smokeloader | 21b5c4b262bc1828f17180c928c01de065d4c0d4725beebd300a31ba3e9b3dd3

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-11-2024 12:13

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General

Target

a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe
Size

244KB
MD5

ccef69673bfacc50e52be235c37e7f77
SHA1

159ecf054d4622bcfdf4885b0cbfee182c6cf1e9
SHA256

a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4
SHA512

922c79fa26d5fc0e77f6afed86dd1085c7e4045f65db9eb3f748f537f6ad0963746a3fd217ef2325cea93f8db1db6e10100d1f565cb04042e6cfa8df407f1688
SSDEEP

3072:W7C/lKw6yl7YrMAVQnzqn6tmV4V5OSLS3eet4ckBFXs4+WJ3N5rIQMafKYEEmndd:ld7YrMAIzq6J5OmSuet0XXzSziF75

Score

10^/10

smokeloader pub2 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub2

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2376 1968 WerFault.exe a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe

pid	pid_target	process	target process
2376	1968	WerFault.exe	a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe

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

Processes:

a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe

description	pid	process	target process
PID 1968 wrote to memory of 2376	1968	a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe	WerFault.exe
PID 1968 wrote to memory of 2376	1968	a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe	WerFault.exe
PID 1968 wrote to memory of 2376	1968	a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe	WerFault.exe
PID 1968 wrote to memory of 2376	1968	a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe
"C:\Users\Admin\AppData\Local\Temp\a948708e60fe0c202fb4b6e56f5a5d0a3b0a96ed27f8015b5a6d9991841fb3f4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 136
  2⤵
  - Program crash
  PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1968-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/1968-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1968-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1968-4-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download