smokeloader | 3a16c941223ae24e33b62e925575669a52f7993765aadf075a8bea5decd8a836

Analysis

max time kernel
172s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
19-01-2022 08:10

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General

Target

7zS850A099E/61e74fd41f841_Tue2365aa82b7.exe
Size

267KB
MD5

9e967a473010b430f5bde8d23b0cb9a6
SHA1

eed882f8ff642d0da9e89371e3ce75c1be317ad2
SHA256

66b03cc7950fb0df8607d07c4bdd45c74d2da333dcdbd97c5192c8b36b5ce039
SHA512

8916a36c24da3ef89066e226179e32ac3714ad72965e42f14fd38c6387c61c82118e519633f3ba628f5d3d5a45d237bdca7d6325d22599b2948503b0f2866fb7

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Suspicious use of SetThreadContext 1 IoCs

Processes:

61e74fd41f841_Tue2365aa82b7.exe

description pid process target process

PID 1180 set thread context of 2976 1180 61e74fd41f841_Tue2365aa82b7.exe 61e74fd41f841_Tue2365aa82b7.exe

description	pid	process	target process
PID 1180 set thread context of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.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:

61e74fd41f841_Tue2365aa82b7.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	61e74fd41f841_Tue2365aa82b7.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	61e74fd41f841_Tue2365aa82b7.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	61e74fd41f841_Tue2365aa82b7.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

61e74fd41f841_Tue2365aa82b7.exe

pid	process
2976	61e74fd41f841_Tue2365aa82b7.exe
2976	61e74fd41f841_Tue2365aa82b7.exe
2540
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2540
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

61e74fd41f841_Tue2365aa82b7.exe

pid process

2976 61e74fd41f841_Tue2365aa82b7.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2540
Token: SeCreatePagefilePrivilege 2540

pid	process
2540

description	pid	process
Token: SeShutdownPrivilege	2540
Token: SeCreatePagefilePrivilege	2540

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

61e74fd41f841_Tue2365aa82b7.exe

description	pid	process	target process
PID 1180 wrote to memory of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.exe
PID 1180 wrote to memory of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.exe
PID 1180 wrote to memory of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.exe
PID 1180 wrote to memory of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.exe
PID 1180 wrote to memory of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.exe
PID 1180 wrote to memory of 2976	1180	61e74fd41f841_Tue2365aa82b7.exe	61e74fd41f841_Tue2365aa82b7.exe

C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe
"C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1180

C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe
"C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fd41f841_Tue2365aa82b7.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2976

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/1180-130-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download
memory/1180-131-0x00000000001D0000-0x00000000001D9000-memory.dmp

Filesize
36KB

Download
memory/2540-134-0x0000000001350000-0x0000000001366000-memory.dmp

Filesize
88KB

Download
memory/2976-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2976-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download