smokeloader | bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5

Analysis

max time kernel
150s
max time network
93s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
23-11-2022 08:08

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General

Target

bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
Size

186KB
MD5

e22f5d82448333c9047bafe9d1331d5f
SHA1

4be6fce8f1c01d622e9570a09c1632a96218e474
SHA256

bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5
SHA512

1bf0ecc04bb0a4f0569769191bb68f040dd4603c51d0de7ecad1018ea9cdd017b2cd39066d0dcc68b6e4db2344882d0e94995396bdc786bb3268e72469d1f936
SSDEEP

3072:pBkApSndJOALbdXDWWLD5Acq6NEl84DDx7wg3puD5z26:8A4nLbdXDR5qiEVdZuD1t

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 8 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1976-148-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/1976-147-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1976-162-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1976-179-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2916-212-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/4428-221-0x00000000001D0000-0x00000000001D9000-memory.dmp	family_smokeloader
behavioral1/memory/2916-244-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2916-245-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Executes dropped EXE 2 IoCs

Processes:

vhtsfbcvhtsfbc

pid process

4428 vhtsfbc
2916 vhtsfbc
Deletes itself 1 IoCs

Processes:

pid process

2076

pid	process
4428	vhtsfbc
2916	vhtsfbc

pid	process
2076

Suspicious use of SetThreadContext 2 IoCs

Processes:

bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exevhtsfbc

description	pid	process	target process
PID 3516 set thread context of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 4428 set thread context of 2916	4428	vhtsfbc	vhtsfbc

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

Processes:

vhtsfbcbff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vhtsfbc
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vhtsfbc
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vhtsfbc
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe

pid	process
1976	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
1976	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
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2076
2076
2076
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2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
2076
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2076

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2076
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exevhtsfbc

pid process

1976 bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
2916 vhtsfbc
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

description pid process

Token: SeShutdownPrivilege 2076
Token: SeCreatePagefilePrivilege 2076

pid	process
2076

description	pid	process
Token: SeShutdownPrivilege	2076
Token: SeCreatePagefilePrivilege	2076

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exevhtsfbc

description	pid	process	target process
PID 3516 wrote to memory of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 3516 wrote to memory of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 3516 wrote to memory of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 3516 wrote to memory of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 3516 wrote to memory of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 3516 wrote to memory of 1976	3516	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe	bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
PID 4428 wrote to memory of 2916	4428	vhtsfbc	vhtsfbc
PID 4428 wrote to memory of 2916	4428	vhtsfbc	vhtsfbc
PID 4428 wrote to memory of 2916	4428	vhtsfbc	vhtsfbc
PID 4428 wrote to memory of 2916	4428	vhtsfbc	vhtsfbc
PID 4428 wrote to memory of 2916	4428	vhtsfbc	vhtsfbc
PID 4428 wrote to memory of 2916	4428	vhtsfbc	vhtsfbc

C:\Users\Admin\AppData\Local\Temp\bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
"C:\Users\Admin\AppData\Local\Temp\bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3516

C:\Users\Admin\AppData\Local\Temp\bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe
"C:\Users\Admin\AppData\Local\Temp\bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1976

C:\Users\Admin\AppData\Roaming\vhtsfbc
C:\Users\Admin\AppData\Roaming\vhtsfbc
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4428

C:\Users\Admin\AppData\Roaming\vhtsfbc
C:\Users\Admin\AppData\Roaming\vhtsfbc
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2916

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\vhtsfbc

Filesize
186KB

MD5
e22f5d82448333c9047bafe9d1331d5f

SHA1
4be6fce8f1c01d622e9570a09c1632a96218e474

SHA256
bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5

SHA512
1bf0ecc04bb0a4f0569769191bb68f040dd4603c51d0de7ecad1018ea9cdd017b2cd39066d0dcc68b6e4db2344882d0e94995396bdc786bb3268e72469d1f936

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

Filesize
186KB

MD5
e22f5d82448333c9047bafe9d1331d5f

SHA1
4be6fce8f1c01d622e9570a09c1632a96218e474

SHA256
bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5

SHA512
1bf0ecc04bb0a4f0569769191bb68f040dd4603c51d0de7ecad1018ea9cdd017b2cd39066d0dcc68b6e4db2344882d0e94995396bdc786bb3268e72469d1f936

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

Filesize
186KB

MD5
e22f5d82448333c9047bafe9d1331d5f

SHA1
4be6fce8f1c01d622e9570a09c1632a96218e474

SHA256
bff5cd0eab781940d062b34c408f71354b17f8a3bbe30f4b8685da1d4b6be4c5

SHA512
1bf0ecc04bb0a4f0569769191bb68f040dd4603c51d0de7ecad1018ea9cdd017b2cd39066d0dcc68b6e4db2344882d0e94995396bdc786bb3268e72469d1f936

Download Submit
memory/1976-174-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-168-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-155-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-154-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-157-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-156-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-153-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-179-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1976-178-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-177-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-176-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-175-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-173-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-172-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-171-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-170-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-169-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-161-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-167-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-166-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-165-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-164-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-163-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-162-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1976-158-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-160-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-159-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-148-0x0000000000402DD8-mapping.dmp

Download
memory/1976-147-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1976-149-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-150-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-151-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/1976-152-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/2916-212-0x0000000000402DD8-mapping.dmp

Download
memory/2916-244-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2916-245-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3516-139-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-130-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-124-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-146-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-145-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-144-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-143-0x0000000000730000-0x000000000087A000-memory.dmp

Filesize
1.3MB

Download
memory/3516-142-0x0000000000730000-0x000000000087A000-memory.dmp

Filesize
1.3MB

Download
memory/3516-141-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-140-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-120-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-137-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-136-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-135-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-134-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-133-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-132-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-131-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-116-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-117-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-129-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-128-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-127-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-126-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-119-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-121-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-122-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-123-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-125-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/3516-118-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/4428-186-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/4428-185-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/4428-184-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/4428-183-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/4428-221-0x00000000001D0000-0x00000000001D9000-memory.dmp

Filesize
36KB

Download
memory/4428-182-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download
memory/4428-181-0x0000000077C90000-0x0000000077E1E000-memory.dmp

Filesize
1.6MB

Download