smokeloader | 43ade0732b103beef40c9c65dfe7854c5b29ff274fc8d5bfe954a2564f4d6396

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 14:41

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General

Target

cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
Size

204KB
MD5

cfc5759ef1af8bc3f7c3d2004fd0de58
SHA1

0378fef84e0494127bf60110ccc615a4cbf9fa86
SHA256

43ade0732b103beef40c9c65dfe7854c5b29ff274fc8d5bfe954a2564f4d6396
SHA512

8ef01ed32f77441d0a7f78b1e48e0027b2931a95091283915dcaf9b60e7c6f319dfb2f166d8947e3a3f699bbd4e725665954f482e0870a0e2aab904243b091c8
SSDEEP

3072:oGd/bJ5GnnWxnQqc5eYHRMfP8yEbsc6qfPrjyUf16h8L:ou/NPxQquRMfkNbsc6qbjhf1UE

Score

10^/10

smokeloader backdoor discovery persistence trojan

Malware Config

Extracted

Family

smokeloader

Version

2017

http://securityupdateserver3.com/blog/wp.php

http://securityupdateserver4.com/blog/wp.php

http://securityupdateserver5.com/blog/wp.php

Signatures

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

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Netscape = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\beajjsbh\\bijiauhh.exe"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	explorer.exe

Deletes itself 1 IoCs

pid	Process
2524	explorer.exe

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	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2524	3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe	30
PID 3064 wrote to memory of 2524	3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe	30
PID 3064 wrote to memory of 2524	3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe	30
PID 3064 wrote to memory of 2524	3064	cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cfc5759ef1af8bc3f7c3d2004fd0de58_JaffaCakes118.exe"
1⤵
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\explorer.exe
  explorer.exe
  2⤵
  - Adds policy Run key to start application
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/2524-10-0x0000000000BB0000-0x0000000000E31000-memory.dmp

Filesize
2.5MB

Download
memory/2524-31-0x0000000000080000-0x000000000008A000-memory.dmp

Filesize
40KB

Download
memory/2524-22-0x0000000000080000-0x000000000008A000-memory.dmp

Filesize
40KB

Download
memory/2524-23-0x0000000000080000-0x000000000008A000-memory.dmp

Filesize
40KB

Download
memory/2524-12-0x0000000000080000-0x000000000008A000-memory.dmp

Filesize
40KB

Download
memory/2524-11-0x0000000000BB0000-0x0000000000E31000-memory.dmp

Filesize
2.5MB

Download
memory/3064-5-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/3064-9-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/3064-8-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download
memory/3064-7-0x0000000072940000-0x0000000072A60000-memory.dmp

Filesize
1.1MB

Download
memory/3064-15-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/3064-18-0x0000000072940000-0x0000000072A60000-memory.dmp

Filesize
1.1MB

Download
memory/3064-2-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download
memory/3064-4-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/3064-3-0x0000000000400000-0x0000000000404000-memory.dmp

Filesize
16KB

Download