smokeloader | 1d0b756bd67465442e0c3932349a44eba5a0097204ddb32e89d6b1e31327dab0

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
16-02-2023 00:28

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General

Target

file.exe
Size

204KB
MD5

d877fad40630b83cc997a8c683f4b17d
SHA1

e1bd79a07076dbd2c081a0e098444fed84b6891a
SHA256

1d0b756bd67465442e0c3932349a44eba5a0097204ddb32e89d6b1e31327dab0
SHA512

60e53052b92b8e376630e50477632d9d0dd35daee14112c6b2c5796b3e96ce6a7deadb384b169cab40d8ca1353c128a4021375654982ee4bd785569ede69896f
SSDEEP

3072:Los+td2PSSo9SDHkMu0H5jFXV80Hd9A4T0JBOfI3ccq9TFPrMQ:L3+tfUD9nHPac+4oJAQ3yTF

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

resource	yara_rule
behavioral2/memory/484-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/440-135-0x0000000000800000-0x0000000000809000-memory.dmp	family_smokeloader
behavioral2/memory/484-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/484-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3572-193-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3572-194-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
1028	cwbdgjf
3572	cwbdgjf

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 440 set thread context of 484	440	file.exe	82
PID 1028 set thread context of 3572	1028	cwbdgjf	91

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cwbdgjf
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cwbdgjf
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cwbdgjf

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
484	file.exe
484	file.exe
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found
2628	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2628	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
484	file.exe
3572	cwbdgjf

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2628	Process not Found
Token: SeCreatePagefilePrivilege	2628	Process not Found
Token: SeShutdownPrivilege	2628	Process not Found
Token: SeCreatePagefilePrivilege	2628	Process not Found
Token: SeShutdownPrivilege	2628	Process not Found
Token: SeCreatePagefilePrivilege	2628	Process not Found
Token: SeShutdownPrivilege	2628	Process not Found
Token: SeCreatePagefilePrivilege	2628	Process not Found
Token: SeShutdownPrivilege	2628	Process not Found
Token: SeCreatePagefilePrivilege	2628	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 484	440	file.exe	82
PID 440 wrote to memory of 484	440	file.exe	82
PID 440 wrote to memory of 484	440	file.exe	82
PID 440 wrote to memory of 484	440	file.exe	82
PID 440 wrote to memory of 484	440	file.exe	82
PID 440 wrote to memory of 484	440	file.exe	82
PID 1028 wrote to memory of 3572	1028	cwbdgjf	91
PID 1028 wrote to memory of 3572	1028	cwbdgjf	91
PID 1028 wrote to memory of 3572	1028	cwbdgjf	91
PID 1028 wrote to memory of 3572	1028	cwbdgjf	91
PID 1028 wrote to memory of 3572	1028	cwbdgjf	91
PID 1028 wrote to memory of 3572	1028	cwbdgjf	91

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:440
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:484

C:\Users\Admin\AppData\Roaming\cwbdgjf
C:\Users\Admin\AppData\Roaming\cwbdgjf
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1028
- C:\Users\Admin\AppData\Roaming\cwbdgjf
  C:\Users\Admin\AppData\Roaming\cwbdgjf
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:3572

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\cwbdgjf

Filesize
204KB

MD5
d877fad40630b83cc997a8c683f4b17d

SHA1
e1bd79a07076dbd2c081a0e098444fed84b6891a

SHA256
1d0b756bd67465442e0c3932349a44eba5a0097204ddb32e89d6b1e31327dab0

SHA512
60e53052b92b8e376630e50477632d9d0dd35daee14112c6b2c5796b3e96ce6a7deadb384b169cab40d8ca1353c128a4021375654982ee4bd785569ede69896f

Download Submit
C:\Users\Admin\AppData\Roaming\cwbdgjf

Filesize
204KB

MD5
d877fad40630b83cc997a8c683f4b17d

SHA1
e1bd79a07076dbd2c081a0e098444fed84b6891a

SHA256
1d0b756bd67465442e0c3932349a44eba5a0097204ddb32e89d6b1e31327dab0

SHA512
60e53052b92b8e376630e50477632d9d0dd35daee14112c6b2c5796b3e96ce6a7deadb384b169cab40d8ca1353c128a4021375654982ee4bd785569ede69896f

Download Submit
C:\Users\Admin\AppData\Roaming\cwbdgjf

Filesize
204KB

MD5
d877fad40630b83cc997a8c683f4b17d

SHA1
e1bd79a07076dbd2c081a0e098444fed84b6891a

SHA256
1d0b756bd67465442e0c3932349a44eba5a0097204ddb32e89d6b1e31327dab0

SHA512
60e53052b92b8e376630e50477632d9d0dd35daee14112c6b2c5796b3e96ce6a7deadb384b169cab40d8ca1353c128a4021375654982ee4bd785569ede69896f

Download Submit
memory/440-134-0x000000000083F000-0x0000000000852000-memory.dmp

Filesize
76KB

Download
memory/440-135-0x0000000000800000-0x0000000000809000-memory.dmp

Filesize
36KB

Download
memory/484-132-0x0000000000000000-mapping.dmp

Download
memory/484-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/484-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/484-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1028-192-0x000000000071F000-0x0000000000732000-memory.dmp

Filesize
76KB

Download
memory/2628-159-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2628-164-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-141-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-143-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-142-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-144-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-145-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-146-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-147-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-148-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-149-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-150-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-151-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-152-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-153-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-154-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-155-0x0000000003210000-0x0000000003220000-memory.dmp

Filesize
64KB

Download
memory/2628-156-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2628-157-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2628-158-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2628-139-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-160-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2628-161-0x0000000003220000-0x0000000003230000-memory.dmp

Filesize
64KB

Download
memory/2628-162-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-163-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-140-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-165-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-166-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-167-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-168-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-169-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-170-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-171-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-172-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-173-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-174-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-175-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-176-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-177-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-178-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/2628-179-0x00000000012D0000-0x00000000012E0000-memory.dmp

Filesize
64KB

Download
memory/2628-180-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/2628-181-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/2628-182-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/2628-183-0x00000000012D0000-0x00000000012E0000-memory.dmp

Filesize
64KB

Download
memory/2628-184-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/2628-185-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/2628-186-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/2628-138-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/3572-189-0x0000000000000000-mapping.dmp

Download
memory/3572-193-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3572-194-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download