smokeloader | c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6

General

Target

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
Size

352KB
MD5

e9b243b105c652443948ee240319f5ae
SHA1

9d4183ebec205e6f346465957887e3e96302d345
SHA256

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6
SHA512

9bbce0c0dbe0e178ed0d46ec35d2b76d57fd601fd4dc4618ccb84e3d4d7b2d3b03b52f945edcecd8f26d5e920e8e8560d2394bb04fec6566b81d4c432d2f7749

Score

10^/10

smokeloader backdoor persistence trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

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
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Suspicious use of SetThreadContext 1 IoCs

Processes:

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

description	pid	process	target process
PID 1316 set thread context of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.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:

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

pid	process
4076	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
4076	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2520
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

pid process

4076 c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2520
Token: SeCreatePagefilePrivilege 2520

pid	process
2520

description	pid	process
Token: SeShutdownPrivilege	2520
Token: SeCreatePagefilePrivilege	2520

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

description	pid	process	target process
PID 1316 wrote to memory of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
PID 1316 wrote to memory of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
PID 1316 wrote to memory of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
PID 1316 wrote to memory of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
PID 1316 wrote to memory of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
PID 1316 wrote to memory of 4076	1316	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe	c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe

C:\Users\Admin\AppData\Local\Temp\c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
"C:\Users\Admin\AppData\Local\Temp\c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1316

C:\Users\Admin\AppData\Local\Temp\c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe
"C:\Users\Admin\AppData\Local\Temp\c19e87f1f2214126a5e01ae7f2f31ca6226d16707cb921197673a92ddf96d1d6.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4076

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe b75439d3c4584e9f256be57a6aba6eba 1OLgPN8KXEeFI7dsC0Hckw.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:444

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1316-130-0x0000000000790000-0x00000000007BB000-memory.dmp

Filesize
172KB

Download
memory/1316-132-0x0000000000720000-0x0000000000729000-memory.dmp

Filesize
36KB

Download
memory/2520-134-0x0000000001390000-0x00000000013A6000-memory.dmp

Filesize
88KB

Download
memory/4076-131-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4076-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads