smokeloader | 71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a

Analysis

max time kernel
20s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 13:39

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General

Target

71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe
Size

284KB
MD5

0fa3039f7d255c26a155005ed52e3508
SHA1

1b8c2a392ff96c8f30beded52426e84f8e36db23
SHA256

71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a
SHA512

ab5bc7ec1df48cf598117b6fe6b43502c3f7da6e5a441b5b3da87ae75b43444d828722133752f61c37e03f766adabf60af2f7e6fd94436f0aa838e4bd00ede96
SSDEEP

6144:hnDiF7VI0x8zGxCJAVPvZDoVlpXU30IaEhROg9bc:ZDkO0042IvhuXuLaEhpbc

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2088	71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2160	2088	WerFault.exe	29

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	71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2160	2088	71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe	30
PID 2088 wrote to memory of 2160	2088	71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe	30
PID 2088 wrote to memory of 2160	2088	71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe	30
PID 2088 wrote to memory of 2160	2088	71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe	30

C:\Users\Admin\AppData\Local\Temp\71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe
"C:\Users\Admin\AppData\Local\Temp\71fbea4c65329cd9f9e4315827e5c3152ef79dd5801a6fd562eb85e3c9ca0f2a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 128
  2⤵
  - Program crash
  PID:2160

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

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Downloads

\Users\Admin\AppData\Local\Temp\1105.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/2088-1-0x0000000000940000-0x0000000000A40000-memory.dmp

Filesize
1024KB

Download
memory/2088-6-0x0000000000400000-0x0000000000877000-memory.dmp

Filesize
4.5MB

Download
memory/2088-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2088-7-0x0000000000400000-0x0000000000877000-memory.dmp

Filesize
4.5MB

Download
memory/2088-8-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download