

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	Transaction_Ref_26082024_jpg.scr

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	Transaction_Ref_26082024_jpg.scr
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Transaction_Ref_26082024_jpg.scr
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	Transaction_Ref_26082024_jpg.scr

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 5112	1328	Transaction_Ref_26082024_jpg.scr	94
PID 1328 wrote to memory of 5112	1328	Transaction_Ref_26082024_jpg.scr	94
PID 1328 wrote to memory of 5112	1328	Transaction_Ref_26082024_jpg.scr	94
PID 1328 wrote to memory of 5112	1328	Transaction_Ref_26082024_jpg.scr	94
PID 1328 wrote to memory of 5112	1328	Transaction_Ref_26082024_jpg.scr	94
PID 1328 wrote to memory of 5112	1328	Transaction_Ref_26082024_jpg.scr	94

C:\Users\Admin\AppData\Local\Temp\Transaction_Ref_26082024_jpg.scr
"C:\Users\Admin\AppData\Local\Temp\Transaction_Ref_26082024_jpg.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1328
- C:\Users\Admin\AppData\Local\Temp\Transaction_Ref_26082024_jpg.scr
  "C:\Users\Admin\AppData\Local\Temp\Transaction_Ref_26082024_jpg.scr"
  2⤵
  - Checks SCSI registry key(s)
  PID:5112

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/1328-8-0x0000000074C3E000-0x0000000074C3F000-memory.dmp

Filesize
4KB

Download
memory/1328-6-0x00000000057E0000-0x000000000587C000-memory.dmp

Filesize
624KB

Download
memory/1328-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/1328-3-0x0000000005520000-0x00000000055B2000-memory.dmp

Filesize
584KB

Download
memory/1328-0-0x0000000074C3E000-0x0000000074C3F000-memory.dmp

Filesize
4KB

Download
memory/1328-5-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/1328-1-0x0000000000A70000-0x0000000000AEC000-memory.dmp

Filesize
496KB

Download
memory/1328-7-0x0000000005A70000-0x0000000005A8A000-memory.dmp

Filesize
104KB

Download
memory/1328-4-0x00000000054D0000-0x00000000054DA000-memory.dmp

Filesize
40KB

Download
memory/1328-9-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/1328-10-0x0000000005AA0000-0x0000000005AB0000-memory.dmp

Filesize
64KB

Download
memory/1328-11-0x00000000069F0000-0x0000000006A42000-memory.dmp

Filesize
328KB

Download
memory/1328-15-0x0000000074C30000-0x00000000753E0000-memory.dmp

Filesize
7.7MB

Download
memory/5112-14-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5112-12-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5112-16-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download