smokeloader | 71f78b8ea9a26b45321cc9a009824e2544ba1052f5e2d75d2d9291e4642ee270

Resubmissions

29-08-2024 07:35

240829-je4t5azdnb 10

29-08-2024 04:27

240829-e24enatdmc 10

Analysis

max time kernel
111s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 04:27

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General

Target

03877abf483cfd06d88d7ce54b425620N.exe
Size

280KB
MD5

03877abf483cfd06d88d7ce54b425620
SHA1

5249fb5adb210b2ba86ceedb0888f239b84bd399
SHA256

71f78b8ea9a26b45321cc9a009824e2544ba1052f5e2d75d2d9291e4642ee270
SHA512

f2c32fd82ea9979c87c9e7ddb588fa539d197f420ffe82c1127323c7165d5fbfde6dc2ab2fd152a6f89b8551a2291775f45655940a68a500875732cf2ed01ddc
SSDEEP

6144:FaN6w1ri50kUbHlS6H1ZnV2z36xKeOpnr+TIlv:u6OWOk6IyBAzKxZgy6v

Score

10^/10

smokeloader pub6 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub6

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1104	03877abf483cfd06d88d7ce54b425620N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2984	1104	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	03877abf483cfd06d88d7ce54b425620N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 2984	1104	03877abf483cfd06d88d7ce54b425620N.exe	30
PID 1104 wrote to memory of 2984	1104	03877abf483cfd06d88d7ce54b425620N.exe	30
PID 1104 wrote to memory of 2984	1104	03877abf483cfd06d88d7ce54b425620N.exe	30
PID 1104 wrote to memory of 2984	1104	03877abf483cfd06d88d7ce54b425620N.exe	30

C:\Users\Admin\AppData\Local\Temp\03877abf483cfd06d88d7ce54b425620N.exe
"C:\Users\Admin\AppData\Local\Temp\03877abf483cfd06d88d7ce54b425620N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 128
  2⤵
  - Program crash
  PID:2984

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

\Users\Admin\AppData\Local\Temp\CC4F.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/1104-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1104-1-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/1104-4-0x0000000000400000-0x000000000083F000-memory.dmp

Filesize
4.2MB

Download
memory/1104-8-0x0000000000930000-0x0000000000A30000-memory.dmp

Filesize
1024KB

Download
memory/1104-7-0x0000000000400000-0x000000000083F000-memory.dmp

Filesize
4.2MB

Download
memory/1104-9-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download