smokeloader | b5d6181c7534f65dfe895a97963cf0dd5ea60f03b8bd1c539425e8c3fd468848

Analysis

max time kernel
185s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 19:59

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General

Target

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
Size

167KB
MD5

da4afd549426c3e6295e9a72e3872cda
SHA1

5e523e4069b17263af7e96afa24efd2227ec2158
SHA256

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad
SHA512

9c34bfe0ae72461e88c086aaac8746e5a6e730223fcd2788e889432ebd25eba1acd4dcdd9917b9d180989a604b90e1ac5272187252140ad7631a97331b1a5d2a
SSDEEP

3072:Wrd9Ya2ZukYxzS5baNcb/ZfnKIoq4+2pGSbAP:wPELYxwvBCIL4PGJP

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2016-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/4244-135-0x0000000000870000-0x0000000000879000-memory.dmp	family_smokeloader
behavioral2/memory/2016-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/2016-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

description	pid	process	target process
PID 4244 set thread context of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.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:

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

pid	process
2016	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
2016	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

pid process

2016 a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

pid	process
3060

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

description	pid	process	target process
PID 4244 wrote to memory of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
PID 4244 wrote to memory of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
PID 4244 wrote to memory of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
PID 4244 wrote to memory of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
PID 4244 wrote to memory of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
PID 4244 wrote to memory of 2016	4244	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe	a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe

C:\Users\Admin\AppData\Local\Temp\a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
"C:\Users\Admin\AppData\Local\Temp\a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4244

C:\Users\Admin\AppData\Local\Temp\a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe
"C:\Users\Admin\AppData\Local\Temp\a23071ca8b7cb1a2a85fd54efe3a5cf2f80470c9846efce69dd72d659f2670ad.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2016

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2016-132-0x0000000000000000-mapping.dmp

Download
memory/2016-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2016-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2016-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4244-135-0x0000000000870000-0x0000000000879000-memory.dmp

Filesize
36KB

Download
memory/4244-134-0x00000000008AE000-0x00000000008BE000-memory.dmp

Filesize
64KB

Download