smokeloader | 461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378

Analysis

max time kernel
150s
max time network
146s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
09-09-2022 18:28

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General

Target

461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
Size

207KB
MD5

803df6aa55e68949c44f10d2c4e75129
SHA1

27a718129a9e61ec233a605013c3f62ec7945079
SHA256

461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378
SHA512

5d56c50c9b61ba4ec5fbf7185015771e1a88f8ac669c08e3c78977d442aec079bba3bb239c2781e44c411d74dee37b68d2a776fda659f24b417931abc758db6e
SSDEEP

3072:k8HIIHFO2l5vlo2/573mRZZ/tvvkrteFkoqiURx:dHFtl5NomGpIjx

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 8 IoCs

resource	yara_rule
behavioral1/memory/2656-142-0x0000000002CE0000-0x0000000002CE9000-memory.dmp	family_smokeloader
behavioral1/memory/3980-145-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/3980-144-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3980-158-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3980-177-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1156-209-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/1156-240-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1156-241-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
4672	gbsjhac
1156	gbsjhac

Deletes itself 1 IoCs

pid	Process
3032	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 4672 set thread context of 1156	4672	gbsjhac	68

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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gbsjhac
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gbsjhac
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gbsjhac
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3980	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
3980	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
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3032	Process not Found
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3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found
3032	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3032	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3980	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
1156	gbsjhac

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3032	Process not Found
Token: SeCreatePagefilePrivilege	3032	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 2656 wrote to memory of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 2656 wrote to memory of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 2656 wrote to memory of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 2656 wrote to memory of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 2656 wrote to memory of 3980	2656	461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe	66
PID 4672 wrote to memory of 1156	4672	gbsjhac	68
PID 4672 wrote to memory of 1156	4672	gbsjhac	68
PID 4672 wrote to memory of 1156	4672	gbsjhac	68
PID 4672 wrote to memory of 1156	4672	gbsjhac	68
PID 4672 wrote to memory of 1156	4672	gbsjhac	68
PID 4672 wrote to memory of 1156	4672	gbsjhac	68

C:\Users\Admin\AppData\Local\Temp\461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
"C:\Users\Admin\AppData\Local\Temp\461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe
  "C:\Users\Admin\AppData\Local\Temp\461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3980

C:\Users\Admin\AppData\Roaming\gbsjhac
C:\Users\Admin\AppData\Roaming\gbsjhac
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Roaming\gbsjhac
  C:\Users\Admin\AppData\Roaming\gbsjhac
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:1156

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\gbsjhac

Filesize
207KB

MD5
803df6aa55e68949c44f10d2c4e75129

SHA1
27a718129a9e61ec233a605013c3f62ec7945079

SHA256
461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378

SHA512
5d56c50c9b61ba4ec5fbf7185015771e1a88f8ac669c08e3c78977d442aec079bba3bb239c2781e44c411d74dee37b68d2a776fda659f24b417931abc758db6e

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

Filesize
207KB

MD5
803df6aa55e68949c44f10d2c4e75129

SHA1
27a718129a9e61ec233a605013c3f62ec7945079

SHA256
461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378

SHA512
5d56c50c9b61ba4ec5fbf7185015771e1a88f8ac669c08e3c78977d442aec079bba3bb239c2781e44c411d74dee37b68d2a776fda659f24b417931abc758db6e

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

Filesize
207KB

MD5
803df6aa55e68949c44f10d2c4e75129

SHA1
27a718129a9e61ec233a605013c3f62ec7945079

SHA256
461d005b1dfa92a781fea1bc3242f4fd94f3cadb105fbb45baf75ff728551378

SHA512
5d56c50c9b61ba4ec5fbf7185015771e1a88f8ac669c08e3c78977d442aec079bba3bb239c2781e44c411d74dee37b68d2a776fda659f24b417931abc758db6e

Download Submit
memory/1156-209-0x0000000000402DD8-mapping.dmp

Download
memory/1156-240-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1156-241-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2656-129-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-132-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-119-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-120-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-121-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-122-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-123-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-124-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-125-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-126-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-127-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-128-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-117-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-130-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-131-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-118-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-133-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-134-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-135-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-136-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-137-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-138-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-139-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-140-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-141-0x0000000002E48000-0x0000000002E59000-memory.dmp

Filesize
68KB

Download
memory/2656-142-0x0000000002CE0000-0x0000000002CE9000-memory.dmp

Filesize
36KB

Download
memory/2656-143-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-147-0x0000000002E48000-0x0000000002E59000-memory.dmp

Filesize
68KB

Download
memory/2656-116-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-115-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-149-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-166-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-146-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-150-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-151-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-152-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-153-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-154-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-155-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-156-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-158-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3980-159-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-160-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-157-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-161-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-162-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-163-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-164-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-165-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-148-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-167-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-168-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-169-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-170-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-171-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-172-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-173-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-174-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-175-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-176-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/3980-177-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3980-145-0x0000000000402DD8-mapping.dmp

Download
memory/3980-144-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4672-181-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-182-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-180-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-179-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-183-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-184-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download
memory/4672-185-0x00000000775D0000-0x000000007775E000-memory.dmp

Filesize
1.6MB

Download