smokeloader | fda3e128efe85af2ff29ce1657fd6d26aff37b724a308e3ff48596c8a7d795f5

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 20:04

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General

Target

b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe
Size

293KB
MD5

b0a3aa49cb254a5a30ae5551a889ab3a
SHA1

1da8ab99e7e40ab8c517b03887df4fc5f03e29af
SHA256

fda3e128efe85af2ff29ce1657fd6d26aff37b724a308e3ff48596c8a7d795f5
SHA512

2b961074152de1875712a10367d669509becea64cdcc47dde6eed3d5bdce6b9491cb6b87fbb92e392421f8d75b88593f1fade4dc89d2197866487d8ae3a1f832
SSDEEP

6144:zOYFnZO0vn6hKckwZeJ2hL5rVrjosLEja/8dKenOvpPDHxNa:DS0/6vkws41osLEGEdznOvpPrxN

Score

10^/10

smokeloader ku11 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

ku11

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1440	b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2084	1440	WerFault.exe	30

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	b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 2084	1440	b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe	31
PID 1440 wrote to memory of 2084	1440	b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe	31
PID 1440 wrote to memory of 2084	1440	b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe	31
PID 1440 wrote to memory of 2084	1440	b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b0a3aa49cb254a5a30ae5551a889ab3a_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1440 -s 164
  2⤵
  - Program crash
  PID:2084

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\5C1B.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/1440-0-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/1440-2-0x0000000000190000-0x000000000019A000-memory.dmp

Filesize
40KB

Download
memory/1440-1-0x0000000000180000-0x000000000018A000-memory.dmp

Filesize
40KB

Download
memory/1440-6-0x0000000000190000-0x000000000019A000-memory.dmp

Filesize
40KB

Download