smokeloader | 5255cd73d0113148df31e8bb334a9b9b544858705b28345e3d63cc6a49eb55e3

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 20:33

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General

Target

759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe
Size

143KB
MD5

759d1421306fce37877500fd31af2b0a
SHA1

0503a087927137c3c1143029c31f80cd0d88cecd
SHA256

5255cd73d0113148df31e8bb334a9b9b544858705b28345e3d63cc6a49eb55e3
SHA512

b38b6bc61fe5fe0060c2870093a17defb708bdb1102085616d77208cee2ebe1abfd7e002c301036b10cbe1f1edbb3011534557b9cc999cfbc44d4af537720e09
SSDEEP

3072:C5rJxmmmf2cxVJ6UWtA6bS6uSXu+1V8BkF+vLR:C5rJxmmmf2cx2ZW6uSdmaF+9

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

Processes:

759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

pid process

5044 759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1224 5044 WerFault.exe 759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe
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

Processes:

759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

pid	process
5044	759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

pid	pid_target	process	target process
1224	5044	WerFault.exe	759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\759d1421306fce37877500fd31af2b0a_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 512
2⤵
- Program crash
PID:1224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5044 -ip 5044
1⤵
PID:748

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\5C1B.tmp
Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/5044-1-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

Filesize
4KB

Download
memory/5044-3-0x0000000002BF0000-0x0000000002BFA000-memory.dmp

Filesize
40KB

Download
memory/5044-2-0x0000000002BE0000-0x0000000002BEA000-memory.dmp

Filesize
40KB

Download
memory/5044-7-0x0000000002BF0000-0x0000000002BFA000-memory.dmp

Filesize
40KB

Download