smokeloader | 33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c

Analysis

max time kernel
150s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
12/10/2022, 09:49

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General

Target

33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
Size

301KB
MD5

0ca249312473fc1bd15cc25f2322c9b9
SHA1

ea1c8ea5d3982b3050199312f9923c516acdb35f
SHA256

33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c
SHA512

32ab0d7d28171e8040e9d1a90ee45c0b568eae579882ef4dab485c2aa2e5be8f28d29d2edf87989feec3a119cbde603999667093eea71f9fe78c189cd71b8012
SSDEEP

6144:w7SOFroztCVlvtmdw5r7pUGaSQCxeigavwVfquS0n:w2i8JCV1tOwhn5QyTZa

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 8 IoCs

resource	yara_rule
behavioral1/memory/2432-150-0x00000000004B0000-0x00000000004B9000-memory.dmp	family_smokeloader
behavioral1/memory/3004-147-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/3004-146-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3004-163-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3004-179-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2904-212-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/2904-244-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2904-245-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
4832	cjerwcc
2904	cjerwcc

Deletes itself 1 IoCs

pid	Process
3104	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2432 set thread context of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 4832 set thread context of 2904	4832	cjerwcc	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	cjerwcc
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cjerwcc
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	cjerwcc

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3004	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
3004	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found
3104	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3104	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3004	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
2904	cjerwcc

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3104	Process not Found
Token: SeCreatePagefilePrivilege	3104	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 2432 wrote to memory of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 2432 wrote to memory of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 2432 wrote to memory of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 2432 wrote to memory of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 2432 wrote to memory of 3004	2432	33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe	66
PID 4832 wrote to memory of 2904	4832	cjerwcc	68
PID 4832 wrote to memory of 2904	4832	cjerwcc	68
PID 4832 wrote to memory of 2904	4832	cjerwcc	68
PID 4832 wrote to memory of 2904	4832	cjerwcc	68
PID 4832 wrote to memory of 2904	4832	cjerwcc	68
PID 4832 wrote to memory of 2904	4832	cjerwcc	68

C:\Users\Admin\AppData\Local\Temp\33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
"C:\Users\Admin\AppData\Local\Temp\33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe
  "C:\Users\Admin\AppData\Local\Temp\33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3004

C:\Users\Admin\AppData\Roaming\cjerwcc
C:\Users\Admin\AppData\Roaming\cjerwcc
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Roaming\cjerwcc
  C:\Users\Admin\AppData\Roaming\cjerwcc
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:2904

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\cjerwcc

Filesize
301KB

MD5
0ca249312473fc1bd15cc25f2322c9b9

SHA1
ea1c8ea5d3982b3050199312f9923c516acdb35f

SHA256
33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c

SHA512
32ab0d7d28171e8040e9d1a90ee45c0b568eae579882ef4dab485c2aa2e5be8f28d29d2edf87989feec3a119cbde603999667093eea71f9fe78c189cd71b8012

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

Filesize
301KB

MD5
0ca249312473fc1bd15cc25f2322c9b9

SHA1
ea1c8ea5d3982b3050199312f9923c516acdb35f

SHA256
33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c

SHA512
32ab0d7d28171e8040e9d1a90ee45c0b568eae579882ef4dab485c2aa2e5be8f28d29d2edf87989feec3a119cbde603999667093eea71f9fe78c189cd71b8012

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

Filesize
301KB

MD5
0ca249312473fc1bd15cc25f2322c9b9

SHA1
ea1c8ea5d3982b3050199312f9923c516acdb35f

SHA256
33dd4c2ce64fc38b0e15b3ab7cc362faeec2d3c0b5a26c72f9b7887e4f1e6b6c

SHA512
32ab0d7d28171e8040e9d1a90ee45c0b568eae579882ef4dab485c2aa2e5be8f28d29d2edf87989feec3a119cbde603999667093eea71f9fe78c189cd71b8012

Download Submit
memory/2432-116-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-117-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-118-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-119-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-120-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-121-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-122-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-123-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-124-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-125-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-126-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-127-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-128-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-129-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-130-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-131-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-132-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-133-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-134-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-135-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-136-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-137-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-138-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-139-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-141-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-142-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-143-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-144-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-145-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/2432-150-0x00000000004B0000-0x00000000004B9000-memory.dmp

Filesize
36KB

Download
memory/2904-245-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2904-244-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3004-152-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-168-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-146-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3004-153-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-154-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-155-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-156-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-157-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-158-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-159-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-160-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-161-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-163-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3004-162-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-164-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-165-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-166-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-167-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-148-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-169-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-170-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-171-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-172-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-173-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-174-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-175-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-176-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-177-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-178-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-179-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3004-149-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/3004-151-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/4832-183-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/4832-184-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/4832-185-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/4832-218-0x00000000006AD000-0x00000000006BD000-memory.dmp

Filesize
64KB

Download
memory/4832-182-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download
memory/4832-181-0x0000000076EF0000-0x000000007707E000-memory.dmp

Filesize
1.6MB

Download