smokeloader | 44ee5a21c9fd8aa4568cc307b0271142d9dada765fd629c85765b065c566cf78

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
30-08-2024 22:42

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General

Target

cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe
Size

304KB
MD5

cbcf066add7ca61879f83466d6b1897c
SHA1

ef35f0a0e1ea5569981e5de7f8d42f4aff60e2ab
SHA256

44ee5a21c9fd8aa4568cc307b0271142d9dada765fd629c85765b065c566cf78
SHA512

90a9118b4c8c59ec12efcf49516d6bb6b0239941345d86fe52d3d38189a21a1591f6fcb2fb3532155436120304aad294d5f8e680cf89658c19235f34a8f87536
SSDEEP

6144:Gpy64kUJDxh+pONWRxkcOATEouE+Mgzq96SZ7SEghVRUSOmarJFuT:GpVZA+p1iEmqfZWEokZa

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
2500	cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2320	2500	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	cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2320	2500	cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe	31
PID 2500 wrote to memory of 2320	2500	cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe	31
PID 2500 wrote to memory of 2320	2500	cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe	31
PID 2500 wrote to memory of 2320	2500	cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cbcf066add7ca61879f83466d6b1897c_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 168
  2⤵
  - Program crash
  PID:2320

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/2500-0-0x0000000004AF0000-0x0000000004AF1000-memory.dmp

Filesize
4KB

Download
memory/2500-1-0x0000000004B40000-0x0000000004B4A000-memory.dmp

Filesize
40KB

Download
memory/2500-2-0x0000000004B50000-0x0000000004B5A000-memory.dmp

Filesize
40KB

Download
memory/2500-6-0x0000000004B50000-0x0000000004B5A000-memory.dmp

Filesize
40KB

Download