smokeloader | 2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b

Analysis

max time kernel
151s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2022 06:20

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General

Target

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
Size

169KB
MD5

99821e7b04f23ca36ef0b2a9dc3c4de7
SHA1

2e8aa1b3bc27558e5a4ccb11d9d7dac7a49fa2a1
SHA256

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b
SHA512

31e7a2c7305fdd81c991022697e3b188cb0afaf456d9b5e4549b427b11242b27a681a0a8fb55c76bc60152db6be90747db7d0a42f539124a23fb74794ef1e42a
SSDEEP

3072:FK+LrpY5b9KrsH+j3noBhv529dENBy8+K/PkWDn:xLrpu9usFh8Pl

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1052-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1056-135-0x0000000000640000-0x0000000000649000-memory.dmp	family_smokeloader
behavioral1/memory/1052-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1052-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Suspicious use of SetThreadContext 1 IoCs

Processes:

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

description	pid	process	target process
PID 1056 set thread context of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.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:

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

pid	process
1052	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
1052	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3036
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

pid process

1052 2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

pid	process
3036

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

description	pid	process	target process
PID 1056 wrote to memory of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
PID 1056 wrote to memory of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
PID 1056 wrote to memory of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
PID 1056 wrote to memory of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
PID 1056 wrote to memory of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
PID 1056 wrote to memory of 1052	1056	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe	2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe

C:\Users\Admin\AppData\Local\Temp\2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
"C:\Users\Admin\AppData\Local\Temp\2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1056

C:\Users\Admin\AppData\Local\Temp\2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe
"C:\Users\Admin\AppData\Local\Temp\2d108b21d74491c9045f241a045361279342a55b40f6b6ee5779d0a146270a7b.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1052

Network

MITRE ATT&CK Matrix ATT&CK v6

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

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Downloads

memory/1052-132-0x0000000000000000-mapping.dmp

Download
memory/1052-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1052-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1052-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1056-134-0x0000000000778000-0x0000000000789000-memory.dmp

Filesize
68KB

Download
memory/1056-135-0x0000000000640000-0x0000000000649000-memory.dmp

Filesize
36KB

Download