smokeloader | 496f578f68fcef476f7c8d92322a3536f507e45704b8e1c87c56056e19c1e391

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
25-06-2024 10:58

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General

Target

1.exe
Size

227KB
MD5

4c2fac8f9227cdb10b5b8056f396629b
SHA1

3e84121bee19dd64d74ef41196a09894a6017d73
SHA256

496f578f68fcef476f7c8d92322a3536f507e45704b8e1c87c56056e19c1e391
SHA512

10297336f66bb57fd6d1d8a563dd507d05b79d63cec50e3069593055b1b21f41c8de10284f7d6d2ece981e68bd3970252f3e7700d0fa3f602867f5f5b95ed3b6
SSDEEP

3072:1Jr6zgrn0rzKl3g5hxsrtYvyjIo3T8NAf68hu0nPsZciXcYW43hK:1hnezKl3UstVIo3T8ONhZPKVs

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

http://movlat.com/tmp/

http://llcbc.org/tmp/

http://lindex24.ru/tmp/

http://qeqei.xyz/tmp/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Deletes itself 1 IoCs

Processes:

pid process

1200
Executes dropped EXE 1 IoCs

Processes:

gteerwg

pid process

2548 gteerwg

pid	process
1200

pid	process
2548	gteerwg

Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

1.exegteerwg

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gteerwg
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gteerwg
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gteerwg
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	1.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	1.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

1.exe

pid	process
1688	1.exe
1688	1.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

1200
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

1.exegteerwg

pid process

1688 1.exe
2548 gteerwg

pid	process
1200

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 2840 wrote to memory of 2548	2840	taskeng.exe	gteerwg
PID 2840 wrote to memory of 2548	2840	taskeng.exe	gteerwg
PID 2840 wrote to memory of 2548	2840	taskeng.exe	gteerwg
PID 2840 wrote to memory of 2548	2840	taskeng.exe	gteerwg

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1688

C:\Windows\system32\taskeng.exe
taskeng.exe {821BB93F-F37B-48E4-8617-59BCB3D02C71} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2840

C:\Users\Admin\AppData\Roaming\gteerwg
C:\Users\Admin\AppData\Roaming\gteerwg
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2548

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\gteerwg
Filesize
227KB

MD5
4c2fac8f9227cdb10b5b8056f396629b

SHA1
3e84121bee19dd64d74ef41196a09894a6017d73

SHA256
496f578f68fcef476f7c8d92322a3536f507e45704b8e1c87c56056e19c1e391

SHA512
10297336f66bb57fd6d1d8a563dd507d05b79d63cec50e3069593055b1b21f41c8de10284f7d6d2ece981e68bd3970252f3e7700d0fa3f602867f5f5b95ed3b6

Download Submit
memory/1200-4-0x0000000002D30000-0x0000000002D46000-memory.dmp

Filesize
88KB

Download
memory/1200-16-0x0000000002490000-0x00000000024A6000-memory.dmp

Filesize
88KB

Download
memory/1688-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/1688-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1688-2-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/1688-5-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1688-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2548-15-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2548-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download