smokeloader | f24a559e79ba3121c7e0fed4ac995da056fe6a0dac71b2360f9e340b97117d05

General

Target

06a029882deabf229f62728afe3baf4f.exe
Size

319KB
MD5

06a029882deabf229f62728afe3baf4f
SHA1

33a5953fbcce8761af1e68df9c9f4ad153c4a536
SHA256

f24a559e79ba3121c7e0fed4ac995da056fe6a0dac71b2360f9e340b97117d05
SHA512

a81631eef6163f437e5bdf83156d26856653411dc6b9becc5580a83b9a4123faec5855d625beec15b1f71c3155624187f776f56b4f58e5f87e9f39bd8b61ba88

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforjuly1.xyz/

http://readinglistforjuly2.xyz/

http://readinglistforjuly3.xyz/

http://readinglistforjuly4.xyz/

http://readinglistforjuly5.xyz/

http://readinglistforjuly6.xyz/

http://readinglistforjuly7.xyz/

http://readinglistforjuly8.xyz/

http://readinglistforjuly9.xyz/

http://readinglistforjuly10.xyz/

http://readinglistforjuly1.site/

http://readinglistforjuly2.site/

http://readinglistforjuly3.site/

http://readinglistforjuly4.site/

http://readinglistforjuly5.site/

http://readinglistforjuly6.site/

http://readinglistforjuly7.site/

http://readinglistforjuly8.site/

http://readinglistforjuly9.site/

http://readinglistforjuly10.site/

rc4.i32

Signatures

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

Processes:

06a029882deabf229f62728afe3baf4f.exe

description pid process target process

PID 5012 set thread context of 4524 5012 06a029882deabf229f62728afe3baf4f.exe 06a029882deabf229f62728afe3baf4f.exe

description	pid	process	target process
PID 5012 set thread context of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.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:

06a029882deabf229f62728afe3baf4f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	06a029882deabf229f62728afe3baf4f.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	06a029882deabf229f62728afe3baf4f.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	06a029882deabf229f62728afe3baf4f.exe

Modifies data under HKEY_USERS 43 IoCs

Processes:

sihclient.exesvchost.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Classes\Local Settings\MuiCache\7\52C64B7E	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	sihclient.exe
Key created	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	sihclient.exe

Modifies registry class 4 IoCs

Processes:

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{5b934b42-522b-4c34-bbfe-37a3ef7b9c90}\Instance\
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{f8278c54-a712-415b-b593-b77a2be0dda9}\Instance\
Key created	\REGISTRY\USER\S-1-5-21-257790753-2419383948-818201544-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

06a029882deabf229f62728afe3baf4f.exe

pid	process
4524	06a029882deabf229f62728afe3baf4f.exe
4524	06a029882deabf229f62728afe3baf4f.exe
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120
3120

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3120
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

06a029882deabf229f62728afe3baf4f.exe

pid process

4524 06a029882deabf229f62728afe3baf4f.exe

pid	process
3120

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	3120
Token: SeCreatePagefilePrivilege	3120
Token: SeShutdownPrivilege	3120
Token: SeCreatePagefilePrivilege	3120
Token: SeShutdownPrivilege	3120
Token: SeCreatePagefilePrivilege	3120
Token: SeShutdownPrivilege	3120
Token: SeCreatePagefilePrivilege	3120
Token: SeShutdownPrivilege	3120
Token: SeCreatePagefilePrivilege	3120

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

06a029882deabf229f62728afe3baf4f.exe

description	pid	process	target process
PID 5012 wrote to memory of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.exe
PID 5012 wrote to memory of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.exe
PID 5012 wrote to memory of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.exe
PID 5012 wrote to memory of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.exe
PID 5012 wrote to memory of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.exe
PID 5012 wrote to memory of 4524	5012	06a029882deabf229f62728afe3baf4f.exe	06a029882deabf229f62728afe3baf4f.exe

C:\Users\Admin\AppData\Local\Temp\06a029882deabf229f62728afe3baf4f.exe
"C:\Users\Admin\AppData\Local\Temp\06a029882deabf229f62728afe3baf4f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5012

C:\Users\Admin\AppData\Local\Temp\06a029882deabf229f62728afe3baf4f.exe
"C:\Users\Admin\AppData\Local\Temp\06a029882deabf229f62728afe3baf4f.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4524

C:\Windows\System32\sihclient.exe
C:\Windows\System32\sihclient.exe /cv sjuMneG/lkSK2C7c/HduvQ.0.2
1⤵
- Modifies data under HKEY_USERS
PID:3784

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
1⤵
- Modifies data under HKEY_USERS
PID:1172

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:2232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

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Downloads

memory/1172-171-0x000001C9EDF90000-0x000001C9EDF94000-memory.dmp

Filesize
16KB

Download
memory/1172-176-0x000001C9EB9A0000-0x000001C9EB9A1000-memory.dmp

Filesize
4KB

Download
memory/1172-175-0x000001C9EDCC0000-0x000001C9EDCC4000-memory.dmp

Filesize
16KB

Download
memory/1172-174-0x000001C9EDCC0000-0x000001C9EDCC1000-memory.dmp

Filesize
4KB

Download
memory/1172-150-0x000001C9EB660000-0x000001C9EB670000-memory.dmp

Filesize
64KB

Download
memory/1172-151-0x000001C9EB6E0000-0x000001C9EB6F0000-memory.dmp

Filesize
64KB

Download
memory/1172-173-0x000001C9EDCD0000-0x000001C9EDCD4000-memory.dmp

Filesize
16KB

Download
memory/1172-172-0x000001C9EDF50000-0x000001C9EDF51000-memory.dmp

Filesize
4KB

Download
memory/3120-149-0x0000000004210000-0x0000000004226000-memory.dmp

Filesize
88KB

Download
memory/3120-163-0x0000000007550000-0x00000000075D0000-memory.dmp

Filesize
512KB

Download
memory/3120-155-0x0000000004010000-0x0000000004090000-memory.dmp

Filesize
512KB

Download
memory/4524-148-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4524-147-0x0000000000000000-mapping.dmp

Download
memory/5012-146-0x0000000000A90000-0x0000000000A9A000-memory.dmp

Filesize
40KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads