smokeloader | b081f8fe43e1da86658f8918fd2af795d4b018672ffa5893d8cc318b1fac4d3f

Analysis

max time kernel
114s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-08-2024 06:12

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General

Target

10c07024001658ac39197127350a9320N.exe
Size

346KB
MD5

10c07024001658ac39197127350a9320
SHA1

1313bd2c7d073fdcc07bdbb5800385d94519b32f
SHA256

b081f8fe43e1da86658f8918fd2af795d4b018672ffa5893d8cc318b1fac4d3f
SHA512

a9c650e9c5733e7d1ec9cfbf86d5c2d09ddc6a65477065064b8f78081de9c6205f8b691072b421689a001efb2b70f032c2bac5903dccf0f0da0e4793c10620d0
SSDEEP

6144:rlZXUTeGHJEZFrL4eA3RG4inBRct64ED9adS73MYP:rveeGmrzA3M4in4M9adgP

Score

10^/10

smokeloader 0604 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

0604

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2772	10c07024001658ac39197127350a9320N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4120 set thread context of 2772	4120	10c07024001658ac39197127350a9320N.exe	91

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	10c07024001658ac39197127350a9320N.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	10c07024001658ac39197127350a9320N.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	10c07024001658ac39197127350a9320N.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	10c07024001658ac39197127350a9320N.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 2772	4120	10c07024001658ac39197127350a9320N.exe	91
PID 4120 wrote to memory of 2772	4120	10c07024001658ac39197127350a9320N.exe	91
PID 4120 wrote to memory of 2772	4120	10c07024001658ac39197127350a9320N.exe	91
PID 4120 wrote to memory of 2772	4120	10c07024001658ac39197127350a9320N.exe	91
PID 4120 wrote to memory of 2772	4120	10c07024001658ac39197127350a9320N.exe	91
PID 4120 wrote to memory of 2772	4120	10c07024001658ac39197127350a9320N.exe	91

C:\Users\Admin\AppData\Local\Temp\10c07024001658ac39197127350a9320N.exe
"C:\Users\Admin\AppData\Local\Temp\10c07024001658ac39197127350a9320N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Temp\10c07024001658ac39197127350a9320N.exe
  "C:\Users\Admin\AppData\Local\Temp\10c07024001658ac39197127350a9320N.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:2772

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4228,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4184 /prefetch:8
1⤵
PID:224

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

C:\Users\Admin\AppData\Local\Temp\AE30.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/2772-3-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2772-4-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2772-10-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4120-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/4120-2-0x00000000021B0000-0x00000000021BC000-memory.dmp

Filesize
48KB

Download