smokeloader | 7bfff9caf766d3badf0dc70ab179e7cec117165728816b973d7d4a710bd78206

Analysis

max time kernel
142s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24-08-2024 05:23

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General

Target

bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe
Size

252KB
MD5

bdf7b33a45aad9f77bf389f7fb7f333c
SHA1

c3319344efc9a963789a59f5047fb0092891c68d
SHA256

7bfff9caf766d3badf0dc70ab179e7cec117165728816b973d7d4a710bd78206
SHA512

251ee412272fe2e063be0392cee331ff368e8e181ca0df98b87d098e80d9d56c01c45d9cbd8501888a78b5fbf3e97662afc243fdab2cb4076784bbca1f346756
SSDEEP

3072:YV8Lsp0FEnMjx1tMeWmrObU9EFifXW4s4S4IJE6ow7UbyNdifrrza4dRd:TLmS8Mjx1LWmabWhlSEN+diffza4dR

Score

10^/10

smokeloader yhu backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

YhU

Extracted

Family

smokeloader

Version

2018

http://kljew3id.us/kw/

rc4.i32

Signatures

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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk 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\Services\Disk\Enum	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 3256	2904	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe	89

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	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3256	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe
3256	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2904	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 3256	2904	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe	89
PID 2904 wrote to memory of 3256	2904	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe	89
PID 2904 wrote to memory of 3256	2904	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe	89
PID 2904 wrote to memory of 3256	2904	bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe	89

C:\Users\Admin\AppData\Local\Temp\bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Users\Admin\AppData\Local\Temp\bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\bdf7b33a45aad9f77bf389f7fb7f333c_JaffaCakes118.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious behavior: MapViewOfSection
  PID:3256

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/2904-0-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/3256-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3256-5-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3492-2-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/3492-3-0x0000000002A60000-0x0000000002A75000-memory.dmp

Filesize
84KB

Download
memory/3492-4-0x0000000000550000-0x0000000000551000-memory.dmp

Filesize
4KB

Download
memory/3492-6-0x0000000002A60000-0x0000000002A75000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads