smokeloader | 1659e67ea8b8d8e61b872c6fe2af2456cd1981806975cf6bb70725a04c802538

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 00:21

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General

Target

f726cac9e132ce6362048def387994f7_JaffaCakes118.exe
Size

175KB
MD5

f726cac9e132ce6362048def387994f7
SHA1

4f179d535051737ba26681cca4f979e85ac3dda5
SHA256

1659e67ea8b8d8e61b872c6fe2af2456cd1981806975cf6bb70725a04c802538
SHA512

1b9d8351c9216c92b92d19f7cc4049ad686211a4168ab34b391c6843fe5b29f3af1c0fb27f3efe8f0912a7c103a51f8c2c32546479a2fb0f98c6d34eb0d1ebeb
SSDEEP

3072:2ssldPaDOTpFJW7eBgwZKYkXdVJNfU3zUP/7Oo/hmfVmt6mmr:25ldaD8pFJW7eBgg4JWo7Oo8fVmtJm

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
2512	f726cac9e132ce6362048def387994f7_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1988	2512	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	f726cac9e132ce6362048def387994f7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 1988	2512	f726cac9e132ce6362048def387994f7_JaffaCakes118.exe	31
PID 2512 wrote to memory of 1988	2512	f726cac9e132ce6362048def387994f7_JaffaCakes118.exe	31
PID 2512 wrote to memory of 1988	2512	f726cac9e132ce6362048def387994f7_JaffaCakes118.exe	31
PID 2512 wrote to memory of 1988	2512	f726cac9e132ce6362048def387994f7_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\f726cac9e132ce6362048def387994f7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f726cac9e132ce6362048def387994f7_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 168
  2⤵
  - Program crash
  PID:1988

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/2512-2-0x0000000000130000-0x000000000013A000-memory.dmp

Filesize
40KB

Download
memory/2512-5-0x00000000001C0000-0x00000000001CA000-memory.dmp

Filesize
40KB

Download
memory/2512-1-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/2512-6-0x00000000001C0000-0x00000000001CA000-memory.dmp

Filesize
40KB

Download