smokeloader | 21d82dc770edea8c99aeef084250b5f8cfa5524dfb9027569ca0d126c13ea18c

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 20:29

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General

Target

bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe
Size

130KB
MD5

bd0be3e310836c6be38fce6f81e11658
SHA1

6cc9641df33cf277101e62b0050f6d6c1a1326f9
SHA256

21d82dc770edea8c99aeef084250b5f8cfa5524dfb9027569ca0d126c13ea18c
SHA512

bb4ebba37bb80e82ab3b79c290e0b709a826906fa2e3b5a7ba0a07a40ae6effe53ba7348be2a1aec61cf5d621d64af1cc2a21488d5be645e87413338852eebd7
SSDEEP

1536:Kpjo0c6ivIXuCcpuuohgwKGl9GYS60MAfzowWvbgTghNFqcY7LMt8bYA/5xqnnDB:KpMbIXS303bGY//tnYfuHxfiiPIE

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
2824	bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2820	2824	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	bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2820	2824	bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2820	2824	bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2820	2824	bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe	30
PID 2824 wrote to memory of 2820	2824	bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bd0be3e310836c6be38fce6f81e11658_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2824 -s 168
  2⤵
  - Program crash
  PID:2820

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\5C1B.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/2824-5-0x0000000000380000-0x000000000038A000-memory.dmp

Filesize
40KB

Download
memory/2824-4-0x0000000000370000-0x000000000037A000-memory.dmp

Filesize
40KB

Download
memory/2824-3-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download